After the nicotine is gone, and the brain stops releasing the positive neurotransmitters, smokeless tobacco users feel tired, depressed, and down. Nicotine also causes the brain to release a chemical called dopamine. Other very addictive drugs like cocaine make the brain release dopamine, too.
Treating Narcolepsy. The starting dose of Adderall for narcolepsy in children (age 6 to 12) is 5 mg daily (this dose may be increased by 5 mg per week if necessary). For people 12 and older, the starting dose of Adderall for narcolepsy is 10 mg daily (increased by 10 mg per week if needed).
Best Answer: You're absolutely right. Immediate-release Adderall takes affect immediately, within 15-30 minutes. 2.5mg is just your starting dose (yeah, it is a tiny dose). You're doctor will most likely increase your dose after a week or month.