Dermatitis/Psoriasis/Acne/Sunburn Pharmacology

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Last updated 11:40 AM on 10/5/26
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60 Terms

1
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Types of Topical MX

hydrocarbon

  • for driest skin

  • no water content→pure hydrocarbons

  • strong barrier

  • ex: vaseline

ointment

  • 80% hydrocarbon+20% water

  • strong barrier

  • common drug vehicle

  • ex: aquaphor

cream

  • for dry skin

  • more water than ointment

  • decent barrier

  • replenishes moisture

  • ex: cerave

lotion

  • for dry-normal skin

  • higher water content

  • good for hairy skin

  • slightly less drying than gels

  • ex: cetaphil

gel

  • for oily skin

  • highest water/alcohol content

  • good for young skin

  • strong protective topical agent

  • drying dosage form

  • ex:
    -aloe
    -cosmetic+drug products

solution

  • for oiliest skin

  • no oil content+some alcohol content

  • for large areas of skin

  • ex: witch hazel


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Topical Corticosteroids

MX:
highest
clobetasol propionate 0.05%
fluocinonide 0.01%

high
bethamethasone dipropionate 0.05% (high)
mometasone furoate 0.1%

high-medium
fluocinocide 0.05%

medium
triamcinolone actenoide 0.1%

mild
desonide 0.05%
fluocinolone acetonide 0.01%

lowest
hydrocortisone 0.5%
OTC hydrocortisone 1%
hydrocortisone 2.5%

MOA:
anti inflammatory
antipruritic
vasoconstrictive

ROA:
1st line for skin irritation
dosage→“finger-tip” unit (1st joint=adult hand)
don’t overuse→risks

AE:
local
skin thinning
pigment changes
telagniectasia
rosacea
delayed wound healing
irritation
burning
peeling

systemic
HPI suppression
iatrogenic cushing’s
peds→growth retardation
glaucoma

CI: overuse→skin thinning

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Ointments vs. Creams

ointment

  • mostly oil based

  • greasy+thicker consistency+occlusive

  • slower+stays on surface longer

  • difficult to spread evenly

  • dry skin conditions (ex: psoriasis)

cream

  • less oil based

  • lighter texture+consistency

  • water evaporates→faster

  • easier to apply→larger areas+less mess

  • wet/oozing skin conditions (ex: eczema)


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Atopic+Contact Dermatitis NP TX

moisturizers

  • emollients (lubricate+soften skin)
    -ceramides
    -dimethicone
    -squalene oil

  • occlusive agents (prevent water evaporation)
    -petrolatum
    -lanolin

  • humectants (attract+retain water)
    -hyaluronic acid
    -glycer
    -alpha-hydroxy acids (AHAs)

bathing

wet-wrap therapy

  • apply topical tx followed by wet bandages


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Atopic Dermatitis MX TX

1st line

  • NP tx

  • topical mid-high potency steroids x titrate as needed

  • itch→PRN antihistamines

2nd line

  • topical calcineurin inhibitors (TCIs)

  • topical phosphodiesterase-4 (PDE-4) inhibitor

  • aryl hydrocarbon receptor antagonist

  • phototherapy

allergy/ineffective/can’t use

  • PO cyclosporine

  • PO methotrexate

  • IL-4 antagonist

  • IL-13 monoclonal antibody

  • JAK1 inhibitors


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Topical Corticosteroids

MX: hydrocortizone 1%→OTC/lower potency
mometasone furoate 0.1%→high potency

I: acute inflammation→higher potency+lower potency (maintenance)

ROA:
OTC/lower potency→1-2x daily
high potency→daily

CI: don’t use longer than 2-4 weeks

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Topical Calcineurin Inhibitors (TCIs)

MX: tacrolimus
pimecrolimus

MOA: blocks calcineurin cytokines→decreased epidermis hyperproliferation

I: second line
short-term tx
intermittent tx

ROA:

  • BID x daily until lesion resolved

  • recurrent→2-3x per week

  • no occlusive dressing

  • takes weeks to work+continue using

tacrolimus

  • affected spot x 2x/day

pimecrolimus

  • smallest amount possible

  • wash hands after use

AE: headache
skin burns
pruritis
swelling
immunosuppression

CI:
BBW:
malignancy
under 2 y/o
avoid long-term use

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Topical Phosphodiesterase-4 (PDE-4) Inhibitor

MX: crisaborole

MOA: inhibits PDE-4→increased intracellular cAMP levels→reduces inflammation

I: mild-moderate atopic dermatitis
-adult
-3+ months
second line (can’t use topical corticosteroids)

ROA: thin film to affected areas x 2x/day

AE: hypersensitivity rxn
application site pain (burning/stinging/etc.)
URI
nasopharyngitis
no long-term effectiveness after 1 year

pruritis:
few days after start of tx
further clearings after 1 wk

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Topical PDE4 Inhibitor

MX: roflumilast

MOA: similar to potent corticosteroids

I: 6+ y/o

ROA: daily
-cream
-foam

AE: rare (~1%)
diarrhea
headache
insomnia
application site pain
URI
UTI

CI: moderate/severe liver impairment
CYP3A4
CYP1A2

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IL-4 Antagonist/Monoclonal Antibody

MX: dupilumab

I: 6+ months
moderate-severe atopic dermatitis
-no tx with topical mx
-can be used w/w.o. topical steroids

ROA:
1st dose→600mg SQ
maintenance dose→300mg SQ

AE: injection site rxn
hypersensitivity rxn
conjunctivitis
eye issues
alrthralgia
rhinosinusitis

CI: live vaccines
pregnancy

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Adbry/Trakilumab

MX: SQ biologic

MOA: blocks IL-13

I: over 12+ y/o
uncontrollable moderate-severe atopic dermatitis
-no tx with topical mx

ROA:
1st dose: 4 injections
maintenance dose: 2 injections x biweekly
can do normal vaccinations

AE: URI
eye+eyelid inflammation
injection site rxn
eosinophilia

CI: live vaccines

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JAK1 inhibitors

MX: upadacitinib
abrocitinib

I:
U: adults
12+ y/o
uncontrollable moderate-severe atopic dermatitis
-not controlled with systemic+biologic mx

A: adults
uncontrollable moderate-severe atopic dermatitis
-not controlled with systemic+biologic mx

ROA: PO

AE:
U: URI
herpes zoster
herpes simplex
bronchitis
nausea
cough
pyrexia
acne
etc.

A: cold
nausea
headache
herpes simplex+cold sores
increased creatine phosphokinase
dizziness
URI
etc.

CI:
U: pregnancy
lactation
hepatic impairment
GI perforations

black box:
increased opportunistic infection→do TB test before starting
50 y/o+RF→sudden CV death
increased MI/CHF/stroke risk
increased malignancy risk
increased thromboembolic event risk
increased cholesterol
retinal detachment
RBC/neutrophil/lymphocyte/platelet changes

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Psoriasis TX Overview

chronic→lifelong tx

no universal tx formula→many tx options

switching tx is common

combination of tx is common

low pt adherence

location of body affects tx choice
-ex: scalp only

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Psoriasis TX Factors

effectiveness of tx

AE+long-term risks

comorbidity (psoriatic arthritis)

severity

mx CIs

pt adherence

cost

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Psoriasis TX Approaches

monotherapy

  • mild-moderate

  • tx fail/toxicity→mx combination/rotation/sequencing tx

  • older agents→higher dose toxicity

  • newer agents→safer

combination therapy

  • lower dose of each agent

  • more dangerous mx can be discarded→safer mx used for mtn tx

  • both RF of mxs carried

sequential therapy

  • transitions from initial rapid tx→long-term tx

  • old


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Psoriasis TX (General)

1st line:

  • moisturizer

  • NP tx

  • high-potency topical steroids

2nd line:

  • 1-week rest from topical corticosteroids→repeat topical corticosteroids x 2 cycles

  • high-potency topical corticosteroids 2x/week+vitamin D analog BID

3rd line:

  • dermatologist referral
    -UVB
    -antimetabolites
    -entanercept
    -psoralens+UVA light tx


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Psoriasis NP TX

decrease stress

avoid irritants
-sensitive skin products
-fragrance-free soaps

skin protection
-loose-fitting garments
-skin wraps
-SPF 15+
-sunburn→exacerbation

moisturizers
-apply throughout day
-fragrance free

oatmeal baths

stop smoking

UVA
UVB
narrow UVB
PUVA

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Psoriasis MX TX

mild-moderate:
topical→topical+phototherapy→topical+systemic

moderate-severe:
systemic+topical/phototherapy→more-potent systemic+topical/phototherapy→biological response modulator (BRM)+other mx

all dx:
moisturizers PRN
continue current tx if controlled
step down to lowest effective dose/potency

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Mid-High Potency Topical Corticosteroids

MOA: anti-inflammatory
anti-proliferative
immunosuppression
vasoconstriction

I: mild-moderate psoriasis (m/c)

ROA: thin layer x OID/BID

AE: acne
skin atrophy
contact dermatitis
fungal infection
rosacea
striae

CI: tachyphylaxis
abruptly stop tx→rebound flares
more than 4+ weeks
high potency→BID up to 2-4 wks→reduce dosease
limit use as much as possible

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Topical Vitamin D Analogs

MX: calcipotriene
calcipotriol

MOA: binds to vitamin D receptors→inhibits keratinocyte production+enhances keratinocyte differentiation→reduces lesions

I: psoriasis

ROA:
C: BID x 6-8 weeks
time to response→2-4 wks

AE: skin peeling
skin dryness
hypercalcemia
rash

CI: hypercalcemia
vitamin D toxicity

tachyphylaxis
less effective than mid-potency topical steroids
used with topical steroids→enhance efficiency+reduce steroid atrophy
lesions gone in 4-6 weeks

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Topical Retinoids

MX: tazarotene

MOA: modulates epithelial differentiation→decreases hypoproliferation→decreases inflammation

I: psoriasis
acne

ROA: daily HS x 8-12 weeks
allow to air dry
may get worse before getting better
1 wk→some reponse
clearing→8 wks

do not use

  • around eyes

  • in skin folds

  • genitalia

AE: erythema
itching
burning

CI: UVB stronger
pregnancy
photosensitizing agents
topical irritants
PO vitamin A

AE TX:
-reduce concentrations
-switch to cream tazarotene
-use moisturizers
-vary application sites
-short contact time

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Topical PDE4 Inhibitor

MX: roflumilast

MOA: similar to potent corticosteroid

I: psoriasis
12+ y/o

ROA: once daily

AE: diarrhea
headache
insomnia
application site pain
URI
UTI

CI: moderate-severe liver impairment
CYP3A4
CYP1A2

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Aryl Hydrocarbon Receptor Antagonist

MX: tapinarof

MOA: decreases IL-17

ROA: daily

AE: folliculitis
nasopharyngitis
contact dermatitis
headache
pruritis
influenza
no systemic absorption

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Methotrexate

MOA: t-cell gene expression affects→anti-inflammatory+cytostatic effects

I: moderate-severe psoriasis

ROA:
initial:
2.5-5 mg PO/week→normal DX→7.5-25 mg PO/week
increase 2.5 mg Q 2-4 weeks

single dosage
GI ADE→divided dosage

AE: nausea
vomiting
mucosa ulcers
headaches
anemia

severe: hepatotoxicity
pulmonary fibrosis
bone marrow toxicity
immunosuppressive
increased levels of digoxin

DX: CBC
renal function
hepatic function
pulmonary toxicity
pregnancy test (avoid in pregnancy)

CI: pregnancy
lactation
renal disorders
hepatic disorders
leukopenia

4+ weeks for tx response
+folic acid supplementation
no abrupt discontinuation

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Cyclosporine

MOA: inhibits production+release of IL-2→inhibits activation of resting T-lymphocytes

I: psoriasis
mono tx
or
combination tx

ROA: PO Q2 divided doses
increase dose Q2-4 weeks
short term→12 weeks intermittent
relapse→restart at previous dose
max use→1 year

AE: impaired renal function
HTN
hypertriglycemia
hypomagnesia
hyperuricemia
hypertrichosis

DX: BP
SCr
-baseline+biweekly x 12 weeks→x monthly

CI: pregnancy
CYP3A4
over 1+ year use

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Systemic Non-Biologic Phosphodiesterase 4 (PDE-4) Inhibitors

MX: apremilast

MOA: unknown
reduced inflammation

I: mild-severe psoriasis
adults

ROA: 5 day titration→BID
renal impairment→daily

AE: diarrhea (first 2 weeks→20%)
nausea
URI
headache
65+ y/o→dehydration
depression+worsening
weight loss

DX: no baseline screening
monitor labs
weight loss→5%+ from baseline→discontinue

CI: weight loss
CYP450

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Systemic Non-Biologics Selective TYK2 Inhibitor (SOTYKTU)

MX: Deucravacitinib

MOA: TYK2 pairs with JAK1/JAK2→mediates cytokine pathways→produces pro-inflammatory cytokines+IL-17

I: moderate-severe plaque psoriasis
adults

ROA: PO daily

AE: URI
blood creatine phosphokinase increase
HSV
mouth ulcers
folliculitis
acne

DX: triglycerides
liver enzymes
creatine phosphokinase
TB
infection risk
viral reactivation

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TNF-Alpha Inhibitors

MX: etanercept
adalimumab
infliximab
certolizumab pegol

MOA: binds to TNF-alpha→blocks activity→blocks excess production in skin→stops inflammatory cycle of psoriasis

I: psoriasis
E: 4+y/o

ROA:
E:
initial→SQ BID x 12 weeks
mtn→SQ weekly

I:
IV Q2-3 hours x weeks 0,2,6→continuous IV Q8 hours

A:
week 1-2→SQ
week 3+→SQ x 2 weeks

CL-P:
SQ biweekly

can be used with topicals/phototherapy

AE:
E: injection site reaction
headache
URI
GI sx

severe: hep b reactivation
CHF+worsening

I: hemolytic abnormalities
hepatotoxicity
hypersensitivity
eye toxicity
CHF+worsening

A: hemolytic abnormalities
injection site rxn (itchy rash)

CL-P: URI
rash
UTI

DX: baseline
TB PPD x yearly
CBC x periodic
LFT

BB: serious infections
lymphoma malignancy
lupus
demyelinating disorders
give live vaccines before tx

TB testing
hepatitis B+C testing
injections

CI: live vaccines
malignancy
active infxn
lithium
antimalarials
beta blockers
systemic interferon mxs
alcohol
stopping systemic corticosteroids

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IL-12+23 Inhibitors

MX: ustekinumab

MOA: selectively targets IL-12+23

I: psoriasis inflammation
12+ y/o

ROA: SQ x weeks 0,4+ Q every 12 weeks after

AE:
URI
headaches
fatigue

serious:
serious infxns
malignancies
RPLS

DX: TB testing
hepatitis B+C testing
injections

CI: live vaccines
malignancy
active infxn
lithium
antimalarials
beta blockers
systemic interferon mxs
alcohol
stopping systemic corticosteroids

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IL-17 Inhibitors

MX: ixekizumab
secukinumab
brodalumab

MOA: inhibits IL-17→blocks pro-inflammatory cytokines+chemokines

I: psoriasis
Ix→6+ y/o

ROA:
Ix:
SQ x weeks 0,2,4,6,8,10,12
weeks 13+→SQ q4 weeks

Sc:
SQ x weeks 0-4
weeks 5+→SQ q4 weeks

Br:
SQ x weeks 0-2
weeks q2 weeks

AE:
Ix: injection site rxn
URI
nausea
tinea infxns

Sc: nasopharyngitis
diarrhea
URI

Br: arthralgia
headache
fatigue
diarrhea
oropharyngeal pain
nausea
myalgia
injection site rxn
influenza
neutropenia
tinea infxns

DX: TB testing
hepatitis B+C testing
injections

CI: live vaccines
malignancy
active infxn

inflammatory bowel disease
lithium
antimalarials
beta blockers
systemic interferon mxs
alcohol
stopping systemic corticosteroids

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IL-17A+17F Inhibitors

MX: bimekizumab

MOA: inhibits IL-17A+17F from IL-23+23-independent sources→decreased psoriasis inflammation

I: adults
moderate-severe plaque psoriasis

ROA:
SQ x weeks 0,4,8,12,16
weeks 18+→SQ q8 weeks

120 kg+→weeks 16+→SQ q4 weeks

AE: nasopharyngitis
URI
injection site rxns
PO candidiasis

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IL-23 Inhibitors

MX: tildrakizumab-asmn
risankizumab-rzaa
guselkumab

MOA: inhibits IL-23 receptor interaction→stops inflammation+immune response

ROA:
t-a:
SQ x weeks 0-4
weeks 5+→SQ q12 weeks

r-r:
SQ x weeks 0-4
weeks 5+→SQ q12 weeks

g:
SQ x weeks 0-4
weeks 5+→SQ q8 weeks

AE:
t-a: URI
injection site rxn
diarrhea

r-r: URI
headache
fatigue
injection site rxns
tinea infxn

g: URI
headache
injection site rxns
arthralgia
bronchitis
diarrhea
gastroenteritis
tinea infxns
HSV infxns

DX: TB testing
hepatitis B+C testing
injections

CI: live vaccines
malignancy
active infxn
lithium
antimalarials
beta blockers
systemic interferon mxs
alcohol
stopping systemic corticosteroids

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Acne NP TX

facial cleanser

avoid picking/popping

water-based/non-comedonegic/fragrance-free moisturizers+cosmetics

limit sugar+dairy intake

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Acne MX TX Options

OTC:

  • benzoyl peroxide

  • salicylic acid

  • differin

RX:

  • retinoid

  • abx

  • other topicals


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Acne MX TX Algorithm

1st line:

  • topical comedolytic ±topical abx

2nd line

  • add PO abx

  • consider PO contraceptives

3rd line

  • PO isotretinoin

  • dermatology consult


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Benzoyl Peroxide (BPO)

MX: OTC agent
Rx agent

MOA: increases epithelial cells sloughing rate→loosens follicular plug+comedolytic+bactericidal to c. acnes

I: C. acnes
acne

ROA:
1st week→daily
weeks 2+→BID
start with 2.5-5%→avoids skin irritations

AE: drying
erythema
peeling
bleached hair
bleached clothing
photosensitivity→burns easier

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Salicylic Acid

MX: OTC agent
Mx pads

MOA: increases epithelial cell sloughing rate→loosens follicular plug

I: acne

AE: drying
erythema
peeling

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Topical Retinoids

MX: Rx→tretinoin
OTC→adapalene

MOA: decrease epidermal cell cohesion→increases epidermal cell turnover→open comedomes expelled+closed comedomes converted to open

I: acne

ROA: daily HS (in evening)
~20 minutes post washing face→don’t wash off until morning
sensitive skin→start every other day/15-30 minutes then wash off→lower with continued use
waxing→stop 3 days prior

AE: burning
erythema
dryness
peeling
photosensitivity

CI: salicylic acid scrubs→worsens irritation
mild soap BID only
pregnancy

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Azelaic Acid

MX: OTC
Rx

MOA: increases epithelial cell sloughing rate→loosens follicular plug

I: mild acne

ROA:
1st week→alternate application days
weeks 2+→BID

AE: drying
erythema
irritation
dark skin→hypopigmentation

CI: none

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Topical Antibiotics

MX: clindamycin
minocycline
erythromycin
dapsone
+benozyl peroxide

MOA: bactericidal→decreases levels of C. acnes→decreased leukocyte+monocyte attraction→reduced inflammation

I: acne→C. acnes

ROA: OTC
daily/BID
BP+D→orange discoloration
use BP before using C/M→prevent resistance
don’t use as monotherapy

AE:
BP
dryness
irritation
erythema

bleach

  • hair

  • towels

  • clothing

D
methemoglobinemia
erythema
sinusitis
select pts→hemolysis

C+M
colitis/enteritis

CI: none

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Oral Antibiotics

MX:
1st line→doxycycline
2nd line: bactrim
erythromycin
tetracycline
minocycline
sarecycline

MOA: decreases C. acnes→inhibits bacterial lipases→suppresses neutrophils→decreases inflammation
inhibits neutrophil activity
stops follicular plugging

I: acne→C. acnes

ROA: PO x daily/BID
don’t use as monotherapy

AE: photosensitivity
GI upset
blood dyscrasias

CI: tetracyclines+pregnancy→fetal dmg
long term use→resistance
under 12 y/o

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Oral Retinoic Acid Derivatives

MX: PO isotretinoin (acutane)

MOA: vitamin A derivative
inhibits sebum synthesis→decreases C. acnes concentration→decreases inflammation+comedolytic effects
not fully understood
decreases sebaceous gland size+sebum production
decreases follicular obstruction
decreases bx

I: severe acne→C. acnes

ROA: PO BID x 20-24 wks
2nd round of tx→6-month break

DX:
baseline x every month

  • CBC

  • LFT

  • chemistry panel

  • lipid panel

female→monthly pregnancy tests
iPledge registration

AE: excessive skin+mucous membrane dryness
bone density effects
muscle aches
visual disturbances
hepatic effects

CI: teens before puberty ends
pregnancy

Black Box: birth defect
increased aggressive+violent behavior

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PO Contraceptives

MX: hormonal agents

MOA: inhibits androgen production→decreases androgens in sebaceous glands
3 months for tx to be apparent→6 months for maximum efficiency

I: C. acnes

ROA: PO daily

AE: nausea
vomit
headache
weight gain
breast tenderness
thromboembolic risk

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Spironolactone

MX: hormonal agents

MOA: aldosterone receptor antagonist/androgen blcoker
antiandrogen effects
3 months tx apparent→6 months maximum tx efficacy

I: C. acnes
females+hormonal acne on jawline

ROA: PO x daily+titration

AE: hyperkalemia
gynecomastia
dry mouth
GI upset
dizziness

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Acne Maintenance TX/Follow-Up

follow up→ 3-4 months after starting tx

PO abx→6-12 weeks

topical acne:
indefinite/forever use
preferred long-term mx

relapse→re-initiate tx with previous regimen/at least some of its elements

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Sunburn Prophylaxis

stay out of sun when it’s strong (10AM-4PM)

sit in shaded areas

wear protective clothing

broad-spectrum sunscreen:
where skin is exposed
UVA→aging+SQ damage
UVB→burning

pt education:

abx:
-ciprofloxacin
-dapsone
-tetracyclines

hydroxychloroquine
furosemide
NSAIDS
retinoids

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Sunscreen+Time to Burn (TTB)

MX:
ingredients:

  • avobenzone

  • octisalicylate

  • oxybenzone

  • sulisobenzone

  • titanium oxide

  • zinc oxide

  • octinoxate

  • octocrylene

  • homosalate


I: sunburn prophylaxis

AAD recommendations:

  • minimum SPF→15-30

  • must reapply q2 hours

  • reapply after swimming/sweating after 40-80 minutes

  • u6m/o→keep out of sun


time to burn (TTB)

SPF x TTB (no sunscreen) = TTB (with sunscreen)

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Sun Protection Factor (SPF)

a measure of how well sunscreen deflects UVB rays

TTB (with sunscreen in minutes)=SPF x TTB (without sunscreen)

how SPF works:

  • 10 minutes→SPF of 5→50 (10×5=50)

  • intensity of the sun varies during day

  • sunscreen doesn’t last more than a couple of hours


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Sunburn Supportive Care TX

cool baths/showers

aloe vera

soy moisturizer/products

colloidal oatmeal boath

inflammation/pain→aspirin/ibuprofen

drink extra water

blisters→allow blisters to heal+don’t pop→petroleum jelly

protect sunburned skin

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Contact Dermatitis Tx

1st line

  • NP tx

  • topical corticosteroids

  • PO antihistamines

2nd line

  • increase steroid potency

3rd line

  • PO corticosteroids


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Topical Antihistamines

MX: diphenydramine

MOA: decreases release of chemical mediators
antipruititc
vasoconstriction

I: contact dermatitis

ROA:

  • “fingertip amount”

  • hydrated skin→increased mx penetration

AE:

  • burning

  • itching

  • hypopigmentation

  • folliculitis


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PO Antihistamines

MX: diphenydramine
hydroxyzine

cetirizine
fexofenadine

MOA: decreases release of chemical mediators
antipruitic
vasoconstriction

I: contact dermatitis

AE:

  • hyperglycemia

  • HPA

  • axis suppression

  • fluid retention

  • HTN

  • psych disturbances

  • GI ulcers

  • osteoporosis

  • infxn

CI: drowsiness

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Refractory Atopic Dermatitis Mx Tx

PO corticosteroids

  • daily prednisone equivalent

PO calcineurin inhibitor

  • cyclosporine

antimetabolites

  • methotrexate

immunosuppressants

  • azathioprine

  • mycophenolate

monoclonal antibodies

  • dupillumab (dupixent)

  • tralokinumab (adbry)


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Contact/Atopic Dermatitis Special Populations Tx

pediatrics

greater absorption→use least potent topical corticosteroid

geriatrics

topical corticosteroids→cause skin atrophy

pregnancy

  • systemic txs→harm to fetus

  • no methotrexate


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Coal Tar Products

MOA: decreases DNA synthesis
anti-inflammatory
antipruitic

ROA: dissolves in water→affected area submerged
3-7x per week x 30-45 days

AE: odorous

stains

  • clothing

  • skin

  • tubs

  • sinks

CI: photosensitivity

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Psoriasis Combination Txs

betamethasone 0.064%+calcipotriene 0.005%

halobetasol propionate 0.01%+tazarotene 0.045%

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Combination Topical Antibiotics

erythromycin 3%+benzyl peroxide

clindamycin 1%+benzyl peroxide 5%

clindamycin 1/2%+tretinoin 0.25%

adapalene 0.1%+benzyl peroxide 2.5%

adapalene 0.3%+benzyl peroxide 2.5%

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iPLEDGE REMS Program

isotretinoin (acutane)→teratogenic

healthcare providers+pharmacies must be enrolled

  • 2 negative pregnancy tests prior to initiation+2 forms of birth control for 30 days

  • 1 negative test x monthly

  • continue 1 month after discontinuation


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Oral Contraceptives Mx List

ethinylestradiol

levonorgestrel

norgestimate

drospiremone

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Photosensitivity-Inducing Mxs

diuretics

  • hydrochlorothiazide (HCTZ)

  • furosemide

NSAIDS

  • naproxen

  • ibuprofen

  • ketorolac

fluoroquinolones

  • levofloxacin

  • ciprofloxacin

  • moxifloxacin

antiarrhythmics

  • amiodarone

tetracyclines

  • doxycycline

  • tetracycline

antifungals

  • voriconazole

antidepressants

  • SSRIs

  • SNRIs

  • TCAs