Overview of Benzodiazepines and Depressants
Benzodiazepines are classified as depressants, also known as "downers."
Characteristics of depressants:
Lower neurotransmission levels
Decrease electrical activity of brain cells
Reduce arousal and calm the brain
Dependence and Withdrawal
There can be issues with dependence and withdrawal symptoms when discontinuing these medications.
Slow Discontinuation: It is critical to taper off medications to avoid severe withdrawal symptoms.
Tolerance: Patients may develop a tolerance, requiring higher doses for the same effect.
Addiction: Dependence can lead to addiction.
Uses of Benzodiazepines
Common uses include:
Management of seizures
Treatment of insomnia
Anxiety disorders
Regular Dosing: Regular administration is crucial in ensuring therapeutic effectiveness.
Monoamine Oxidase Inhibitors (MAOIs)
MAOIs are distinct from traditional antidepressants, addressing different forms of depression.
They are effective in treating:
Panic disorder
Social phobias
Atypical depression features
Mechanism of Action:
Inhibit the enzyme monoamine oxidase, raising neurotransmitter levels (serotonin, norepinephrine, dopamine).
Dietary Restrictions with MAOIs
Patients must avoid foods high in tyramine, including:
Aged cheeses
Chocolates
Cured meats (e.g., sausage)
Pickled vegetables
Alcoholic beverages
Tyramine-rich foods can cause severe hypertension crises when ingested by patients on MAOIs.
Mechanism of Reaction: Fermentation, aging, and curing processes increase tyramine levels in foods.
Adverse Effects of MAOIs
Potential side effects include:
Muscle jerking
Hypotension
Paresthesia
Sexual dysfunction
Weight gain
Dry mouth
Diarrhea
Irritability and agitation
Orthostatic Hypotension: Patients should change positions slowly to avoid lightheadedness.
Complementary and Alternative Medicines (CAMs)
Importance of acknowledging CAMs when prescribing medications:
Certain CAMs can interact negatively with benzodiazepines and MAOIs, leading to increased risk of side effects or decreased efficacy.
Non-Pharmacological Sleep Aids
Recommended alternatives to medications for sleep include:
Warm baths
Quiet music
Warm fluids
Avoiding caffeine before bedtime
Safety Precautions for Benzodiazepines
Patients should not operate machinery or drive when on benzodiazepines due to risks of sedation and drowsiness.
Important note to differentiate between benzodiazepines:
Lorazepam vs. Alprazolam, as they have different indications (anxiety vs. insomnia).
Use of Ginger as CAM
Uses: Treats nausea related to pregnancy, surgery, and chemotherapy, as well as motion sickness and diarrhea.
Adverse Effects: Includes gas, bloating, heartburn, and nausea.
Ginkgo Biloba
Uses: Treats several ailments including asthma, memory improvement, and sexual dysfunction.
Risks: Increases bleeding risk, especially in patients taking anticoagulants and can lead to severe reactions.
Ginseng
Uses: Boosts immunity and stamina, treats erectile dysfunction, and lowers blood pressure.
Adverse Effects: Linked to headaches, GI problems, and menstrual irregularities.
Hawthorn
Uses: Heart failure treatment and digestive issues.
Risks: Can cause nausea, headache, and dizziness, while interacting negatively with various medications.
Turmeric
Uses: Anti-inflammatory and antioxidant properties; commonly used for digestive issues and gallstones.
Adverse Effects: Nausea or diarrhea in high doses.
Echinacea
Uses: Popular for colds and flu.
Adverse Effects: Mainly GI-related and allergic reactions.
Kava Kava
Uses: Aids relaxation and anxiety relief.
Risks: Avoid when operating machinery due to sedative effects; long-term use can lead to skin and liver issues.
Nursing Considerations with Herbal Supplements
Always verify with health care providers when patients are using CAMs, especially in combination with prescription medications.
Caution when prescribing herbal supplements to pregnant women or infants; safety profiles may not be well-understood.