L421 Pill — WHITE ROUND, 25mm — Aspirin
| Imprint | L421 |
|---|---|
| Colour | WHITE |
| Shape | ROUND |
| Size | 25 |
| Strength | ASPIRIN 325 mg;CITRIC ACID MONOHYDRATE 1000 mg;SODIUM BICARBONATE 1916 mg |
| Dosage form | C42910 |
| Manufacturer | Unifirst First Aid Corporation |
| NDC | 47682-135 |
| Schedule | — |
| Availability | Over-the-counter |
| Ingredients | ASPIRIN[ASPIRIN];CITRIC ACID MONOHYDRATE[ANHYDROUS CITRIC ACID];SODIUM BICARBONATE[BICARBONATE ION] |
What does this imprint mean?
The imprint "L421" 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
Aspirin
Uses and warnings
Reye's Syndrome Warning: Children and teenagers recovering from chicken pox or flu-like illness should avoid this product. Behavioral changes with nausea and vomiting may signal early Reye's syndrome. Allergy Alert: Severe allergic reactions possible, including facial swelling, shock, hives, and asthma. Stomach Bleeding Warning: NSAID-related severe bleeding risk increases if user is age 60+, takes anticoagulants/steroids, uses other NSAIDs, has ulcer history, consumes 3+ daily alcoholic drinks, or exceeds dosing instructions. Do Not Use: If allergic to aspirin or pain relievers. Pregnancy: "Especially important not to use aspirin during the last 3 months of pregnancy unless definitely directed by a doctor."
"Temporarily relieves: toothache, headache, muscle pain, pain and fever of colds, menstrual pain, minor pain of arthritis." The product functions as a pain reliever and fever reducer.
How to identify this pill
- • Check the imprint matches exactly: "L421".
- • Confirm the colour (WHITE) and shape (ROUND).
- • Compare the size (25) 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 a0f8ab6e-4454-0dc4-e053-2a95a90a7844.xml