Pill identification — FDA label match

S 522 Pill — Bupropion Hydrochloride 100 mg (Blue, Round)

A blue round tablet with the imprint S 522 matches the FDA label for Bupropion Hydrochloride 100 mg. Compare every detail below with your pill, and confirm with a pharmacist before relying on it.

ImprintS 522
Imprint partsS · 522 (the code is split across the pill — often one part per side)
Brand namebupropion hydrochlorideSR SR
Generic nameBupropion Hydrochloride
Active ingredient(s)Bupropion Hydrochloride 100 mg
Strength100 mg
Dosage formTablet, Film Coated, Extended Release
ColourBlue
ShapeRound
Size9 mm
ScoreNo score
LabelerRemedyrepack Inc.
NDC examples70518-4591-0, 70518-2641-0, 70518-2641-1

What this medicine is

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

Bupropion hydrochloride extended-release (SR) tablets are indicated for the treatment of major depressive disorder (MDD), as defined by the Diagnostic and Statistical Manual (DSM). The efficacy of bupropion in the treatment of a major depressive episode was established in two 4-week controlled...

Equivalent pills — same medicine, different imprint

The pills below contain the same active ingredient at the same strength (Bupropion Hydrochloride 100 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.

L296 Bupropion Hydrochloride 100 mg — Yellow · round · 12 mmSG 174 Bupropion Hydrochloride 100 mg — Blue · round · 9 mm
E OVER 410 Bupropion Hydrochloride 100 mg — Blue · round · 8 mmFull page in a later wave
APO BUP 100 Bupropion Hydrochloride 100 mg — Purple · round · 9 mmFull page in a later wave
GG930 Bupropion Hydrochloride 100 mg — Purple · round · 11 mmFull page in a later wave
M 435 Bupropion Hydrochloride 100 mg — Blue · round · 12 mmFull page in a later wave
WPI 858 Bupropion Hydrochloride 100 mg — White · round · 10 mmFull page in a later wave
736 Bupropion Hydrochloride 100 mg — White · round · 7 mmFull page in a later wave
A 171 Bupropion Hydrochloride 100 mg — Yellow · round · 10 mmFull page in a later wave
IG 484 Bupropion Hydrochloride 100 mg — Blue · round · 10 mmFull page in a later wave
IG 540 Bupropion Hydrochloride 100 mg — Red · round · 11 mmFull page in a later wave
M U11 Bupropion Hydrochloride 100 mg — Green · round · 9 mmFull page in a later wave
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Frequently asked questions

What pill has the imprint S 522?

A blue round tablet with the imprint S 522 matches the FDA label for Bupropion Hydrochloride 100 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 S 522 pill look like?

On its FDA label it is described as a blue round tablet, 9 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 S 522 · Bupropion Hydrochloride — all forms & strengths · Blue pills · Round pills

Source: FDA label data via DailyMed/openFDA · Label set ID 850ac56a-ba50-4e61-b1ee-805e17735b5c · Record extracted from the openFDA bulk export of October 29, 2026. Spotted an error? Report it — include the imprint and what looks wrong.