Modawell is one of the most effective medications for sleep disorders. It is approved to treat excessive sleepiness brought on by narcolepsy, a sleeping disorder, or shift work sleep disorder. It is also used to treat obstructive sleep apnea/hypopnea syndrome in conjunction with a breathing apparatus. The main component of Modawell is modafinil, which is dosed at 200mg. Modawell 200mg is a booster that promotes alertness. It functions by altering the concentrations of a few natural chemicals in the region of the brain that regulates wakefulness and sleep. Among other generic brands, modawell is the best and most effective brand.