|
Topical
|
[55, 56] |
Benzyl benzoate |
25 % solution |
one or several consecutive 24-h applications |
pregnant women and infants |
burning or stinging, pruritus, dermatitis, convulsions (rare) |
In use since 1930s; possible neurological complications with misuse; withdrawn in the European Union due to neurotoxicity concerns |
[23, 56–58] |
Permethrin |
5 % cream (8–14 h) then wash off |
apply overnight |
infants aged <2 months |
mild burning, itching stinging, pruritus, erythema, tingling, persistent excoriation, dystonia (rare), convulsions (rare) |
in use since the 1980s; relatively expensive; growing resistance among scabies mites poor compliance reported in mass community intervention programs |
[59, 60] |
Sulphur |
2–10 % precipitate in petroleum base |
apply for 24 h, and then wash and reapply repeat applications for 3 days |
|
noxious, malodorous messy; not given as first-line agents; multiple applications required; can cause skin irritation; |
has been used for centuries; indicated in infants, pregnant and lactating women; inexpensive |
|
Oral
|
[53, 61–63] |
Ivermectin |
200 μg/kg orally repeated after 1–2 weeks |
|
children aged <5 years.; children <15 kg; pregnant or lactating women |
transient side effects: gastrointestinal disorders; pustular rash, cellulitis; abdominal pain, diarrhoea, headache, vomiting, hypotension, toxic epidermal necrosis, mucosal drug eruption, fever, anorexia, lymph node swelling, eosinophilia, pain of joint and muscles, mazzotti reaction |
in use since 1980’s (for the mass treatment of onchocerciasis, and filariasis); not approved for the treatment of typical scabies (except in Japan, Brazil, France); only indicated if symptoms persists 3 weeks after application of benzyl benzoate or permethrin; no ovicidal activity, thus repeat treatment is required; one report of increased deaths among elderly patients during scabies outbreak in an institutional setting (1997); there has been considerable criticism on the validity of this report, no other studies have replicated these findings |