A drug that acts as a 5-hydroxytryptamine receptor antagonist is?

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A ❏ cinnarizine

B ❏ promethazine

C ❏ hyoscine

D ❏ ondansetron

E ❏ betahistine

9 COMMENTS

  1. D is the answer, all participants got the answer.We are supposed to reward Eze and Uche, but since Eze was just announced winner of the previous question, we would since his permission to cede the credit to Uche and Uchenna Martins.
    Ondansetron is an antagonist at the 5-hydroxytryptamine receptor (5HT3
    antagonist) within the serotonergic system. Cinnarizine, promethazine and
    betahistine are antihistamines. Hyoscine is an antimuscarinic agent.

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