Narcolepsy, sleep apnea, or shift work sleep disorder may find relief from their daytime drowsiness with the help of Modalert 200 , a drug containing the active ingredient modafinil. Modalert 200 aids in daytime alertness and concentration by increasing wakefulness and decreasing daytime sleepiness. Effective treatment of excessive drowsiness has been shown to increase productivity and enhance quality of life. Due to the possibility of adverse reactions and drug combinations, its usage in Australia should be monitored closely and prescribed only by a qualified medical practitioner. Effective and safe results from sleep disorders require their proper diagnosis and care.