###Human: I stopped taking Adderall for some days and it is not effective now. Why? ###Assistant: Hello. It usually takes a few attempts to optimize your ADHD (attention-deficit hyperactivity disorder) medication regimen. It can be somewhat frustrating, but your experience is not uncommon. Your doctor will titrate the dose of Adderall (Dextroamphetamine, Amphetamine) according to your clinical response and tolerability. There is some evidence to show that Wellbutrin (Bupropion) is helpful in adult ADHD, especially if you also have any low mood and anxiety symptoms. So continue having regular reviews with your doctor who will monitor your response. Follow proper sleep hygiene measures and try to exercise regularly. It will have a beneficial effect.