Antidepressants Flashcards
Serotonin syndrome
SSRIs when used with other antidepressants. Lethargy, restlessness, and confusion.
SSRIs
Fluoxetine, sertraline, paroxetine, citalopram, escitalopram, fluvoxamine.
Discontinuation Syndrome
Found in short half life SSRIs, SNRIs, and Selegiline. (Paroxetine, Sertraline). Dizziness, paresthesias, and anxiety.
TCA Overdose
Convulsions, coma, and cardiac arrythmia
Desipramine
TCA with weak anticholinergic effects, stronger NE reuptake inhibition. Used in neuropathic pain.
Amitriptyline
TCA that is highly anticholinergic, anti alpha one, and sedative.
Tranylcypromine
Irreversible MAO A and B inhibitors. Very bad side effects.
Venlafaxine
SNRI with weak NE and strong 5HT.
MAOI Side Effects
Most commonly orthostatic hypotension and weight gain. Consuming Tyramine can lead to a hypertensive crisis.
Neurotropic Depression Hypothesis
Lack of 5HT, NE, DA and lack of BDNF which supports healthy neurons.
SSRI side effects
1st Week: Nausea, GI irritation, diarrhea. Longterm: Sexual dysfunction (30-40%). Serotonin syndrome and Discontinuation syndrome.
Monoamine Depression Hypothesis
Lack of 5HT, NE, and DA
Duloxetine
SNRI with balanced NE and 5HT. Used for neuropathic pain.
Trazadone
Ayptical, blocks H1 receptor. Sedative effects without tolerance or dependence. Unlabeled hypnotic. Causes priapism
Selegiline
MAO B inhibitor at low dosages and nonselective at higher doses. Prone to sudden discontinuation syndrome. Can also be used in Parkinson’s.
TCAs
Used as antidepressants and for chronic neuropathic pain. Blocks both 5HT and NE reuptake.
MAOIs
First modern antidepressant, now last line. Inhibits MAO-A and B. A degrades NE, 5HT and DA. B degrades DA.
Imipramine
TCA with anticholinergic effects (Bedwetting) and strong 5HT and NE reuptake inhibition.
Phenelzine
Irreversible MAO A and B inhibitors. Very bad side effects.
TCA Side Effects
Dry mouth, constipation, urinary retention, and confusion. Sedation, weight gain. Delerium in the elderly and orthostatic hypotension.
Merazapine
Atypical. Blocks alpha 2 and increases 5HT and NE release. Antiemetic. Side effects: sedation, weight gain
Lithium
Used with antidepressants and anticonvulsants to treat bipolar disorder. Side effects: Tremors, hypothyroidism, Nephrogenic diabetes insipidus, acne, psoriasis. DO NOT USE WITH LOOP DIURETICS OR THIAZIDE.