Pill identification — FDA label match
J 50 Pill — Acyclovir 800 mg (Blue, Oval)
A blue oval tablet with the imprint J 50 matches the FDA label for Acyclovir 800 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.
| Imprint | J 50 |
|---|---|
| Imprint parts | J · 50 (the code is split across the pill — often one part per side) |
| Generic name | Acyclovir |
| Active ingredient(s) | Acyclovir 800 mg |
| Strength | 800 mg |
| Dosage form | Tablet |
| Colour | Blue |
| Shape | Oval |
| Size | 19 mm |
| Score | No score |
| Labeler | Remedyrepack Inc. |
| NDC examples | 70518-2518-0, 70518-2518-1, 70518-2518-2, 70518-2518-3, 70518-2518-4 … (6 package codes in total) |
What this medicine is
According to its FDA-approved label, Acyclovir is described as follows (reference information only — not advice about whether it is right for anyone):
Herpes Zoster Infections: Acyclovir tablets, USP are indicated for the acute treatment of herpes zoster (shingles). Genital Herpes: Acyclovir tablets, USP are indicated for the treatment of initial episodes and the management of recurrent episodes of genital herpes. Chickenpox: Acyclovir tablets,...
Equivalent pills — same medicine, different imprint
The pills below contain the same active ingredient at the same strength (Acyclovir 800 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 J 50?
A blue oval tablet with the imprint J 50 matches the FDA label for Acyclovir 800 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 J 50 pill look like?
On its FDA label it is described as a blue oval tablet, 19 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 J 50 · Acyclovir — all forms & strengths · Blue pills · Oval pills
Source: FDA label data via DailyMed/openFDA · Label set ID 736679be-469e-4bdb-8e15-b10751c3dd60 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.