R 538 Pill — BLUE ROUND, 9mm — Carbidopa Levodopa
| Imprint | R / 538 |
|---|---|
| Colour | BLUE |
| Shape | ROUND |
| Size | 9 |
| Strength | CARBIDOPA 10 mg;LEVODOPA 100 mg |
| Dosage form | Tablet |
| Manufacturer | Cardinal Health |
| NDC | 55154-3829 |
| Schedule | — |
| Availability | — |
| Ingredients | CARBIDOPA[CARBIDOPA ANHYDROUS];LEVODOPA[LEVODOPA] |
What does this imprint mean?
The imprint "R 538" 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
Carbidopa Levodopa
Uses and warnings
No boxed warning. The label warns that patients "have reported suddenly falling asleep without prior warning of sleepiness while engaged in activities of daily living." It also notes "seizures associated with vitamin B6 deficiency have been reported," sporadic cases of a symptom complex "resembling neuroleptic malignant syndrome (NMS)" with dose reduction or withdrawal, and impulse control problems including "intense urge to gamble, increased sexual urges...binge eating."
SINEMET is indicated in the treatment of Parkinson's disease, post-encephalitic parkinsonism, and symptomatic parkinsonism that may follow carbon monoxide intoxication or manganese intoxication.
How to identify this pill
- • Check the imprint matches exactly: "R 538".
- • Confirm the colour (BLUE) and shape (ROUND).
- • Compare the size (9) 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 d8d9de69-5106-481e-941a-b284f9e0851f.xml