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).
ADDERALL XRÂ® demonstrates linear pharmacokinetics over the dose range of 20 to 60 mg in adults and adolescents weighing greater than 75 kg/165lbs, and over the dose range of 10 to 40 mg in adolescents weighing less than or equal to 75 kg/165 lbs, and 5 to 30 mg in children aged 6 to 12 years.