Pill identification — FDA label match

A 12 Pill — Metformin Hydrochloride 500 mg (White, Round)

A white round tablet with the imprint A 12 matches the FDA label for Metformin Hydrochloride 500 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.

ImprintA 12
Imprint partsA · 12 (the code is split across the pill — often one part per side)
Generic nameMetformin Hydrochloride
Active ingredient(s)Metformin Hydrochloride 500 mg
Strength500 mg
Dosage formTablet, Film Coated
ColourWhite
ShapeRound
Size11 mm
ScoreNo score
LabelerRemedyrepack Inc.
NDC examples52125-279-21, 52125-279-02, 24236-908-20, 70518-1149-0, 70518-1149-1 … (10 package codes in total)

What this medicine is

According to its FDA-approved label, Metformin Hydrochloride is described as follows (reference information only — not advice about whether it is right for anyone):

Section Metformin hydrochloride tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults and children with type 2 diabetes mellitus.

Equivalent pills — same medicine, different imprint

The pills below contain the same active ingredient at the same strength (Metformin Hydrochloride 500 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.

G 10 Metformin Hydrochloride 500 mg — White · round · 11 mmSG 105 Metformin Hydrochloride 500 mg — White · round · 11 mmG7 Metformin Hydrochloride 500 mg — White · capsule · 18 mm
H 102 Metformin Hydrochloride 500 mg — White · round · 11 mmFull page in a later wave
142 Metformin Hydrochloride 500 mg — White · capsule · 16 mmFull page in a later wave
397 Metformin Hydrochloride 500 mg — White · round · 11 mmFull page in a later wave
001 Metformin Hydrochloride 500 mg — White · capsule · 18 mmFull page in a later wave
OE 584 Metformin Hydrochloride 500 mg — White · oval · 19 mmFull page in a later wave
500 Metformin Hydrochloride 500 mg — White · round · 11 mmFull page in a later wave
APO XR500 Metformin Hydrochloride 500 mg — White · capsule · 19 mmFull page in a later wave
IL001 Metformin Hydrochloride 500 mg — White · capsule · 18 mmFull page in a later wave
IP 178 Metformin Hydrochloride 500 mg — White · capsule · 19 mmFull page in a later wave
Discount cards: partner discount-card offers for this medicine will appear in this space once our partner programs launch. This slot is intentionally empty — we never link to places that sell prescription medicines.

Frequently asked questions

What pill has the imprint A 12?

A white round tablet with the imprint A 12 matches the FDA label for Metformin Hydrochloride 500 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 A 12 pill look like?

On its FDA label it is described as a white round tablet, 11 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 A 12 · Metformin Hydrochloride — all forms & strengths · White pills · Round pills

Source: FDA label data via DailyMed/openFDA · Label set ID 39620c91-9fec-4604-b723-f42344c07af5 · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.