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How to cite using AMA in the health sciences

This guide covers the basics of the American Medical Association's (AMA) citation style.

Format, example and tips - The Merck Index Online

Drug Monograph - elements to include and formatting

Drug Name. In: Specific database title. Publisher. Publication date (if available). Updated date. Accessed date. URL (no period after the URL)

Topic - Example

  1. Vanilmandelic Acid. In: Merck Index Online. Merck Sharpe & Dohme Corp. Updated 2013. Accessed September 2, 2022.


  • Sometimes the updated/published dates are not available; look for 'Last Revised' near the bottom of the page