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).
Vyvanse vs. Adderall dosage. Vyvanse. The recommended starting dose of Vyvanse for treating ADHD in adults is 30 mg and for pediatric patients ages (6-12) it is 20 to 30 mg once daily in the morning. Doses may be increased by 10-20 mg/day at weekly intervals. The maximum dose is 70 mg daily.