In a case of HIV infection, 600 MG Efavirenz Tablets IP along with other medicines are prescribed by the doctors. This medicine along with other medicines, mainly NRITs works to strengthen the immune system by decreasing the HIV in the body. Patients with HIV infection can live a quality life by taking such medicines. This drug minimizes the HIV complications. A 600 mg dose is prescribed to be taken once per day, mainly at bedtime on an empty stomach.