Piperonyl Butoxide / Pyrethrins Topical Dosage
Medically reviewed by Drugs.com. Last updated on Jun 2, 2025.
Applies to the following strengths: 3%-0.3%; 4%-0.33%; 3.5%-0.3%
Usual Adult Dose for Lice
Piperonyl butoxide 4%-pyrethrins 0.33% topical shampoo: Use on dry hair. Apply to affected area until all the hair is thoroughly wet with shampoo. Allow to remain for 10 minutes only. Shampoo as usual and rinse thoroughly. Second treatment must be done in 7 to 10 days.
Usual Pediatric Dose for Lice
Piperonyl butoxide 4%-pyrethrins 0.33% topical shampoo: Use on dry hair. Apply to affected area until all the hair is thoroughly wet with shampoo. Allow to remain for 10 minutes only. Shampoo as usual and rinse thoroughly. Second treatment must be done in 7 to 10 days.
More about piperonyl butoxide / pyrethrins topical
Patient resources
- Piperonyl butoxide and pyrethrins topical drug information
- Pyrethrum extract and piperonyl butoxide (Advanced Reading)
- Pyrethrins and Piperonyl Butoxide Shampoo
Other brands
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
