If a Patient Asks How Does the 5-HT Receptor Antagonist

Multiple Choice

If a patient asks how does the 5-HT receptor antagonist ondansetron (Zofran) act on the body to stop the nausea of cancer chemotherapy,you can simply state that it is an agent that is able to:

A) Return the acidity in your stomach back to normal limits.
B) Block central nervous system trigger zones so that nausea cannot be induced.
C) Act somewhat as an antihistamine might act.
D) Slow the natural wave motion of the stomach and intestine to make it less sensitive.