Pill identification — FDA label match
RD53 Pill — Sirolimus 1 mg (White, Triangle)
A white triangle tablet with the imprint RD53 matches the FDA label for Sirolimus 1 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | RD53 |
|---|---|
| Generic name | Sirolimus |
| Active ingredient(s) | Sirolimus 1 mg |
| Strength | 1 mg |
| Dosage form | Tablet |
| Colour | White |
| Shape | Triangle |
| Size | 5 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-3795-0, 70518-3795-1 |
What this medicine is
According to its FDA-approved label, Sirolimus is described as follows (reference information only — not advice about whether it is right for anyone):
Sirolimus is an mTOR inhibitor immunosuppressant indicated for the prophylaxis of organ rejection in patients aged ≥13 years receiving renal transplants: Patients at low-to moderate-immunologic risk: Use initially with cyclosporine (CsA) and corticosteroids. CsA withdrawal is recommended 2 to 4...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Sirolimus 1 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 RD53?
A white triangle tablet with the imprint RD53 matches the FDA label for Sirolimus 1 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 RD53 pill look like?
On its FDA label it is described as a white triangle tablet, 5 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 RD53 · Sirolimus — all forms & strengths · White pills · Triangle pills
Source: FDA label data via DailyMed/openFDA · Label set ID fc81cb86-61e1-4622-b2ce-cde263143aa0 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.