TCAs Flashcards
Tertiary amines
Amitriptyline
Clomipramine
Imipramine
Doxepin
Amoxapine
Secondary amines
Desipramine
Nortriptyline
Maprotiline
MOA of TCAs
Inhibits reuptake of both serotonin and NE which leads to increased concentration of these neurotransmitters in the synapticc elect
indications for TCAs
depression
insomnia
neuropathies
pain disorders
Insomnia and anxiety due to sedating effects
What TCA is approved for OCD
Clomipramine (if older than 10)
ADE of TCAs
Anticholinergic MC
sedation/drowsiness, increased appetite, weight gain, confusion (due to antihistamine effects)
Orthostatic hypotension, dizziness (due to alpha-1 adrenergic receptor blockade)
sexual dysfunction
prolonged QT interval
What is the best indicator for an overdose of TCA
prolonged QT interval
Overdose 3C’s for TCAs
Cardiotoxicity
Coma
Convulsions (lowers seizure threshold)
How do you treat cardio toxicity from TCAs
sodium bicarbonate
which TCAs are the most anticholinergic
Amitriptyline
Doxepin