Pill identification — FDA label match
R 180 Pill — Tizanidine 4 mg (White, Oval)
A white oval tablet with the imprint R 180 matches the FDA label for Tizanidine 4 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | R 180 |
|---|---|
| Imprint parts | R · 180 (the code is split across the pill — often one part per side) |
| Generic name | Tizanidine |
| Active ingredient(s) | Tizanidine Hydrochloride 4 mg |
| Strength | 4 mg |
| Dosage form | Tablet |
| Colour | White |
| Shape | Oval |
| Size | 11 mm |
| Score | Four equal pieces |
| Labeler | Remedyrepack Inc. |
| NDC examples | 49349-579-15, 70518-0133-0, 70518-0133-1, 70518-0133-2, 70518-0133-3 … (13 package codes in total) |
What this medicine is
According to its FDA-approved label, Tizanidine is described as follows (reference information only — not advice about whether it is right for anyone):
Tizanidine tablet is a central alpha-2-adrenergic agonist indicated for the management of spasticity. Because of the short duration of therapeutic effect, treatment with tizanidine tablets should be reserved for those daily activities and times when relief of spasticity is most important [see...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Tizanidine 4 mg). Different makers stamp their own codes, so equivalent pills often look completely different. This is factual label information — it is not a suggestion to substitute one product for another; only a pharmacist or prescriber can advise on that.
Frequently asked questions
What pill has the imprint R 180?
A white oval tablet with the imprint R 180 matches the FDA label for Tizanidine 4 mg. Always compare the colour, shape and size as well — short imprints are shared by different medicines — and confirm with a pharmacist.
What does the R 180 pill look like?
On its FDA label it is described as a white oval tablet, 11 mm, with a score recorded as: four equal pieces.
How can I be sure this identification is right?
Check every characteristic — imprint (both sides), colour, shape, size and score — against the pill in your hand. If all of them agree, the pill matches the FDA label shown here, but that is still not a guarantee: counterfeit pills copy real imprints. A pharmacist can confirm the identification in person, and you should never take a pill you are not certain about.
Browse: all pills with imprint R 180 · Tizanidine — all forms & strengths · White pills · Oval pills
Source: FDA label data via DailyMed/openFDA · Label set ID 73592fc0-4f9d-4812-81ab-3a8abc89145a · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.