What if my pill has no imprint code? All prescription and over-the-counter (OTC) drugs in the U.S. are required by the FDA to have an imprint code. If your pill has no imprint code it could be a vitamin, diet, herbal, or energy pill, or an illicit or foreign drug. It is not possible to accurately identify a pill online without an imprint code.

What if my pill has a logo? If your pill has a logo, you can ignore the logo and type in any other letters or numbers in the imprint code. If you want to refine your results further, you can add the word Logo in place of the logo.