Pyrantel pamoate treats
pinworm infections. The dose of pyrantel pamoate given
is based on the person's weight. Two doses are usually given about 14 days
apart (as long as no side effects are noted after the first dose). More than
the correct dose should not be given at any time.
comes as a liquid or a chewable pill. Some brands come with a small measuring
cup and a weight chart on the box so that you can calculate correct doses. If
you have problems calculating a dose or have concerns about the medicine, talk
pharmacist or your doctor.
How It Works
Pyrantel pamoate kills adult pinworms. It
does not kill pinworm eggs.
Why It Is Used
Pyrantel pamoate is a nonprescription
medicine commonly used for pinworm infections. It is taken after a definite
diagnosis of pinworms has been made by either seeing the worms or doing a
transparent (cellophane) tape test. It may also be used if mebendazole (a
prescription medicine) is not effective.
Do not give pyrantel
pamoate to pregnant women, breast-feeding women, or children younger than age 2
without first talking with a doctor.
How Well It Works
Pyrantel pamoate gets rid of pinworm
infections most of the time. But reinfection with pinworms is very
Side effects of pyrantel pamoate are not
very common but may include:
If side effects develop after the initial dose, a second
dose (normally taken in about 2 weeks) should not be taken without talking with
See Drug Reference for a full list of side effects.
(Drug Reference is not available in all systems.)
What To Think About
pyrantel pamoate, take measures to prevent reinfection and the spread of
infection to others. See the Home Treatment section of the Pinworms
Children younger than age 2 should only take this medicine
on the advice of a doctor.
Pregnant women and breast-feeding women
should not use this medicine without first consulting a doctor.
Pyrantel pamoate can be taken with food, milk, or juice, or on an empty
Because pinworm eggs can survive for 2 weeks after
treatment with pyrantel pamoate, reinfection can occur. Treatment with a second
dose is usually recommended.
Complete the new medication information form (PDF)(What is a PDF document?) to help you understand this medication.