Which of the following drugs is not an antiemetic? (AIIMS May 2011)
· Cinnarizine is an anti-vertigo drug.
· Metoclopramide and domperidone are antiemetic drugs. These act by blocking D2 receptors.
· Ondansetron is an antagonist of 5 HT3 receptors. It is the drug of choice for chemotherapy induced vomiting.