Description and Brand Names

Drug information provided by: Merative, Micromedex®

US Brand Name

  1. A200 Maximum Strength
  2. A200 Time-Tested Formula
  3. Lice-X
  4. Licide
  5. Medi-Lice Maximum Strength
  6. Pronto Maximum Strength
  7. Pyrinex
  8. Pyrinyl
  9. Rid
  10. Tisit


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.

This product is available in the following dosage forms:

  • Foam
  • Gel/Jelly
  • Liquid
  • Shampoo