Pill identification — FDA label match

R100 Pill — Metoprolol Tartrate 100 mg (White, Round)

A white round tablet with the imprint R100 matches the FDA label for Metoprolol Tartrate 100 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.

ImprintR100
Generic nameMetoprolol Tartrate
Active ingredient(s)Metoprolol Tartrate 100 mg
Strength100 mg
Dosage formTablet
ColourWhite
ShapeRound
Size11 mm
ScoreTwo even pieces
LabelerRemedyrepack Inc.
NDC examples70518-4535-0, 70518-4535-1, 70518-4748-0, 70518-2193-0, 70518-2193-1 … (20 package codes in total)

What this medicine is

According to its FDA-approved label, Metoprolol Tartrate is described as follows (reference information only — not advice about whether it is right for anyone):

Metoprolol tartrate is a beta-adrenergic blocker indicated for the treatment of: Hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. ( 1.1 ) Angina Pectoris. ( 1.2 ) Myocardial...

Equivalent pills — same medicine, different imprint

The pills below contain the same active ingredient at the same strength (Metoprolol Tartrate 100 mg). Different makers stamp their own codes, so equivalent pills often look completely different. This is factual label information — it is not a suggestion to substitute one product for another; only a pharmacist or prescriber can advise on that.

C 75 Metoprolol Tartrate 100 mg — Blue · round · 11 mmE701 Metoprolol Tartrate 100 mg — White · round · 10 mm
167 Metoprolol Tartrate 100 mg — White · capsule · 14 mmFull page in a later wave
M 47 Metoprolol Tartrate 100 mg — Blue · round · 10 mmFull page in a later wave
RE 76 Metoprolol Tartrate 100 mg — White · round · 10 mmFull page in a later wave
WATSON 463 Metoprolol Tartrate 100 mg — Blue · round · 10 mmFull page in a later wave
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Frequently asked questions

What pill has the imprint R100?

A white round tablet with the imprint R100 matches the FDA label for Metoprolol Tartrate 100 mg. Always compare the colour, shape and size as well — short imprints are shared by different medicines — and confirm with a pharmacist.

What does the R100 pill look like?

On its FDA label it is described as a white round tablet, 11 mm, with a score recorded as: two even pieces.

How can I be sure this identification is right?

Check every characteristic — imprint (both sides), colour, shape, size and score — against the pill in your hand. If all of them agree, the pill matches the FDA label shown here, but that is still not a guarantee: counterfeit pills copy real imprints. A pharmacist can confirm the identification in person, and you should never take a pill you are not certain about.

Browse: all pills with imprint R100 · Metoprolol Tartrate — all forms & strengths · White pills · Round pills

Source: FDA label data via DailyMed/openFDA · Label set ID f7a05d74-f5e9-4236-a967-c57942a2bbf3 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.