Pill identification — FDA label match
135 M Pill — Doxepin Hydrochloride 6 mg (Yellow, Oval)
A yellow oval tablet with the imprint 135 M matches the FDA label for Doxepin Hydrochloride 6 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | 135 M |
|---|---|
| Imprint parts | 135 · M (the code is split across the pill — often one part per side) |
| Brand name | Doxepin hydrochloride |
| Generic name | Doxepin Hydrochloride |
| Active ingredient(s) | Doxepin Hydrochloride 6 mg |
| Strength | 6 mg |
| Dosage form | Tablet |
| Colour | Yellow |
| Shape | Oval |
| Size | 5 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-4297-0, 70518-4297-1 |
What this medicine is
According to its FDA-approved label, Doxepin Hydrochloride is described as follows (reference information only — not advice about whether it is right for anyone):
Doxepin tablets are indicated for the treatment of insomnia characterized by difficulty with sleep maintenance. The clinical trials performed in support of efficacy were up to 3 months in duration. Doxepin tablets are indicated for the treatment of insomnia characterized by difficulties with sleep...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Doxepin Hydrochloride 6 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 135 M?
A yellow oval tablet with the imprint 135 M matches the FDA label for Doxepin Hydrochloride 6 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 135 M pill look like?
On its FDA label it is described as a yellow oval 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 135 M · Doxepin Hydrochloride — all forms & strengths · Yellow pills · Oval pills
Source: FDA label data via DailyMed/openFDA · Label set ID 7a8c56ab-5dd1-4e1a-b26a-3af45b961dd0 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.