M 434 Pill — ORANGE OVAL, 15mm — Metoprolol
| Imprint | M / 434 |
|---|---|
| Colour | ORANGE |
| Shape | OVAL |
| Size | 15 |
| Strength | METOPROLOL TARTRATE 100 mg;HYDROCHLOROTHIAZIDE 25 mg |
| Dosage form | Tablet |
| Manufacturer | Mylan Pharmaceuticals Inc. |
| NDC | 0378-0434 |
| Schedule | — |
| Availability | Prescription only |
| Ingredients | METOPROLOL TARTRATE[METOPROLOL];HYDROCHLOROTHIAZIDE[HYDROCHLOROTHIAZIDE] |
What does this imprint mean?
The imprint "M 434" 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
Key warnings include: - Cardiac Failure: "Sympathetic stimulation is a vital component supporting circulatory function in congestive heart failure, and beta-blockade carries the potential hazard of further depressing myocardial contractility" - Abrupt Discontinuation: Risk of angina exacerbation or myocardial infarction if stopped suddenly; dosage should be "gradually reduced over a period of 1 to 2 weeks" - Bronchospastic Diseases: "PATIENTS WITH BRONCHOSPASTIC DISEASES SHOULD, IN GENERAL, NOT RECEIVE BETA-BLOCKERS" - Diabetes: Beta-blockers "may mask tachycardia occurring with hypoglycemia"
Metoprolol tartrate tablets are indicated for three conditions: - Hypertension: "treatment of hypertension. They may be used alone or in combination with other antihypertensive agents." - Angina Pectoris: "long-term treatment of angina pectoris" - Myocardial Infarction: "treatment of hemodynamically stable patients with definite or suspected acute myocardial infarction to reduce cardiovascular mortality"
How to identify this pill
- • Check the imprint matches exactly: "M 434".
- • Confirm the colour (ORANGE) and shape (OVAL).
- • Compare the size (15) 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 8ae477e2-6200-4c1c-aede-620f8f3f0790.xml