Isotretinoin is indicated for nodular acne or severe acne that is unresponsive to conventional therapies. The usual dose is 0.5 to 1.0 mg/kg/day for 20 weeks, or a cumulative dose of 120 mg/kg.

Find out if this commonly prescribed antibiotic is right for you Medically reviewed by William Truswell, MD Doxycycline is an ...

However, there are different types of acne lesion, including comedones, papules, pustules, nodules and cysts. “Comedones consist of a widened hair follicle, which can become filled with keratin ...