Does Ovide (malathion) cause side effects?
Ovide (malathion) is a pesticide used to kill head lice (Pediculus humanus capitis). It kills head lice and lice eggs by blocking the activity of enzymes (cholinesterase) that breaks-down and inactivates acetylcholine (a neurotransmitter) in head lice. This causes high levels of acetylcholine which leads to death of lice.
Common side effects of Ovide include
Ovide is flammable.
There are no drug interactions listed for Ovide.
Ovide has not been adequately evaluated in pregnant women. Available data from animals suggests that the risk of fetal toxicity is low. It should be used (or handled) during pregnancy only if clearly needed.
What are the important side effects of Ovide (malathion)?
Common side effects of malathion include:
- Skin irritation
- Scalp irritation
- Other side effects include:
- Mild conjunctivitis from accidental eye contact
- Possible serious side effects include:
- Chemical burn (second degree burn)
Malathion is flammable.
Ovide (malathion) side effects list for healthcare professionals
Malathion has been shown to be irritating to the skin and scalp. Other adverse reactions reported are chemical burns including second-degree burns. Accidental contact with the eyes can result in mild conjunctivitis.
It is not known if Malathion Lotion has the potential to cause contact allergic sensitization.
Ovide (malathion) is a pesticide used to kill head lice (Pediculus humanus capitis). It kills head lice and lice eggs by blocking the activity of enzymes (cholinesterase) that breaks-down and inactivates acetylcholine (a neurotransmitter) in head lice. Common side effects of Ovide include skin irritation, scalp irritation, and mild conjunctivitis from accidental eye contact. Serious side effects of Ovide include chemical burn (second degree burn). Ovide is flammable. Ovide has not been adequately evaluated in pregnant women. It is unknown if Ovide is excreted in breast milk.
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Related Disease Conditions
Head Lice vs. Dandruff
Dandruff is a condition that causes dry flakes on the scalp. Lice are parasites. Head lice infestations are very contagious. Both head lice and dandruff have similar signs and symptoms: scalp itching and tiny white material on the hair shafts. Lice treatment involves the application of over-the-counter shampoos that contain permethin or pyrethrin followed by nit and louse removal with a fine-toothed comb. Dandruff treatment incorporates the use of anti-dandruff shampoo.
Lice vs. Fleas
Lice and fleas are small wingless insects. Lice are parasites that can crawl and infest the human skin and scalp. Although they can bite people, fleas are parasites that mainly feed on non-human hosts and can jump from one host to another. Lice infestations and fleabites are treatable and typically do not cause long-term problems with proper treatments for home, people, and pets.
Pubic Lice (Crabs)
Pubic lice (crabs) are parasitic insects found in the genital area, and are primarily spread through sexual contact. Symptoms of crabs include itching and visible nits (lice eggs) and crawling lice. Treatment includes using lice-killing shampoo and washing bedding and clothing in hot water.
Treatment & Diagnosis
Medications & Supplements
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.