Yes, Adderall, an amphetamine prescribed for ADHD (attention deficit hyperactivity disorder), can cause nervousness and anxiety. Adderall, which is a mixture of amphetamine and dextroamphetamine, is classified as a CNS (central nervous system) stimulant, and active use of Adderall can induce anxiety symptoms.
Unfortunately, Adderall is being diverted and distributed as a drug of abuse, so when you are abusing Adderall and intoxicated on it, this can cause anxiety symptoms. Also, when you are withdrawing from Adderall, then this can also cause anxiety and nervousness. This is a major problem with stimulants...they are anxiety-provoking, both in the intoxication phase and the withdrawal phase.