Active ingredients: The differences between prescription and OTC lice treatments are the active ingredients, treatment protocols (some require more than one application), and side-effect and safety profiles. OTC: 1. Permethrin (NIX) 2. Pyrethrins and piperonyl butoxide (Rid) Rx: 1. Benzyl alcohol 5% (Ulesfia) 2. Malathion lotion (Ovide)
Answered 3/7/2015
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