A patient with creatinine clearance of 13 mL/min is nauseated with two episodes of vomiting. Which antiemetic is most appropriate?

A patient with creatinine clearance of 13 mL/min is nauseated with two episodes of vomiting. Which antiemetic is most appropriate?

• A. Metoclopramide
• B. Prochlorperazine
• C. Ondansetron
• D. Aprepitant

Answer: (C)

In severe renal impairment, choose an antiemetic that won’t accumulate and has a low risk of CNS or cardiac adverse effects. Ondansetron is favored because it is primarily metabolized by the liver and its use does not require dose adjustment in kidney failure. This minimizes the risk of drug accumulation and related side effects such as extrapyramidal symptoms or excessive sedation that can occur with metoclopramide or prochlorperazine in renal disease. Aprepitant, while an effective antiemetic, is hepatically metabolized and carries significant drug interactions, making it less ideal for acute vomiting in someone with kidney failure. Thus, ondansetron provides effective relief with a safer renal profile in this context.

In severe renal impairment, choose an antiemetic that won’t accumulate and has a low risk of CNS or cardiac adverse effects. Ondansetron is favored because it is primarily metabolized by the liver and its use does not require dose adjustment in kidney failure. This minimizes the risk of drug accumulation and related side effects such as extrapyramidal symptoms or excessive sedation that can occur with metoclopramide or prochlorperazine in renal disease. Aprepitant, while an effective antiemetic, is hepatically metabolized and carries significant drug interactions, making it less ideal for acute vomiting in someone with kidney failure. Thus, ondansetron provides effective relief with a safer renal profile in this context.