Pill identification — FDA label match
N 500 Pill — Chlorzoxazone 500 mg (Orange, Round)
An orange round tablet with the imprint N 500 matches the FDA label for Chlorzoxazone 500 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | N 500 |
|---|---|
| Imprint parts | N · 500 (the code is split across the pill — often one part per side) |
| Generic name | Chlorzoxazone |
| Active ingredient(s) | Chlorzoxazone 500 mg |
| Strength | 500 mg |
| Dosage form | Tablet |
| Colour | Orange |
| Shape | Round |
| Size | 13 mm |
| Score | Two even pieces |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-4364-0, 70518-4364-1 |
What this medicine is
According to its FDA-approved label, Chlorzoxazone is described as follows (reference information only — not advice about whether it is right for anyone):
Chlorzoxazone is indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute, painful musculoskeletal conditions. The mode of action of this drug has not been clearly identified, but may be related to its sedative properties....
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Chlorzoxazone 500 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 N 500?
An orange round tablet with the imprint N 500 matches the FDA label for Chlorzoxazone 500 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 N 500 pill look like?
On its FDA label it is described as an orange round tablet, 13 mm, with a score recorded as: two even 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 N 500 · Chlorzoxazone — all forms & strengths · Orange pills · Round pills
Source: FDA label data via DailyMed/openFDA · Label set ID 3f73a1d1-b3ee-4678-bc02-3258ec812127 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.