AP 331 Pill — BROWN ROUND, 8mm — Levothyroxine
| Imprint | AP / 331 |
|---|---|
| Colour | BROWN |
| Shape | ROUND |
| Size | 8 |
| Strength | LEVOTHYROXINE 57 ug;LIOTHYRONINE 13.5 ug |
| Dosage form | Tablet |
| Manufacturer | Medsource Pharmaceuticals |
| NDC | 45865-850 |
| Schedule | — |
| Availability | — |
| Ingredients | LEVOTHYROXINE[LEVOTHYROXINE];LIOTHYRONINE[LIOTHYRONINE] |
What does this imprint mean?
The imprint "AP 331" 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
Levothyroxine
Uses and warnings
Drug classLevothyroxine is a synthetic thyroid hormone (L-thyroxine/T4). It functions as a replacement therapy exerting "physiologic actions through control of DNA transcription and protein synthesis," maintainUsesLevothyroxine so...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "AP 331".
- • Confirm the colour (BROWN) and shape (ROUND).
- • Compare the size (8) 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 20a00a85-f2d1-3953-e054-00144ff8d46c.xml