Pamoxan pinworms medicine (threadworms, seatworms, Viprinium)

What are Pamoxan tablets for pinworms (threadworms, seatworms, Viprinium)?

Pamoxan is the most commonly used medicine against pinworms in Japan. Its active principle is pyrvinium, a quinoline-derived cyanine dye and an mitochondrial oxidative phosphorylation inhibitor, with anthelmintic properties. It works by inhibiting mitochondrial oxidative phosphorylation and respiration and decreases mitochondrial function of the pinworms. Pamoxan is not absorbed into the GIT, making it safe and well-tolerated, suitable for children from 5 years old. To prevent transmission of pinworms among family members, it is important to follow the rules for personal hygiene when treating pinworms.

Active principles: pyrvinium pamoate

Amount: 6 tablets

Maker: Sato Pharmaceutical Co., Ltd., Tokyo, Japan

Indications: eradication of pinworms

How to take

Take the following amount with water:

• Adults over 15 years: take 5 tablets at once, as a single dose. Do not repeat. 
• Children of 11-14 years old: take 3 tablets at once, as a single dose. Do not repeat. 
• Children of 8-10 years old: take 2 tablets at once, as a single dose. Do not repeat. 
• Children of 5-7 years old: take 1 tablet at once, as a single dose. Do not repeat. 

Do not use for children under 5 years old. 

The effectiveness of this medicine has no connection with meals. 

Do not chew the tablets, as they may stain your teeth. 

Contraindications: do not use for children under 5 years old. Pregnant and breastfeeding women should consult with their doctor before use. 

Important information

This medicine is designed to achieve full effect at single dose. If you desire to take a second dose, wait at least 1 month between intakes. 

Urine and feces may temporarily change color to reddish after taking this medicine. 

Patient prone to constipation may be prescribed laxatives together with this medicine to eradicate the parasites. 

If an allergic reaction occurs, patient needs to stop using the medicine and consult with their doctor. If patient is taking any other medication or treatment, they should consult with their doctor in advance.