Pyrethrum Extract and Piperonyl Butoxide (Topical Route)Drug Information provided by: Micromedex
US Brand Names
Medicine containing pyrethrins is used to treat head, body, and pubic lice infections. This medicine is absorbed by the lice and destroys them by acting on their nervous systems. It does not affect humans in this way. The piperonyl butoxide is included to make the pyrethrins more effective in killing the lice. This combination medicine is known as a pediculicide.
This medicine is available without a prescription.