Stromectol has been proven as effective to resistant lice invasions. It is considered as a second line treatment to permethrin (Kwell). However, such use remains unapproved by the FDA.
Possible side effects: Tachycardia has been reported in 200 mcg dose.
Safety: Not recommended for pregnant and lactating women. Stromectol has not been proven safe for use in children below five years old. Caution should be observed in individuals with liver, kidney and heart problems.
Direction for use: 200 mcg tablet once a day for seven to ten days.