All of the following are true about Ondansetron except?: (A) Drug of choice for chemotherapy induced vomiting, (B) Dopamine antagonist, (C) 5HT3 antagonist, (D) Acts on CTZ
Answer is B. Ans. is 'b' i.e., Dopamine antagonist Ondansetron is 5-HT3 receptor antagonist at CTZ and NTS, as well as in GIT.