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Pin-X Side Effects

Generic Name: pyrantel

Note: This document contains side effect information about pyrantel. Some of the dosage forms listed on this page may not apply to the brand name Pin-X.

For the Consumer

Applies to pyrantel: oral suspension

Along with its needed effects, pyrantel (the active ingredient contained in Pin-X) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur while taking pyrantel:


Some side effects of pyrantel may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less Common

For Healthcare Professionals

Applies to pyrantel: compounding powder, oral suspension, oral tablet


Gastrointestinal side effects have included nausea, vomiting, diarrhea, abdominal cramps.[Ref]


Dermatologic side effects have included skin rashes.[Ref]


Hepatic side effects have included transient increases in liver enzymes values.[Ref]

Nervous system

Nervous system side effects have included dizziness, drowsiness, insomnia, and headache.[Ref]


1. "Product Information. Pinworm Medicine (pyrantel)." Reese Chemical Company, Cleveland, OH.

2. "Multum Information Services, Inc. Expert Review Panel"

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

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