Modvifil 200mg works to prevent excessive sleep disorders (unwanted sleep during the day) caused by narcolepsy and sleep apnea. It helps by enhancing awareness and induce alertness in the brain. People having night shifts or work shifts also consume Modvifil 200mg to treat unwanted sleep, due to the change in their regular sleep routine it often makes them inattentive and drowsy. Modafinil is an active ingredient in Modvifil 200 mg. Modafinil is a more intense form of constituent which works effectively to cure narcolepsy or sleep apnea. Modvifil 200 mg does not disturb the normal healthy sleep routine in any way.