This pill with imprint "4" is White, Round and has been identified as Nitroglycerin 0.4 mg. It is manufactured by Glenmark Generics Inc..
Nitroglycerin is used in the treatment of angina; anal fissure and fistula; heart attack; high blood pressure; heart failure (and more), and belongs to the drug classes antianginal agents, vasodilators. Risk cannot be ruled out during pregnancy. Nitroglycerin 0.4 mg is not a controlled substance under the Controlled Substance Act (CSA).
pill image: https://www.drugs.com/imprints/4-10381.html
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