531 pill
3 pills in our database have the imprint 531. They are 3 different medicines: Minocycline Hydrochloride, Tramadol HCl, and Tramadol Hydrochloride.
They differ in strength, color, shape, size, and maker, so compare those with your pill and its package.
Different medicines share this imprint. Check every detail before you trust a match, and ask a pharmacist if you are unsure.
How to tell them apart
| Pill | Color | Shape | Size | Made by |
|---|---|---|---|---|
| Minocycline Hydrochloride 45 mg | Gray | Capsule / oblong | 9 mm | Zydus Pharmaceuticals (Usa) Inc |
| Tramadol HCl 100 mg | White | Round | 8 mm | Advanced Rx Pharmacy of Tennessee, LLC |
| Tramadol Hydrochloride 100 mg | White | Round | 8 mm | H.j. Harkins Company, Inc |
3 pills with imprint 531
Did you read the imprint right?
Some letters and numbers are easy to mix up on a pill, such as 0 and O, 1 and I, or 5 and S. These imprints differ only by those characters.