According to WebMD, mild tiredness is not a typical side effect of Adderall use. However, extreme tiredness is a dangerous side effect of taking Adderall, and a person experiencing this should get medical help immediately.
Adderall is a combination of amphetamine and dextroamphetamine. These stimulants are used to treat attention deficit hyperactivity disorder (ADHD). Scientists believe Adderall works by restoring the balance of the brain's neurotransmitters.
The most common side effects of Adderall are decreased appetite, weight loss, nervousness, nausea, dizziness, headache and difficulty sleeping. A patient experiencing any of these symptoms should notify his doctor.
Some dangerously serious side effects include extreme tiredness, difficulty breathing/shortness of breath, seizures, jaw/chest/left arm pain, fast or irregular heartbeat, slurred speech and blurred vision. Anyone experiencing one or more of these symptoms needs medical help right away.