M 1721 Pill — WHITE OVAL, 19mm — Acetaminophen
| Imprint | M / 1721 |
|---|---|
| Colour | WHITE |
| Shape | OVAL |
| Size | 19 |
| Strength | PROPOXYPHENE 100 mg / ACETAMINOPHEN 650 mg |
| Dosage form | Tablet |
| Manufacturer | Blenheim Pharmacal, Inc. |
| NDC | 10544-513 |
| Schedule | — |
| Availability | — |
| Ingredients | PROPOXYPHENE NAPSYLATE[PROPOXYPHENE] / ACETAMINOPHEN[ACETAMINOPHEN] |
What does this imprint mean?
The imprint "M 1721" 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
Acetaminophen
Uses and warnings
Liver Warning: "Severe liver damage may occur if you take more than 4,000 mg of acetaminophen in 24 hours" (the maximum daily dose), when combined with other acetaminophen-containing drugs, or with 3+ daily alcoholic drinks. Allergy Alert: The product "may cause severe skin reactions" with symptoms including skin reddening, blisters, and rash; users should "stop use and seek medical help right away" if these occur. Additional Warnings: - Do not use with other acetaminophen-containing products - Ask a doctor before use if you have liver disease - Stop use if pain lasts over 10 days or fever over 3 days - Contains overdose warning regarding liver damage risk
This product is indicated to "temporarily relieve minor aches and pains" including headache, muscular aches, backache, minor arthritis pain, common cold symptoms, toothache, and menstrual cramps. It also "temporarily reduces fever."
How to identify this pill
- • Check the imprint matches exactly: "M 1721".
- • Confirm the colour (WHITE) and shape (OVAL).
- • Compare the size (19) 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 624ceccf-24a6-4652-bedb-c31750bb516f.xml