Waklert 150 controls brain neurotransmitters to keep you alert. Waklert 150 mg increases dopamine and norepinephrine, like Modalert 100. Neurotransmitters regulate cognition and attentiveness. Its mechanism is unknown, however, armodafinil may increase alertness and decrease sleepiness. Treating narcolepsy and shift work sleep disturbance are common uses. Medical supervision is essential to avoid adverse effects and maximize efficacy.