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Papaverine Hydrochloride
Sustained Release Capsules, 150 mg
Papaverine hydrochloride, C20H21NO4•HCl, is a white, crystalline powder, odorless, with a slight bitter taste and is soluble in water.
Each capsule contains: papaverine hydrochloride USP 150 mg.
Chemically, it is Isoquinoline,1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride. It has a molecular weight of 375.85. It has the following structural formula:
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Manufactured in a special base which is designed for prolonged release. Each capsule also contains the following inactive ingredients: FD&C blue No. 1, FD&C red No. 40, gelatin, pharmaceutical glaze, povidone, silicon dioxide, sodium lauryl sulfate, corn starch, sucrose and talc.
Stop taking papaverine and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives).
Stop taking papaverine and contact your doctor if your skin or eyes develop a yellow tint.
Other, less serious side effects may be more likely to occur. Continue to take papaverine and talk to your doctor if you experience
Read All Potential Side Effects and See Pictures of Papaverine »
Before taking papaverine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: certain heart problem (atrioventricular block), Parkinson's disease.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: glaucoma, irregular heartbeat, liver problems.
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such...
Last reviewed on RxList: 3/31/2009
This monograph has been modified to include the generic and brand name in many instances.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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