503 Pill — WHITE ROUND, 9mm — Tizanidine
| Imprint | 503 |
|---|---|
| Colour | WHITE |
| Shape | ROUND |
| Size | 9 |
| Strength | TIZANIDINE HYDROCHLORIDE 4 mg |
| Dosage form | Tablet |
| Manufacturer | Major Pharmaceuticals |
| NDC | 0904-6898 |
| Schedule | — |
| Availability | — |
| Ingredients | TIZANIDINE HYDROCHLORIDE[TIZANIDINE] |
What does this imprint mean?
The imprint "503" 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
Tizanidine
Uses and warnings
Drug classA centrally acting "alpha2-adrenergic agonist" skeletal muscle relaxant that reduces spasticity by increasing presynaptic inhibition of motor neurons, believed to act mainly on polysynaptic pathways within the spinal cor...
Read the full drug profile →How to identify this pill
- • Check the imprint matches exactly: "503".
- • Confirm the colour (WHITE) and shape (ROUND).
- • Compare the size (9) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
Similar-looking pills
N 9
WHITE ROUND · Benztropine
R 550
WHITE ROUND · Diclofenac
5
WHITE ROUND · Donepezil
Z 66
WHITE ROUND · Atenolol
20
WHITE ROUND · Escitalopram
CTI 103
WHITE ROUND · Diclofenac
39 L
WHITE ROUND · Loratadine
L147
WHITE ROUND · Cetirizine
550
WHITE ROUND · Diclofenac
AW
WHITE ROUND · Allopurinol
111 O
WHITE ROUND · Carisoprodol
SOMA 250
WHITE ROUND · Carisoprodol
Other pills of Tizanidine
503
WHITE ROUND · Tizanidine
APO TI
WHITE ROUND · Tizanidine
U 169
WHITE ROUND · Tizanidine
U 169
WHITE ROUND · Tizanidine
APO TI
WHITE ROUND · Tizanidine
503
WHITE ROUND · Tizanidine
APO T6
BLUE;BLUE CAPSULE · Tizanidine
M 724
WHITE ROUND · Tizanidine
R 179
WHITE OVAL · Tizanidine
APO TI
WHITE ROUND · Tizanidine
R179
WHITE OVAL · Tizanidine
1113
PURPLE;PURPLE CAPSULE · Tizanidine
Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file dbf630d1-94f5-4d3c-bf99-3bbb09f7e649.xml