Pill identification — FDA label match
C4 Pill — Chlorpromazine Hydrochloride 100 mg (Yellow, Round)
A yellow round tablet with the imprint C4 matches the FDA label for Chlorpromazine Hydrochloride 100 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | C4 |
|---|---|
| Generic name | Chlorpromazine Hydrochloride |
| Active ingredient(s) | Chlorpromazine Hydrochloride 100 mg |
| Strength | 100 mg |
| Dosage form | Tablet, Sugar Coated |
| Colour | Yellow |
| Shape | Round |
| Size | 10 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-3584-0, 70518-3584-1, 70518-3584-2 |
What this medicine is
According to its FDA-approved label, Chlorpromazine Hydrochloride is described as follows (reference information only — not advice about whether it is right for anyone):
For the management of manifestations of psychotic disorders. For the treatment of schizophrenia. To control nausea and vomiting. For relief of restlessness and apprehension before surgery. For acute intermittent porphyria. As an adjunct in the treatment of tetanus. To control the manifestations of...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Chlorpromazine Hydrochloride 100 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 C4?
A yellow round tablet with the imprint C4 matches the FDA label for Chlorpromazine Hydrochloride 100 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 C4 pill look like?
On its FDA label it is described as a yellow round tablet, 10 mm, with a score recorded as: no score.
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 C4 · Chlorpromazine Hydrochloride — all forms & strengths · Yellow pills · Round pills
Source: FDA label data via DailyMed/openFDA · Label set ID d3b09b67-e8da-450d-8a52-b3c40605de26 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.