Pills with imprint R100

The imprint R100 is used by 2 distinct products in our FDA label database, covering 2 different medicine(s). An imprint alone does not always identify a pill — makers reuse short codes — so always compare the colour, shape and size as well.

ImprintMedicine & strengthColourShapeSizeLabeler
R100Metoprolol Tartrate 100 mgWhiteRound11 mmRemedyrepack Inc.
R 100Sildenafil 100 mgBlueOval17 mm

Source: FDA label data via DailyMed/openFDA, export of October 29, 2026.