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acetaminophen
brand name: Tylenol
category: non-steroidal analgesic/antipyretic
main action: relieve pain and fever (NOT inflammation)
MOA: exact mechanism is unknown but thought to inhibit the synthesis of prostaglandins in the central nervous system (possibly through COX-3 enzyme instead of COX-1/2)
uses: mild to moderate pain
side effects: liver toxicity with chronic overuse
acetaminophen-codeine
brand name: Tylenol #3
category: non-steroidal analgesic + opioid combo
main action: relieve pain and fever (NOT inflammation)
MOA:
--exact mechanism of acetaminophen is unknown but thought to inhibit the synthesis of prostaglandins in the central nervous system (possibly through COX-3 enzyme instead of COX-1/2)
--codeine stimulates opiate mu receptors, which leads to decreased adenylate cyclase activity and results in decreased neuronal excitability and decreased release of Glu, ACh, 5-HT, NE, and substance P
uses: mild to moderate pain
side effects:
--liver toxicity with chronic overuse
--respiratory depression
--nausea & vomiting
--drug dependence
--miosis
--constipation
acetaminophen-hydrocodone
brand name: Lortab, Vicodin
category: non-steroidal analgesic + opioid combo
main action: relieve pain and fever (NOT inflammation)
MOA:
--exact mechanism of acetaminophen is unknown but thought to inhibit the synthesis of prostaglandins in the central nervous system (possibly through COX-3 enzyme instead of COX-1/2)
--hydrocodone stimulates opiate mu receptors, which leads to decreased adenylate cyclase activity and results in decreased neuronal excitability and decreased release of Glu, ACh, 5-HT, NE, and substance P
uses: moderate to severe pain + cough relief
side effects:
--liver toxicity with chronic overuse
--respiratory depression
--nausea & vomiting
--drug dependence
--miosis
--constipation
acetazolamide
brand name: Diamox
category: carbonic anhydrase inhibitor (oral)
main action: decrease aqueous production to lower IOP (20%)
MOA: inhibits carbonic anhydrase in the ciliary body, preventing water and carbon dioxide from getting into the ciliary body from the blood, thus never converted to bicarbonate to get into aqueous and resulting in reduced sodium and fluid transport into aqueous
uses:
--open angle glaucoma
--acute, extreme IOP elevation (>40)
--idiopathic intracranial hypertension (IIH)
--cystoid macular edema (e.g., in retinitis pigmentosa)
side effects:
—bitter, metallic taste
--blurry vision
--kidney stones
--sulfa reaction (SJS)
--aplastic anemia (bone marrow suppression)
--fatigue
contraindications:
--sulfa allergy
--renal dysfunction
--renal calculi
--sickle cell anemia
acetylcysteine
brand name: Mucomyst
main action: break down mucus on ocular surface
MOA: breaks down disulfide bridges in mucus to dissolve it, as well as inhibits MMP secretion and facilitates wound healing in damaged epithelial cells
uses:
--filamentary keratitis (and associated dry eye symptoms)
--may also be used as antidote for acetaminophen overdose
side effects:
—rotten egg odor
acyclovir
brand name: Zovirax
category: antiviral (nucleotide analog)
main action: inhibits viral DNA polymerase to reduce pain, shorten healing time, and reduce viral shedding
MOA: deoxyguanosine derivative that is phosphorylated by viral and host cell kinases so that it can be incorporated into DNA to be taken up by viral DNA polymerase (NOT the human enzyme), thus inhibiting the enzyme from producing viral DNA
uses: herpesviruses
--chicken pox
--shingles
--HSV keratitis
note: mostly used for acute symptom management, not chronic management
side effects:
—nausea
--vomiting
--diarrhea
--liver/kidney issues
--eye irritation & SPK
--follicular conjunctivitis
--contains lactose, so not good for lactose intolerant patients
aflibercept
brand name: Eylea
category: anti-VEGF agent
main action: prevents and controls neovascularization in the retina
MOA: inhibits VEGF-A, VEGF-B, and placental growth factor (PGF) from binding to their receptors, which are normally produced by a hypoxic retina to induce weak, leaky vessels in an attempt to restore oxygen to the retina; therefore, it controls neovascularization
uses:
--wet AMD
--diabetic macular edema
--any kind of retinal or choroidal neovascularization
side effects:
—eye pain
--conjunctival hemorrhage
--floaters
--increasd IOP
--inflammation
--Crunch syndrome: tractional RD following injection in an eye with PDR
albendazole
brand name: Albenza
category: anti-parasitic
main action: inhibits glucose absorption in tapeworms
MOA: inhibits tubulin polymerization, immobilizing the worm and preventing it from absorbing and using glucose
uses: tapeworms
side effects:
—nausea
--stomach pain
--diarrhea
--headache/dizziness
albuterol
brand name: Proventil, Ventolin
category: sympathetic agonist
main action: bronchodilation
MOA: stimulates beta 2 receptors to induce smooth muscle relaxation in the lungs
uses: asthma, COPD
side effects:
--headache
--muscle tremors & shakiness
--sore throat
--tachycardia
alcaftadine
brand name: Lastacaft
category: mast cell stabilizer + antihistamine dual acting agent
main action: prevents release of histamine/pro-inflammatory markers and blocks cells from responding to histamine that has already been released
MOA:
--blocks calcium channels in mast cells to prevent degranulation and histamine release
--blocks H1 receptors to prevent histamine from binding
uses: acute & chronic allergies (e.g., allergic conjunctivitis)
side effects:
—dry eye
--foreign body sensation
--burning
--bad taste
--blurry vision
--hyperemia
--tearing
--rhinitis
alendronate
brand name: Fosamax
category: bisphosphonate
main action: prevents bone breakdown and increases bone density
MOA: binds to hydroxyapatite crystals within bone to downregulate osteoclast-mediated resorption
uses: osteoporosis
side effects:
—nausea
--heartburn
--constipation or diarrhea
--joint, muscle, or bone pain
--headache
--esophageal ulcers
--jaw issues
--blurry vision, diplopia, light sensitivity
alfa-2b interferon
brand name: Intron-A
category: immunomodulator
main action: synthetic protein that helps your immune system fight viral infections and certain cancer growth
MOA: binds to cell surface receptors to initiate the JAK/STAT pathway and activate the host defense system
uses:
--hepatitis B & C
--lymphoma
--malignant melanoma
--Kaposi sarcoma
--hairy cell leukemia
--genital warts
side effects: wide range of toxicities since we're essentially ramping up someone's immune system
allopurinol
brand name: Zyloprim
category: xanthine oxidase inhibitor
main action: decreases uric acid levels in the blood
MOA: inhibits the enzyme xanthine oxidase, which is usually responsible for converting hypoxanthine to uric acid
uses:
--gout
--prevention of excess uric acid caused by cancer medicines or kidney stones
side effects:
—skin rash
--nausea & vomiting
--drowsiness
--diarrhea
--yellowing of eyes
alprazolam
brand name: Xanax
category: benzodiazepine
main action: inhibit neural activity to provide a calming and sedative effect
MOA: binds to the GABA-A chloride channel receptor to facilitate the binding of GABA, resulting in increased Cl influx and thus more hyperpolarization and less depolarization, propagating the inhibitory effect of GABA
uses: anxiety & insomnia
side effects:
—sedation & hypnotic effect
--nystagmus
--diplopia
--ataxia
--drowsiness
--amnesia
--increased hostility and irritability
--confusion in elderly
--vivid, disturbing dreams
amantadine
brand name: Symmetrel
category: antiviral & treatment of extrapyramidal signs
main action:
--prevents uncoating of the flu virus
--manages extrapyramidal side effects seen with antipsychotics
MOA:
--blocks viral M2 proton channels that are normally needed to acidify the virus so it can be uncoated
--Parkinson's effect not well understood, but likely increases dopamine release in basal ganglia and also possibly inhibits dopamine reuptake
uses:
--influenza
--Parkinson's disease
side effects:
—high incidence of viral resistance due to mutation of M2 channel
amikacin
brand name: Amikin
category: aminoglycoside (antibiotic)
main action: inhibits protein synthesis
MOA: irreversibly inhibits the 30S subunit of the ribosome to inhibit bacterial protein synthesis
spectrum: bactericidal against aerobic gram (-) bacteria and only acts against gram (+) synergistically
uses:
--meningitis
--infections of blood, abdomen, lungs, skin, bones, urinary tract
side effects:
—ototoxicity: hair cell damage, tinnitus, nystagmus, dizziness, vertigo
--nephrotoxicity
--GI upset
aminocaproic acid
brand name: Amicar
category: hemostatic agent (anti-fibrinolytic)
main action: prevents clot breakdown
MOA: competitively inhibits lysine binding sites on plasmin so that it cannot degrade fibrin, thus preventing excessive bleeding
uses: used when blood clots are broken down too quickly in patients after surgery or with bleeding disorders
other key info: possibly used as a reversal agent for alteplase (tissue plasminogen activator - breaks down fibrin clots)
amiodarone
brand name: Cordarone, Pacerone
category: anti-arrhythmic
main action: slows nerve impulses in the heart to regulate heart rhythm
MOA:
--blocks potassium currents that cause repolarization of the heart muscle during the third phase of the cardiac action potential, thus increasing duration of action potential and refractory period, reducing muscle cell excitability and preventing/treating abnormal heart rhythms
--also acts on beta 1 receptors and Na/Ca channels, as well as decreases firing of SA node
uses: ventricular tachycardia & fibrillation
side effects:
—vortex keratopathy
--NAION
--anterior lens subcapsular opacities
--hypotension
--bradycardia
--hypothyroidism (since it can also bind to thyroid receptors)
--pulmonary fibrosis
--worsening of arrhythmia
amitriptyline
brand name: Elavil
category: tricyclic antidepressant
MOA:
--blocks reuptake of serotonin & norepinephrine via transporter to keep them more available in the synaptic cleft
--increases release of serotonin and NE over the following 2-4 weeks
--also blocks adrenergic, cholinergic, and histamine receptors
uses:
--depression
--headaches/migraines
--nerve pain
--anxiety disorders
--OCD
side effects:
--CV effects from alpha antagonism: orthostatic hypotension, reflex tachycardia
--anti-SLUDGE from anti-cholinergic effect
--blurry vision
--headaches
--narrow angles
--antihistamine effects: sedation, weakness, fatigue
--serotonin syndrome: anxiety, agitation, sweating, confusion, tremors, high BP, high heart rate
amlodipine
brand name: Norvasc
category: calcium channel blocker (w/o cardiac effects)
main action: decrease blood pressure
MOA: selectively blocks calcium channels in blood vessels (not the heart) so they can't constrict; instead, vascular smooth muscle relaxes (vasodilation)
uses: hypertension
side effects:
—reflex tachycardia
--dizziness
amoxicillin
brand name: Amoxil, Dispermox
category: β lactam/penicillin (antibiotic)
main action: inhibits cell wall synthesis
MOA: inhibits active site on penicillin binding proteins (transpeptidases) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against gram (+) cocci; narrow spectrum but slightly more extended than regular penicillin
uses: wide variety of infections including ENT, sinuses, skin, lower respiratory tract, GI tract, urinary system
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction
--GI upset
amoxicillin-clavulanate
brand name: Augmentin
category: β lactam + β lactamase inhibitor (antibiotic)
main action: inhibits cell wall synthesis
MOA:
--amoxicillin inhibits active site on penicillin binding proteins (transpeptidases) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
--clavulanate inhibits the β lactamase enzyme produced by bacteria to destroy amoxicillin
spectrum: bactericidal against gram (+) cocci; narrow spectrum but slightly more extended than regular penicillin
uses: wide variety of infections including ENT, sinuses, skin, lower respiratory tract, GI tract, urinary system
side effects:
--allergic reaction
--has more GI effects than just amoxicillin
amphotericin B
brand name: Amphocin
category: polyene (anti-fungal)
main action: disrupts fungal cell membrane stability
MOA: binds to ergosterol in the cell membrane and removes it to create pores, causing leakage of K ions and osmotic imbalance, resulting in fungal cell lysis and death
uses:
--fungal keratitis and endophthalmitis
--systemic life-threatening fungal infections
side effects:
—reversible renal damage
--hypotension
--vomiting
--heart issues
--liver issues
apixaban
brand name: Eliquis
category: anticoagulant (blood thinner)
main action: prevents fibrin clotting
MOA: directly binds to and inhibits Factor Xa to prevent it from activating prothrombin to convert it into thrombin (therefore fibrin can never be activated)
uses:
--those with DVT
--prevention of clotting in patients with atrial fibrillation
side effects:
—bleeding & bruising
--subconjunctival hemorrhages
--valsalva retinopathy
--contraindicated in pregnancy
apraclonidine
brand name: Iopidine
category: sympathetic agonist
main action: decrease aqueous production & increase uveoscleral outflow to lower IOP (up to 40%)
MOA: non-selectively stimulates alpha 1 (weak) and alpha 2 (strong) receptors in ciliary body vessels to activate an inhibitory G protein, downregulate cAMP and protein kinase A, and slow down Na/K ATPase in NPCE, as well as possibly increase prostaglandin release to increase outflow
uses:
--glaucoma
--diagnosis of Horner's pupil
--in-office IOP lowering
--prevent post-laser IOP spikes
side effects:
--tachyphylaxis after a few weeks
--follicular conjunctivitis
--hypotension
--dizziness & drowsiness
--dry mouth
--CNS depression
--anterior uveitis (rare)
contraindications:
--concurrent use of MAO inhibitors
--children
aripiprazole
brand name: Abilify
category: atypical antipsychotic
main action: alleviates negative symptoms of psychosis (e.g., delusions, hallucinations) with fewer extrapyramidal side effects than typical antipsychotics
MOA:
--acts as a full antagonist against serotonin receptors in the mesocortical pathway, and since serotonin usually blocks dopamine release, this leads to increased dopamine
--acts as a partial agonist for dopamine receptors in the mesolimbic and mesocortical pathways, acting like a functional antagonist in the mesolimbic (to decrease DA) and functional agonist in the mesocortical (to increase DA)
uses:
--schizophrenia
--bipolar disorder
--other psychoses
--Tourette's syndrome
side effects: fewer side effects than typical antipsychotics
articaine
brand name: Zorcaine
category: amide-type anesthetic
MOA: reversible blockage of sodium channel from within the cell, preventing Na influx and thus depolarization
uses: local dental anesthesia
side effects:
--restlessness & tremor
--euphoria
--drowsiness & sedation
--vasodilation
--hypotension
--cardiac depression
--loss of muscle tone
ascorbic acid**
also known as: vitamin C
category: water soluble vitamin
main action: accelerates epithelial wound healing and minimizes scarring, such as in erosions, abrasions, and ulcers
MOA:
--suppresses VEGF and MMPs
--acts as a cofactor in synthesis of extracellular matrix
--acts as an antioxidant
aspirin
also known as: acetylsalicylic acid (ASA)
category: NSAID + anti-platelet (blood thinner)
main action: reduces inflammation & platelet aggregation
MOA:
--if low dose ("baby" aspirin), selectively irreversibly inhibits COX-1 to prevent production of thromboxane A2, which normally promotes vasoconstriction and platelet aggregation (thus vasodilation and anti-aggregation)
--if higher dose, also irreversibly inhibits COX-2 to prevent production of prostaglandins that promote inflammation
uses:
--headache/general inflammation
--prevention of second stroke/MI
--acute MI symptoms
side effects:
—prolonged bleeding
--subconjunctival hemorrhages
--valsalva retinopathy
--kidney/liver failure
--Reye's syndrome in kids
--exacerbation of ulcers since COX-1 helps to protect gastric mucosal lining (so NSAIDs are contraindicated for ulcers)
aspirin-dipyridamole
brand name: Aggrenox
category: anti-platelet combo (blood thinner)
main action: reduces platelet aggregation
MOA:
--aspirin inhibits COX-1 to prevent production of thromboxane A2, which normally promotes vasoconstriction and platelet aggregation (thus vasodilation and anti-aggregation)
--dipyridamole inhibits phosphodiesterase, leading to increased cAMP and reduced calcium, thus promoting vasodilation and reducing platelet activation
uses: stroke prevention in patients who have had TIAs
side effects:
—bleeding & bruising
--exacerbation of ulcers since COX-1 helps to protect gastric mucosal lining (so NSAIDs are contraindicated for ulcers)
atenolol
brand name: Tenormin
category: beta blocker (B1 selective)
main action: decrease heart rate to decrease BP
MOA: blocks beta 1 receptors in the heart and kidney to decrease heart rate and renin secretion
uses: hypertension
side effects:
--masks hypoglycemia (careful w/ diabetics)
--bradycardia (can mask symptoms of hyperthyroidism)
--arrythmia
--hypotension
--cardiac arrest
--confusion, depression, headache
--can lead to tachyphylaxis
--respiratory failure
--nausea, vomiting, diarrhea
--erectile dysfunction
--fatigue (can exacerbate MG)
atenolol-chlorthalidone
brand name: Tenoretic
category: beta blocker + diuretic (thiazide-like)
main action:
--decrease heart rate to decrease BP (atenolol)
--increase fluid excretion to reduce blood volume & BP (chlorthalidone)
MOA:
--atenolol blocks beta 1 receptors in the heart and kidney to decrease heart rate and renin secretion
--chlorthalidone inhibits Na/Cl symporter in the distal tubule to decrease reabsorption of Na
uses: hypertension
side effects:
--depression
--fatigue
--vivid dreams
--masks hypoglycemia
--hypokalemia
atorvastatin
brand name: Lipitor
category: HMG CoA reductase inhibitors (statins)
main action: inhibits cholesterol synthesis
MOA: blocks HMG CoA reductase in the liver, which results in less cholesterol being made and incorporated into VLDLs, so the liver now takes up the LDLs from plasma
uses: high cholesterol
other important info: one of the only two high intensity statins
side effects:
—muscle and liver damage
--contraindicated in pregnancy since fetus needs lots of cholesterol
--possible cataract progression
atropine**
category: parasympathetic antagonist
MOA: non-selectively blocks muscarinic receptors on the iris sphincter and ciliary body muscle, preventing iris constriction and accommodation
uses:
--myopia management
--amblyopia treatment
--dilation/cycloplegia for 7-10 days
--uveitis
--oral route: can work with pralidoxime to cure organophosphate poisoning
side effects:
--light sensitivity
--blurry vision at near
--increased IOP
--SPK
--anti-SLUDGE
--tachycardia
contraindications:
--narrow angles
--Down syndrome
--infants
autologous serum**
main action: mimic natural tears for dry eye treatment
MOA: mimic salinity and pH of tears without preservatives to 1) lubricate the ocular surface and 2) provide necessary growth factors, anti-inflammatory cytokines, chemokines, and hyaluronic acid to promote a healthy ocular surface
uses: severe dry eye syndrome
side effects: minimal since no preservatives and is very similar to tears
azathioprine
brand name: Azasan, Imuran
category: DMARD (immunosuppressant)
main action: suppress inflammation
MOA: purine analog that converts to its active metabolites, mercaptopurine (6-MP) and thioguanine (6-TGN), to inhibit purine synthesis and incorporate into DNA to halt replication and cell division
uses:
--rheumatoid arthritis
--prevent kidney transplant rejection
--off-label for inflammatory bowel disease
side effects:
—nausea, fever, fatigue
--bone marrow suppression
--rash
--kidney damage
--hepatotoxicity
azelastine
brand name: Optivar
category: mast cell stabilizer + antihistamine dual acting agent
main action: prevents release of histamine/pro-inflammatory markers and blocks cells from responding to histamine that has already been released
MOA:
--blocks calcium channels in mast cells to prevent degranulation and histamine release
--blocks H1 receptors to prevent histamine from binding
uses: acute & chronic allergies (e.g., allergic conjunctivitis)
side effects:
—dry eye
--foreign body sensation
--burning
--bad taste
--blurry vision
--hyperemia
--tearing
--rhinitis
azithromycin
brand name: AzaSite, Z-Pak, Zithromax
category: macrolide (antibiotic)
main action: inhibits bacterial protein synthesis
MOA: reversibly inhibit the 50S ribosomal subunit to inhibit bacterial protein synthesis
spectrum: bacteriostatic against some gram (+), some gram (-), and some atypical bacteria
uses:
--URTI
--pneumonia
--chlamydia
--gonorrhea
--dry eye
--internal hordeolum
side effects:
—GI upset
--eye irritation
--contact dermatitis
--keratitis
--dry eye
--nasal congestion
--sinusitis
beclomethasone
brand name: Beconase AQ, QVAR
category: nasal and inhaled steroid
main action: prevents synthesis of pro-inflammatory markers
MOA: inhibits phospholipase A2 via production of annexin A1 from cytoplasmic or nuclear receptors, resulting in decreased arachidonic acid available to make prostaglandins and other pro-inflammatory mediators
uses: asthma
side effects:
—Addisonian crisis if not tapered (decreased BP & blood sugar, increased blood K)
--increased blood sugar
--insomnia
--increased appetite/weight
--nausea & GI issues
--posterior subcapsular cataract
--higher risk of infection
--decreased wound healing
--dry nose/mouth
benazepril
brand name: Lotensin
category: ACE inhibitor
main action: decrease blood pressure
MOA: blocks ACE enzyme in the lungs, preventing conversion of inactive angiotensin I into active angiotensin II, which keeps aldosterone from being released (resulting in vasodilation)
uses: hypertension
other important info: good BP drug for patients with diabetes and kidney issues
side effects:
—dry cough
--fetal/neonatal problems (contraindicated for pregnant patients!)
benoxinate**
brand name: Fluress (w/ fluorescein)
category: ester-type anesthetic
MOA: reversible blockage of sodium channel from within the cell, preventing Na influx and thus depolarization
uses:
--Goldmann tonometry
side effects:
--mild SPK
--conjunctival hyperemia
--decreased TBUT
--burning/stinging
--reduced epithelial healing
--photophobia & pain
--ulcers with long term use
--vasovagal syncope
benzalkonium chloride**
also known as: BAK
category: chemical preservative (quaternary ammonium)
MOA: increases permeability of bacterial cell membrane in order to lyse its contents
uses: #1 preservative in eye drops (also used to make Polyquad)
side effects:
--SPK ("BAK causes SPK")
--decreased TBUT
--tearing, burning, itching
bepotastine
brand name: Bepreve
category: mast cell stabilizer + antihistamine dual acting agent
main action: prevents release of histamine/pro-inflammatory markers and blocks cells from responding to histamine that has already been released
MOA:
--blocks calcium channels in mast cells to prevent degranulation and histamine release
--blocks H1 receptors to prevent histamine from binding
uses: acute & chronic allergies (e.g., allergic conjunctivitis)
side effects:
—dry eye
--foreign body sensation
--burning
--bad taste
--blurry vision
--hyperemia
--tearing
--rhinitis
besifloxacin
brand name: Besivance
category: 4th gen. fluoroquinolone (antibiotic)
main action: inhibits bacterial nucleic acid synthesis
MOA: inhibits DNA gyrase in gram (-) bacteria and DNA topoisomerase in gram (+) bacteria, which both normally prevent supercoiling of DNA, thus these inhibit DNA synthesis altogether
spectrum: bactericidal against most gram (-) with extensive action against gram (+) and atypical bacteria
note: newer generation FLQs are less resistant than earlier generation drugs, especially with gram (+) bacteria
uses: various bacterial eye infections (Pseudomonas) + prophylaxis after LASIK
side effects:
—GI upset
--CNS symptoms: headache, dizziness, depression, insomnia
--black box warning: tendinitis/tendon rupture
--exacerbates muscle weakness in myasthenia gravis
betaxolol
brand name: Betoptic S
category: beta blocker (B1 selective)
main action: decrease aqueous humor production to lower IOP (20-25%)
MOA: inhibits norepinephrine from binding to beta 1 receptors ONLY (selective), which normally upregulates cAMP and protein kinase to activate the Na/K pump in NPCE
uses: POAG & angle closure attacks
side effects: less likely than other beta blockers to induce respiratory complications, but more likely to worsen CHF
bevacizumab
brand name: Avastin
category: anti-VEGF agent
main action: prevents and controls neovascularization in the retina
MOA: inhibits all VEGF isomers from binding to their receptors, which are normally produced by a hypoxic retina to induce weak, leaky vessels in an attempt to restore oxygen to the retina; therefore, it controls neovascularization
uses:
--wet AMD
--diabetic macular edema
--any kind of retinal or choroidal neovascularization
--all ocular use is off-label: actually intended for colorectal cancer
side effects:
—eye pain
--conjunctival hemorrhage
--floaters
--increasd IOP
--inflammation
--Crunch syndrome: tractional RD following injection in an eye with PDR
bimatoprost
brand name: Lumigan, Durysta, Latisse
category: prostaglandin analog
main action: increase uveoscleral outflow to decrease IOP (30%)
MOA: binds to prostanoid receptors for PGF2-alpha, which are located directly on aqueous outflow structures, causing...
--substantial remodeling of extracellular matrix
--decreased collagen in ciliary muscle and sclera
--decreased hydraulic resistance to outflow
--increased MMP production, causing a breakdown in collagen
uses:
--glaucoma or ocular HTN
--eyelash growth
side effects:
--hyperemia (most common)
—eyelash growth (Latisse)
--periocular pigmentation (due to phospholipase C activation on skin receptors)
--periorbitopathy
--iris darkening (due to phospholipase C activation on skin receptors)
--conjunctival hyperemia
--cystoid macular edema
--corneal pseudo-dendrites
--blurry vision
--burning, stinging, SPK
--ocular inflammation
brimonidine
brand name: Alphagan P, Lumify
category: alpha agonist (sympathetic agonist)
main action:
--lower IOP (25%) by decreasing aqueous production and increasing uveoscleral outflow
--vasoconstriction for eye whitening
MOA: selectively stimulates alpha 2 receptors in ciliary body vessels to activate an inhibitory G protein, downregulate cAMP and protein kinase A, and slow down Na/K ATPase in NPCE, as well as possibly increase prostaglandin release to increase outflow
uses:
--open angle glaucoma, mostly as adjunct therapy with BBs or PGAs
--red eyes
side effects:
--tachyphylaxis after a few weeks
--follicular conjunctivitis
--miosis
--hypotension
--dizziness & drowsiness
--dry mouth
--CNS depression
--anterior uveitis (rare)
contraindications:
--concurrent use of MAO inhibitors
--children
brimonidine-timolol
brand name: Combigan
category: alpha agonist + beta blocker (non-selective)
main action:
--decrease aqueous humor production (both)
--increase uveoscleral outflow (brimon.)
MOA:
--brimonidine stimulates alpha 2 receptors in ciliary body vessels to slow down Na/K ATPase in NPCE, as well as possibly increase prostaglandin release to increase outflow
--timolol inhibits norepinephrine from binding to beta 1 and beta 2 receptors, which normally activate the Na/K pump in NPCE
uses: glaucoma
side effects:
--masks hypoglycemia
--bradycardia
--arrythmia
--hypotension
--can lead to tachyphylaxis
--follicular conjunctivitis
--dry mouth
contraindications: DO NOT give to patients with COPD, asthma, CHF, low pulse, or hypotension
brinzolamide
brand name: Azopt
category: carbonic anhydrase inhibitor (topical)
main action: decrease aqueous production to lower IOP (20%)
MOA: inhibits carbonic anhydrase in the ciliary body, preventing water and carbon dioxide from getting into the ciliary body from the blood, thus never converted to bicarbonate to get into aqueous and resulting in reduced sodium and fluid transport into aqueous
uses:
--open angle glaucoma
--acute, extreme IOP elevation (>40)
side effects:
—bitter, metallic taste
--blurry vision
--irritation & burning
--FBS
--keratitis
--corneal edema
--kidney stones
--sulfa reaction (SJS)
--aplastic anemia (bone marrow suppression)
--fatigue
contraindications:
--sulfa allergy
--renal dysfunction
--renal calculi
--sickle cell anemia
brinzolamide-brimonidine
brand name: Simbrinza
category: carbonic anhydrase inhibitor + alpha agonist
main action:
--decrease aqueous production to lower IOP (both)
--increase uveoscleral outflow (brimonidine only)
MOA:
--brinzolamide inhibits carbonic anhydrase in the ciliary body, preventing water and carbon dioxide from getting into the ciliary body from the blood, thus never converted to bicarbonate to get into aqueous
--brimonidine stimulates alpha 2 receptors to slow down Na/K ATPase in NPCE, as well as possibly increase prostaglandin release to increase outflow
uses: glaucoma
side effects:
--follicular conjunctivitis
--hypotension
--dry mouth
--bitter metallic taste
--mild irritation & keratitis
--corneal edema
--renal issues
brolucizumab**
brand name: Beovu
category: anti-VEGF agent
main action: prevents and controls neovascularization in the retina
MOA: inhibits VEGF-A from binding to its receptors, which is normally produced by a hypoxic retina to induce weak, leaky vessels in an attempt to restore oxygen to the retina; therefore, it controls neovascularization
uses: wet AMD
side effects:
--retinal vasculitis
--retinal artery occlusion
--severe vision loss
—eye pain
--conjunctival hemorrhage
--floaters
--increasd IOP
--inflammation
--Crunch syndrome: tractional RD following injection in an eye with PDR
bromfenac
brand name: Bromday, Prolensa, Xibrom
category: NSAID
main action: inhibits inflammation
MOA: inhibits cyclooxygenase (COX-1 and COX-2 equally) enzymes, thus preventing the formation of pro-inflammatory prostaglandins
uses: post-cataract surgery to prevent Irvine-Gass syndrome (not really used as much for ocular allergies anymore)
side effects:
--blurry vision
--stinging upon instillation
--conjunctival hyperemia
--corneal SPK, thinning, melting
bromocriptine
brand name: Parlodel
category: dopamine receptor agonist
MOA:
--selectively binds and stimulates D2 dopamine receptors in the striatum and anterior pituitary (while acting as a partial agonist for D1 receptors)
--dopaminergic effect can counteract growth hormone release
--acts on the circadian neuronal activities in the hypothalamus to reset an abnormally elevated hypothalamic drive for increased plasma glucose, free fatty acids, and triglycerides in insulin-resistant patients
uses:
--hyperprolactinemia (helps with amenorrhea, infertility, abnormal milk production)
--acromegaly
--Parkinson's disease
--type II diabetes
side effects:
—drowsiness
--low blood pressure
--heart attack, stroke, seizure
--compulsive behaviors
brompheniramine
brand name: Dimetane
category: 1st generation antihistamine
main action: block the effect of pro-inflammatory markers like histamine
MOA:
--blocks H1 (and some H2) receptors (including those in the brain after crossing the blood brain barrier) to block inflammation mediated by histamine
--also has a partial anti-muscarinic effect
uses:
--allergies
--common cold
--sleep agent
--motion sickness
side effects:
—sedation
--mydriasis
--dry eye
--acute poisoning: paradoxical excitement, hallucinations, ataxia, incoordination, convulsions, coma, mixed pupils, cardiorespiratory collapse
budesonide
brand name: Uceris
category: glucocorticoid
main action: treats respiratory and digestive conditions by preventing synthesis of pro-inflammatory markers
MOA: inhibits phospholipase A2 via production of annexin A1 from cytoplasmic or nuclear receptors, resulting in decreased arachidonic acid available to make prostaglandins and other pro-inflammatory mediators
uses:
--asthma
--COPD
--Crohn's disease
--ulcerative colitis
side effects:
—Addisonian crisis if not tapered (decreased BP & blood sugar, increased blood K)
--increased blood sugar
--insomnia
--increased appetite/weight
--nausea & GI issues
--posterior subcapsular cataract
--higher risk of infection
--decreased wound healing
--dry nose/mouth
budesonide-formoterol
brand name: Symbicort
category: steroid + beta agonist
main action:
--budesonide prevents synthesis of pro-inflammatory markers in the airway
--formoterol promotes bronchodilation
MOA:
--budesonide inhibits phospholipase A2, resulting in decreased arachidonic acid available to make prostaglandins and other pro-inflammatory mediators
--formoterol stimulates beta 2 receptors to induce smooth muscle relaxation in the lungs
uses: COPD, bronchitis, emphysema
side effects:
--headache
--muscle tremors
--sore throat
--tachycardia
—Addisonian crisis if not tapered (decreased BP & blood sugar, increased blood K)
--increased blood sugar
--insomnia
--increased appetite/weight
--nausea & GI issues
--posterior subcapsular cataract
--higher risk of infection
--decreased wound healing
--dry nose/mouth
bupivacaine
brand name: Marcaine, Sensorcaine
category: amide-type anesthetic
MOA: reversible blockage of sodium channel from within the cell, preventing Na influx and thus depolarization
uses: epidural injection during childbirth or surgery, also used in dentistry
side effects:
--restlessness & tremor
--euphoria
--drowsiness & sedation
--vasodilation
--hypotension
--cardiac depression
--loss of muscle tone
bupivacaine-epinephrine
brand name: Marcaine Epi
category: amide-type anesthetic + direct sympathetic agonist
MOA: reversible blockage of sodium channel from within the cell, preventing Na influx and thus depolarization (bupivacaine) + vasoconstriction (epi)
uses: local anesthesia with bleeding control
side effects:
--restlessness & tremor
--euphoria
--drowsiness & sedation
--vasodilation
--hypotension
--cardiac depression
--loss of muscle tone
bupropion
brand name: Wellbutrin, Zyban
category: NDRI
MOA: blocks the reuptake of norepinephrine and dopamine, increasing synaptic concentrations of both
uses:
--depression
--anxiety
--nicotine addiction (smoking cessation)
side effects:
—headache
--agitation
--insomnia
--dry mouth
--seizures
calcium carbonate
brand name: Os-Cal, Tums
category: dietary supplement + antacid
main action: raises blood calcium level and neutralizes stomach acid
MOA:
--as an antacid, it acts as a buffer and neutralizes H+ ions to raise gastric pH levels, minimizing acidic damage
--as a supplement, it is absorbed by the small intestine with the help of vitamin D and circulates in the blood
uses:
--heartburn
--indigestion
--osteoporosis
--osteomalacia
--hypoparathyroidism
side effects:
—constipation
--upset stomach
--hypercalcemia
canagliflozin
brand name: Invokana
category: renal glucose reabsorption inhibitor
main action: decrease glucose reabsorption from renal tubules and thus increase glucose excretion
MOA: inhibit sodium glucose type 2 (SGLT2) transporters to inhibit glucose reabsorption
uses: type II diabetes
side effects:
--UTI
--genital yeast infection
captopril
brand name: Capoten
category: ACE inhibitor
main action: decrease blood pressure
MOA: blocks ACE enzyme in the lungs, preventing conversion of inactive angiotensin I into active angiotensin II, which keeps aldosterone from being released (resulting in vasodilation)
uses: hypertension
other important info: good BP drug for patients with diabetes and kidney issues
side effects:
—dry cough
--fetal/neonatal problems (contraindicated for pregnant patients!)
carbidopa-levodopa
brand name: Sinemet
category: decarboxylase inhibitor + dopamine agonist combo
main action: increase dopamine and reduce its breakdown to control movement
MOA:
--levodopa crosses the blood-brain barrier and is decarboxylated to form dopamine in the brain
--carbidopa irreversibly inhibits PLP, thus inhibiting the PLP-dependent decarboxylase enzyme AADC (but cannot cross the BBB, so acts peripherally to prevent L-dopa metabolism)
uses: Parkinson's disease
side effects: unusual or uncontrolled movements of the mouth, tongue, face, head, neck, arms, and legs
carboxymethylcellulose
brand name: Celluvisc, Refresh Plus
category: demulcents
main action: serve as the lubricant in artificial tears
MOA: increases viscosity to increase contact time of artificial tears on the cornea
uses: dry eye
carteolol
brand name: Ocupress
category: beta blocker (non-selective)
main action: decrease aqueous humor production to lower IOP (20-25%)
MOA: inhibits norepinephrine from binding to beta 1 and beta 2 receptors, which normally activate a stimulatory G protein to upregulate cAMP and protein kinase to increase the speed of the Na/K pump in NPCE
uses:
--POAG
--angle closure attacks
--hypertension
side effects:
--may have less side effects than other BBs! (but still the same in general)
--can also potentially reduce cholesterol
--reduced nocturnal bradycardia ("CART keeps your HEART beating at night")
--masks hypoglycemia
--bradycardia, arrythmia, hypotension
--cardiac arrest
--confusion, depression, headache
--can lead to tachyphylaxis
--respiratory failure
--cough
contraindications: DO NOT give to patients with COPD, asthma, hypotension, low pulse, or CHF
carvedilol**
brand name: Coreg
category: mixed alpha/beta antagonist
main action: decrease blood pressure
MOA:
--inhibits alpha 1 receptors to inhibit vasoconstriction, causing vasodilation
--inhibits beta 1 receptors in heart and kidney (and beta 2 in lungs), decreasing heart rate and renin secretion
uses: hypertension
side effects:
—labored breathing
--depression
--fatigue
--vivid dreams
--orthostatic hypotension
caspofungin**
brand name: Cancidas
category: echinocandin (anti-fungal)
main action: fungal cell wall synthesis inhibitor
MOA: non-competitively inhibits beta 1,3-glucan synthase, preventing synthesis of glucans for the fungal cell wall and causing an osmotic balance resulting in fungal cell lysis and death
uses:
--good for widespread or resistant fungal infections
--fungal keratitis, endophthalmitis, retinitis, choroiditis, optic neuritis (used if infection is resistant to other anti-fungals)
side effects:
—nausea & stomach pain
--liver problems (jaundice)
--dark urine
--clay colored stool
cefepime
brand name: Maxipime
category: β lactam/4th generation cephalosporin (antibiotic)
main action: inhibits cell wall synthesis
MOA: inhibits active site on transpeptidases (PBPs) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against almost exclusively gram (-)
uses:
--pseudomonas infections
--pneumonia
--UTI
--skin infections
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction (1% cross allergy with penicillin)
--GI upset
ceftazidime
brand name: Fortaz
category: β lactam/3rd generation cephalosporin (antibiotic)
main action: inhibits cell wall synthesis
MOA: inhibits active site on transpeptidases (PBPs) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against mostly gram (-) cocci and a little bit of gram (+)
uses:
--pneumonia
--gynecological infections
--bone/joint infections
--septicemia
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction (1% cross allergy with penicillin)
--GI upset
ceftriaxone
brand name: Rocephin
category: β lactam/3rd generation cephalosporin (antibiotic)
main action: inhibits cell wall synthesis
MOA: inhibits active site on transpeptidases (PBPs) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against mostly gram (-) cocci and a little bit of gram (+)
uses:
--various infections including respiratory, skin, soft tissue, UTI, ENT
--gonorrhea
--orbital cellulitis
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction (possible cross allergy with penicillin)
--GI upset
cefuroxime
brand name: Ceftin
category: β lactam/2nd generation cephalosporin (antibiotic)
main action: inhibits cell wall synthesis
MOA: inhibits active site on transpeptidases (PBPs) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against some gram (+) cocci and some gram (-)
uses:
--bronchitis
--sinusitis
--tonsilitis
--ear/skin infections
--gonorrhea
--UTI
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction (1% cross allergy with penicillin)
--GI upset
celecoxib
brand name: Celebrex
category: NSAID
main action: reduces inflammation
MOA: selectively inhibits COX-2 enzyme to inhibit production of pro-inflammatory prostaglandins
uses: headaches and general inflammation/pain
side effects:
—prolonged bleeding
--kidney/liver failure
--less likely to cause/exacerbate ulcers since it doesn't affect COX-1
cenegermin**
brand name: Oxervate
category: recombinant human nerve growth factor
main action: stimulates regeneration of sensory nerve and proliferation/growth of corneal epithelial cells, as well as promotes reflex tearing from the lacrimal gland
MOA: provides a recombinant form of human nerve growth factor (NGF) to act through specific receptors in the anterior segment of the eye to promote corneal innervation, cell proliferation, and tear secretion
uses: neurotrophic keratitis
cephalexin
brand name: Keflex
category: β lactam/1st generation cephalosporin
main action: inhibits cell wall synthesis
MOA: inhibits active site on transpeptidases (PBPs) in bacteria to prevent cross-linking of peptidoglycan to form the bacterial cell wall
spectrum: bactericidal against mostly gram (+) cocci and a little bit of gram (-)
uses:
--respiratory infections
--otitis media
--internal hordeolum
--preseptal cellulitis
--dacryoadenitis
side effects:
—susceptible to β lactamase and thus resistance
--allergic reaction (1% cross allergy with penicillin)
--GI upset
cetirizine
brand name: Zyrtec
category: 2nd generation antihistamine
MOA: competitively blocks H1 receptors to block inflammation mediated by histamine
uses: acute allergies & common cold
side effects:
--dry eye
--possible oculogyric crisis
--no anti-muscarinic side effects like with 1st gen
chloramphenicol**
category: antibiotic
main action: inhibits bacterial protein synstheis
MOA: reversibly inhibits the 50S ribosomal subunit to prevent bacterial protein synthesis
spectrum: bactericidal against meningitis causes; bacteriostatic against everything else
uses:
--bacterial conjunctivitis
--ear infections
side effects:
—aplastic anemia
--optic neuritis
--these are BAD, so not really used in the U.S. anymore!
chlorhexidine (topical)
brand name: Betasept, Biopatch, Calgon Vesta, ChloraPrep, Dyna-Hex, Hibiclens, Hibistat Towelette, Scrub Care Exidine, Spectrum-4
category: anti-protozoal (biguanide) + chemical preservative (amide)
MOA: positively charged cation binds to bacterial cell surface to disrupt cell membrane and destroy bacteria
uses:
--antiseptic hand sanitizer
--treatment for Acanthamoeba keratitis
--contact lens solution
side effects:
--can cause allergic reaction
chlorhexidine gluconate 1% + ethyl alcohol 61%
brand name: Avagard
category: chemical preservative (amide + alcohol)
MOA: positively charged cation binds to bacterial cell surface (chlorhexidine) and alcohol disrupts lipids to overall disrupt cell membrane and destroy bacteria
uses:
--antiseptic hand sanitizer
side effects:
--can cause allergic reaction
chloroquine
brand name: Aralen
category: anti-parasitic
MOA:
--inhibits lysosomal function and thus prevents breakdown of toxic heme byproducts in bacteria, eventually causing it to lyse and die
--inhibits phospholipase A2 (like steroids) to alter signaling and transcriptional pathways to inhibit immune activation
--binds to melanin with RPE cells, causing localized RPE damage and subsequent migration of RPE cells to the ONL and OPL
uses:
--malaria
--rheumatoid arthritis
--lupus
risks for ocular toxicity:
--dosing more than 2.3 mg/kg body weight
--treatment duration >5 years
--kidney/liver issues
--age >60
--high body fat
--concomitant retinal disease
side effects:
—toxic retinopathy (bull's eye maculopathy)
--vortex keratopathy
--blurry vision
--photophobia
--paracentral or central scotoma
--muscle problems
--loss of appetite
--diarrhea
--skin rash
chlorothiazide
brand name: Diuril
category: diuretic (thiazide)
main action: increase fluid excretion to reduce blood volume & BP
MOA: inhibits Na/Cl symporter in the distal tubule to decrease reabsorption of Na, resulting in more ions and water being excreted in urine
uses: hypertension
side effects:
—hypokalemia
--increased blood sugar
--increased blood lipids
--decreased insulin sensitivity
chlorpheniramine
brand name: Chlor-Trimeton
category: 1st generation antihistamine
main action: block the effect of pro-inflammatory markers like histamine
MOA:
--blocks H1 (and some H2) receptors (including those in the brain after crossing the blood brain barrier) to block inflammation mediated by histamine
--also has a partial anti-muscarinic effect
uses:
--allergies
--common cold
--sleep agent
--motion sickness
side effects:
—sedation
--mydriasis
--dry eye
--acute poisoning: paradoxical excitement, hallucinations, ataxia, incoordination, convulsions, coma, mixed pupils, cardiorespiratory collapse
chlorpromazine
brand name: Thorazine
category: typical antipsychotic
main action: alleviates positive symptoms of psychosis (e.g., delusions, hallucinations)
MOA: blocks dopamine (mostly, much less action against serotonin) from binding to its receptors in the mesolimbic and nigrostriatal pathways, preventing depolarization and leading to remodeling of the neurons which changes how they respond to dopamine
uses:
--schizophrenia
--bipolar disorder
--other psychoses
--nausea/vomiting
--hiccups
side effects:
—miosis
--photosensitivity
--pigmentation of skin, cornea, and lens
--cataracts
--extrapyramidal side effects (due to blockage of dopamine in nigrostriatal pathway): akathisia, acute dystonia, Parkinsonism, arrive dyskinesia
--FDA black box warning for increased mortality in elderly patients
--reduced emotions & social withdrawal
--cognitive deficits
--low energy/motivation
chlorpropamide
brand name: Diabinese
category: insulin secretagogue
main action: decrease blood sugar
MOA: binds to pancreatic beta cell receptors to inhibit K+ efflux, inducing depolarization which stimulates calcium influx through voltage-gated channels, inducing insulin release
uses: type II diabetes
side effects:
—this is a sulfonylurea, so contraindicated for sulfa allergy
--hypoglycemia
cholestyramine
brand name: Questran
category: bile acid sequestrants
main action: increase excretion of bile acids
MOA: binds to bile acids in the gut to prevent reabsorption and promote excretion, causing the liver to convert more cholesterol into bile acids
uses: high cholesterol
side effects:
—nausea
--constipation
--GI upset
--reduced drug/nutrient absorption (e.g., messes with fat soluble vitamins)
chymotrypsin
brand name: Catarase
category: dietary supplement
main action: protein digestion
MOA: supplements the normal protease enzyme that acts in the duodenum to break down proteins and polypeptides from the diet
uses: reduce redness and swelling associated with pockets of infection (abscesses), ulcers, surgery, or traumatic injuries
side effects:
—GI discomfort: gas, diarrhea, constipation, nausea
--allergy
cidofovir
brand name: Vistide
category: antiviral (nucleotide analog)
main action: inhibits viral DNA polymerase to reduce pain, shorten healing time, and reduce viral shedding
MOA: deoxycytosine derivative that is phosphorylated by viral and host cell kinases so that it can be incorporated into DNA to be taken up by viral DNA polymerase, thus inhibiting the enzyme from producing viral DNA
uses:
--ocular herpesvirus infections
--CMV retinitis
side effects:
—myelosuppression
--retinal toxicities
--nephrotoxicity (monitor BUN and creatinine
--nausea/vomiting
--fever
--abdominal pain/diarrhea
--hair loss
--rash
--anemia
--seizures
--these side effects are worse than acyclovir because human DNA polymerase can pick up these
cilostazol
brand name: Pletal
category: anti-platelet (blood thinner)
main action: prevent platelet aggregation
MOA: inhibits phosphodiesterase, which normally breaks down cAMP, therefore this leads to increased cAMP levels, which reduces calcium release and thus platelet activation
uses: decrease leg pain due to blood flow problem (since it promotes vasodilation and prevents clotting)
side effects: bleeding & bruising
cimetidine
brand name: Tagamet
category: H2 receptor blocker
main action: prevent gastric acid secretion
MOA: block H2 receptors located on gastric parietal cells, preventing histamine from stimulating HCl secretion (however, this does not prevent ACh or gastrin-stimulated acid secretion...just histamine-stimulated secretion)
uses:
--gastric ulcers
--GERD
--Zollinger-Ellison syndrome
--indigestion
--heartburn
side effects:
—diarrhea
--stomachache
--difficulty in absorbing minerals (e.g., iron deficiency, hypocalcemia)
ciprofloxacin
brand name: Ciloxan, Cipro
category: 2nd gen. fluoroquinolone (antibiotic)
main action: inhibits bacterial nucleic acid synthesis
MOA: inhibits DNA gyrase in gram (-) bacteria and DNA topoisomerase in gram (+) bacteria, which both normally prevent supercoiling of DNA, thus these inhibit DNA synthesis altogether
spectrum: bactericidal against most gram (-) with limited action against gram (+) and atypical bacteria
side effects:
—GI upset
--CNS symptoms: headache, dizziness, depression, insomnia
--black box warning: tendinitis/tendon rupture
--exacerbates muscle weakness in myasthenia gravis
citalopram
brand name: Celexa
category: SSRI
MOA: selectively blocks reuptake of serotonin (only) to keep more serotonin available in the synaptic cleft
uses: anxiety disorders, depression, bipolar disorder, OCD, bulimia, PTSD, phobias
side effects:
--takes 2-4 weeks to see therapeutic effect, so may experience increased anxiety in the meantime
--suicidal thoughts and behaviors
--headache
--blurry vision
--serotonin syndrome (high BP, tremor, fever, hyperthermia, CV collapse)
clindamycin
brand name: Cleocin
category: antibiotic
main action: inhibits bacterial protein synthesis
MOA: reversibly inhibits the 50S ribosomal subunit to inhibit bacterial protein synthesis
spectrum: bactericidal against gram (+) and most anaerobic bacteria, which are usually gram (-)
uses: respiratory infections
side effects: GI upset
clonazepam
brand name: Klonopin
category: benzodiazepine (anxiolytic & anti-convulsant)
main action: inhibit neural activity to provide a calming and sedative effect
MOA: binds to the GABA-A chloride channel receptor to facilitate the binding of GABA, resulting in increased Cl influx and thus more hyperpolarization and less depolarization, propagating the inhibitory effect of GABA
uses:
--anxiety & insomnia
--seizures
side effects:
—sedation & hypnotic effect
--nystagmus
--diplopia
--ataxia
--drowsiness
--amnesia
--increased hostility and irritability
--confusion in elderly
--vivid, disturbing dreams
clonidine
brand name: Catapres
category: sympathetic agonist
main action: inhibit vasoconstriction to lower blood pressure
MOA: stimulates alpha 2 receptors to stimulate inhibitory G proteins that inhibit norepinephrine release and thus inhibit vasoconstriction
uses: hypertension, ADHD
side effects:
--sedation
--dry mouth
--rebound HTN if discontinued abruptly
--dizziness/fainting
clopidogrel
brand name: Plavix
category: anti-platelet (blood thinner)
main action: prevents platelet aggregation
MOA: irreversibly inhibits platelet ADP receptor, which inhibits activation of glycoprotein IIb/IIIa receptors, which prevents platelet aggregation (platelets can't recognize the "SOS" signal sent by ADP)
uses: prevention of secondary stroke/MI if patient is high risk (since this is a very strong drug)
side effects:
--bleeding & bruising
--subconjunctival hemorrhages
--valsalva retinopathy
clotrimazole
brand name: Mycelex
category: imidazole (anti-fungal)
main action: disrupts fungal cell membrane stability
MOA: inhibits the conversion of lanosterol to ergosterol, which is the main component of fungal cell membranes, thus altering the stability of the membrane
uses:
--ringworm
--athlete's foot
--jock itch
--vaginal yeast infections
--yeast infections of mouth/throat
--ocular fungal infections
side effects:
--superficial punctate keratitis
—nausea
--diarrhea
--fever
--anorexia
--anemia
--possible liver injury
--interacts with statins and warfarin
cocaine**
category: sympathetic agonist & ester-type anesthetic (PABA derivative)
MOA:
--binds transporters to prevent reuptake of norepinephrine, dopamine, and serotonin
--reversible blockage of sodium channel from within the cell, preventing Na influx and thus depolarization
uses:
--local anesthetic for ENT surgeries
--diagnose Horner's pupil
side effects:
--anger/irritability
--paranoia
--decreased appetite
--euphoria
--extreme sensitivity
--headaches & seizures
cromolyn sodium
brand name: Crolom, Opticrom
category: mast cell stabilizer
main action: prevents release of histamine and pro-inflammatory markers
MOA: blocks calcium channels in mast cells, causing a decrease in Ca influx and thus preventing degranulation of mast cells so they can't release histamine
uses: chronic allergies & asthma management
side effects:
—headache
--nasal congestion
--stinging upon instillation
--acute swelling
cyanocobalamin
also known as: vitamin B12
MOA: absorbed by vitamin B12 specific plasma proteins (transcobalamin I & II) to enter cells, where it serves as a cofactor for two vital enzymes in the body: methylmalonyl-CoA mutase and methionine synthase (helps with DNA synthesis)
uses: vitamin B12 deficiency (e.g., pernicious anemia)
side effects:
—allergic reaction (esp. if cobalt allergy)
--acne, rosacea, rash
--shortness of breath
--pulmonary edema
--hypokalemia
--polycythemia
cyclobenzaprine
brand name: Flexeril
category: muscle relaxant
main action: relaxes muscles to relieve pain and discomfort
MOA: acts centrally (not on skeletal muscle or neuromuscular junction) to block 5-HT2 receptors, responsible for its anti-spasmodic effect
uses:
--strains, sprains, and other muscle injuries
--fibromyalgia & myofascial pain (off label)
--also antagonizes muscarinic receptors, similar to tricyclic antidepressants
side effects:
—drowsiness
--dizziness
--confusion
--tachycardia
--some anti-SLUDGE effects