How to identify a pill safely

Nearly every prescription and over-the-counter tablet or capsule sold in the U.S. carries a unique imprint code— the letters, numbers, or logos stamped or printed on it. The FDA requires these codes so that a specific drug, strength, and manufacturer can be traced from the pill alone. Read it carefully: note every character, any spaces or score lines, and check both sides. Combined with the pill's shape and color, the imprint is usually enough to find a match in an official database such as DailyMed.

Why you should never guess

Different medications can look nearly identical, and colors and shapes are reused across thousands of products. Guessing — or trusting a lookalike — can lead to taking the wrong drug or the wrong dose, which can be dangerous. Loose pills that have fallen out of their labeled packaging, or pills you found and can't account for, should be treated as unidentified until proven otherwise. If you can't positively identify a pill, do not take it.

Ask a pharmacist — it's free

A pharmacist can identify almost any pill for you at no cost, in person or by phone. Bring the pill (or a clear photo of both sides) and they can confirm the drug, strength, and maker. If you suspect someone has taken the wrong medicine or too much, don't wait to identify it first: in the U.S., call Poison Control at 1-800-222-1222, or call 911 for a medical emergency.

Once you know the medication's name, you can read up on its uses, dosing, side effects, and warnings in our Drugs & Medications A–Z.