531 MD Pill — YELLOW ROUND, 6mm — Methylphenidate
| Imprint | 531 / MD |
|---|---|
| Colour | YELLOW |
| Shape | ROUND |
| Size | 6 |
| Strength | — |
| Dosage form | Tablet |
| Manufacturer | UCB PHARMA, INC. |
| NDC | 0781-8840 |
| Schedule | CII |
| Availability | — |
| Ingredients | — |
What does this imprint mean?
The imprint "531 MD" 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
Methylphenidate
Uses and warnings
Drug class"Mild central nervous system (CNS) stimulant" that "presumably activates the brain stem arousal system and cortex to produce its stimulant effect," though its precise mechanism of therapeutic action in ADHD is...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "531 MD".
- • Confirm the colour (YELLOW) and shape (ROUND).
- • Compare the size (6) 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 6281ca7c-2aec-4f14-b7e4-82401a701c96.xml