M 4 Pill — WHITE OVAL, 20mm — Metoprolol
| Imprint | M / 4 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 20 |
| Strength | METOPROLOL SUCCINATE 200 mg |
| Dosage form | Tablet, Extended Release |
| Manufacturer | AvPAK |
| NDC | 50268-543 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | METOPROLOL SUCCINATE[METOPROLOL] |
What does this imprint mean?
The imprint "M 4" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Metoprolol
Uses and warnings
Drug class"Metoprolol tartrate is a beta1-selective (cardioselective) adrenergic receptor blocker" that preferentially blocks beta1-receptors in cardiac tissue while showing selectivity at lower doses.UsesMetoprolol tartrate table...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "M 4".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (20) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 9c96fea8-0c23-526e-e053-2a95a90afdfd.xml