20 SCHWARZ Pill — WHITE ROUND, 9mm — Isosorbide Mononitrate
| Imprint | 20 / SCHWARZ |
|---|---|
| Colour | WHITE |
| Shape | ROUND |
| Size | 9 |
| Strength | isosorbide mononitrate 20 mg |
| Dosage form | Tablet |
| Manufacturer | UCB, Inc. |
| NDC | 0091-3620 |
| Schedule | — |
| Availability | — |
| Ingredients | isosorbide mononitrate[isosorbide] |
What does this imprint mean?
The imprint "20 SCHWARZ" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Isosorbide Mononitrate
Uses and warnings
Contraindicated in patients "who are allergic to it," and the label states "do not use isosorbide mononitrate in patients who are taking certain drugs for erectile dysfunction (phosphodiesterase inhibitors), such as sildenafil, tadalafil, or vardenafil," as well as in patients taking "the soluble guanylate cyclase stimulator riociguat," because of the risk of severe, life-threatening hypotension from combined nitrate/PDE-5-inhibitor use. The label also warns that "severe hypotension, particularly with upright posture, may occur with even small doses," and that tolerance to the drug's effects can develop with continuous use.
"Indicated for the prevention and treatment of angina pectoris due to coronary artery disease." The label specifically cautions that "the onset of action of oral isosorbide mononitrate is not sufficiently rapid for this product to be useful in aborting an acute anginal episode," so it is intended for prophylactic, not acute, use.
How to identify this pill
- • Check the imprint matches exactly: "20 SCHWARZ".
- • Confirm the colour (WHITE) and shape (ROUND).
- • Compare the size (9) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 915feb05-90e7-4dbd-ab5a-62b1b97ff337.xml