Pyrantel Side Effects

Medically reviewed by Drugs.com. Last updated on Jul 22, 2024.

Applies to pyrantel: oral suspension.

Common side effects of 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 side effects

• abdominal or stomach cramps or pain
• diarrhea
• dizziness
• drowsiness
• headache
• irritability
• loss of appetite
• nausea or vomiting
• trouble in sleeping

Serious side effects of pyrantel

Along with its needed effects, pyrantel 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:

Rare side effects

• skin rash

For healthcare professionals

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

Gastrointestinal adverse events

• Frequency not reported: Nausea, vomiting, diarrhea, abdominal cramps, abdominal discomfort^[Ref]

Nervous system

• Frequency not reported: Headache, dizziness, drowsiness^[Ref]

Hepatic

• Frequency not reported: Minor abnormalities of liver function, transient increases in liver enzymes values^[Ref]

Metabolic

• Frequency not reported: Anorexia

Psychiatric

• Frequency not reported: Insomnia

Other

• Frequency not reported: Fatigue

Dermatologic

• Frequency not reported: Skin rashes^[Ref]

Frequently asked questions

• Pyrantel - what is the dosage for cats and kittens?

Further information

Pyrantel side effects can vary depending on the individual. 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.

Medical Disclaimer