How to Adderall 20mg helps a person increase the ability control behavior problems? Adderall 20mg tablets contain a combination of amphetamine and dextroamphetamine. These are central nervous system stimulants that affect chemicals in the brain and nerves that contribute to impulse control and hyperactivity. It works by changing the measures of specific natural substances in the brain. Adderall 20mg helps a person to increase the ability to pay attention, control behavior problems, and stay focused on an activity. Adderall 20mg tablets have to be taken exactly as prescribed by your doctor. Do follow all the directions on the prescription label. Doctors occasionally change the dosage of this medication depending on your medical condition and response to treatment. This medication has to be taken with or without food by mouth, as directed by your doctor. But make sure to use the same way to take every dose of this medication. Adderall 20mg is a habit-forming and a drug of abuse. Hence it is recommended to let your doctor know if you have had any problem with alcohol or drug abuse.Try not to take this medication in the event that you have used a MAO inhibitor in the past 14 days, like isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, or tranylcypromine or have received a methylene blue injection. Also adderall is known to cause new or worsening psychosis, especially in people who have a history of depression, bipolar disease, or mental illness. Adderall must not be used if you have: ● Heart disease or coronary artery disease ● Overactive thyroid ● Glaucoma ● Vascular disease or hardening of the arteries ● High blood pressure ● A history of drug or alcohol addiction