Efavirenz/SUSTIVA is an NNRTI approved in 1998. It is usually well tolerated with some people reporting mild side effects. The most common side effect is disturbed sleep, insomnia, and odd dreams. However a very few people report the opposite effects. Tell your doctor if you have had hepatitis, high cholesterol, or have a history of depression. Take once a day at bedtime on an empty stomach to avoid fogginess and impaired concentration.
Do not take if you are pregnant.