Ivermectin is a similar medication which treats mange, ear mites and heartworm prevention.
The drugs used in oral prescription medications include either ivermectin or milbemycin oxime.
Ivermectin is often given under the brand name Heartguard, and Milbemycin oxime is often prescribed under the brand names Interceptor and Sentinel.
Ivermectin (Stromectol), an oral treatment for intestinal parasites, is effective against head lice but as of 2004 had not been approved for that use by the FDA.
In addition to topical medications, the doctor may prescribe oral ivermectin, a drug that was originally developed for veterinary practice as a broad-spectrum antiparasite agent.