Ovide (generic: malathion) is a prescription medication used to treat head lice (tiny insects that live on humans, usually found in hair). Ovide belongs to a group of drugs called pediculicides. It works by killing lice.

This medication comes as a lotion to be applied to the scalp and hair and is left on for 8 to 12 hours. If adult lice are found 7 to 9 days after treatment, a second application may be required.

Common side effects include skin or scalp irritation and stinging.

Warning: Ovide Lotion is flammable. Do not expose lotion and wet hair to open flames. Do not smoke while applying Ovide Lotion or while hair is wet.