Pill identification — FDA label match
U 420 Pill — Amitriptyline Hydrochloride 25 mg (Yellow, Round)
A yellow round tablet with the imprint U 420 matches the FDA label for Amitriptyline Hydrochloride 25 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | U 420 |
|---|---|
| Imprint parts | U · 420 (the code is split across the pill — often one part per side) |
| Generic name | Amitriptyline Hydrochloride |
| Active ingredient(s) | Amitriptyline Hydrochloride 25 mg |
| Strength | 25 mg |
| Dosage form | Tablet, Film Coated |
| Colour | Yellow |
| Shape | Round |
| Size | 6 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-3641-0, 70518-3641-1, 70518-3641-2 |
What this medicine is
According to its FDA-approved label, Amitriptyline Hydrochloride is described as follows (reference information only — not advice about whether it is right for anyone):
For the relief of symptoms of depression. Endogenous depression is more likely to be alleviated than are other depressive states.
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Amitriptyline Hydrochloride 25 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 U 420?
A yellow round tablet with the imprint U 420 matches the FDA label for Amitriptyline Hydrochloride 25 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 U 420 pill look like?
On its FDA label it is described as a yellow round tablet, 6 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 U 420 · Amitriptyline Hydrochloride — all forms & strengths · Yellow pills · Round pills
Source: FDA label data via DailyMed/openFDA · Label set ID c66e9088-4f34-4b97-971e-5272b45cfc97 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.