Typical Anti-psychotics (exam 2) Flashcards
Typically Dopamine 2 receptor blockers Potency as an anti-psychotics correlates to ability to block D2 DARPP-32 is inhibited by D2, so if D2 is blocked, DARPP stays around longer, and less dopamine is phophatase'd (helps neuron signal carry through)
Chlorpromazine (thorazine)
-phenothiazide
-aliphatic
-fall in-between for potency and side effects (extra-pyramidal/ANS/sedation)
TOX:
-pigmented cornea (whirl), stellate lens, photosensitivity (rash)
-extrapyramidal issues: Parkinsonism, tardive dyskinesia, elevated prolactin,
anti-muscarinic, anti-adrenergic,
Trifluoperazine (stelazine)
-phenothiazide
-piperazine
-most potent
-most likely to cause extra-pyramidal effects
-least likely to cause sedation/ANS effect
-TOX:
-extrapyramidal issues: Parkinsonism, tardive dyskinesia, elevated prolactin,
anti-muscarinic, anti-adrenergic,
Thioridazine (mellaril)
-phenothiazide
-piperadine
-least potent
-more likely to cause sedation and ANS effects; acts like antimuscarinic
-low likelihood of extra-pyramidal effect
TOX:
-pigmentation of retina
-extrapyramidal issues: Parkinsonism, tardive dyskinesia, elevated prolactin,
anti-muscarinic, anti-adrenergic,
Haloperidol (Haldol)
-butyrophenone
-similar to trifluoperazine:
-potent, high risk to cause extrapyramidal effects and low likelihood of sedation/ANS effect
TOX:
-HIGH RISK extrapyramidal issues: Parkinsonism, tardive dyskinesia, elevated prolactin,
anti-muscarinic, anti-adrenergic,
Promethazine (phenergan)
- anti-psychotic that also has anti-histamine effects
- used as an anti-motion sickness medication