Which drug is antagonistic at histamine, serotonin, and muscarinic receptors?
A. promethazine
B. terfenadine
C. cyproheptadine
D. hydroxyzine
Answer:C
Which drug is antagonistic at histamine, serotonin, and muscarinic receptors?
A. promethazine B. terfenadine C. cyproheptadine D. hydroxyzine