Ideally, prevention, by improved sanitation (proper disposal of feces), practicing good hygiene (washing of hands), etc., is used before any drug regimen is administered. Ivermectin is the drug of first choice for treatment because of higher tolerance in patients. Thiabendazole was used previously, but, owing to its high prevalence of side effects (dizziness, vomiting, nausea, malaise) and lower efficacy, it has been superseded by ivermectin and as second-line albendazole. However, these drugs have little effect on the majority of these autoinfective larvae during their migration through the body. Hence, repeated treatments with ivermectin must be administered to kill adult parasites that develop from the autoinfective larvae. This means the full treatment dose of ivermectin every two weeks, to kill all non-larvae adult<unk>  before further reproduction leading to auto-infection, until all larvae capable of maturing into adult<unk>  are extirpated. Follow-up stool samples, potential additional treatment, and blood tests are necessary to guarantee cure. In the UK, mebendazole and piperazine are currently (2007) preferred. Mebendazole has a much higher failure rate in clinical practice than albendazole, thiabendazole, or ivermectin.
Strongyloides stercoralis
Ascaris lumbricoides
Taenia asiatica
Trichuris trichiura
Echinostoma cinetorchis
Taenia saginata
Taenia solium
Schistosoma mansoni