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1 B pill

2 pills in our database have the imprint 1 B. They are 2 different medicines: Allopurinol and Zafirlukast.

They differ in strength, 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 Size Made by
Allopurinol 200 mg 9 mm Leading Pharma, LLC
Zafirlukast 10 mg 6 mm Aurobindo Pharma Limited

2 pills with imprint 1 B

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.

About these medicines

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