MedicineOTC

Malathion

A prescription lotion (Ovide) that kills head lice and their eggs.

Clinical information

Common uses

head lice on the scalp hair

Common side effects

skin and scalp irritation
stinging sensations
mild eye redness if it gets in eyes

Cautions

flammable — no flames, hair dryers or smoking until hair dries
not for newborns and infants
chemical burns, including second-degree burns, can occur
stop use if skin irritation develops

Pregnancy: use only if clearly needed

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, Ovide (malathion) lotion label, setid 945f46fa-4b79-49fd-a890-477f251e2164 (accessed 2026-08-16)

Approved brands & formulations1

Brand name	Dosage form	Strength	Importer	Category
A - Lices Scalp and Body Hygiene Shampoo	Topical Preparations ( Shampoo )	1% in 30ml W/V	authorized medicine importers	OTC