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.
The short acting form of Adderall is taken by patients twice a day in tablet form. The recommended starting dose for children 3 to 5 years of age 2.5 mg daily; children 6 years or older is 5 mg once or twice daily. Depending on the individual, an adultâs usual dose is 5 mg to 60 mg daily.
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.