You should not use  dextroamphetamine if you have glaucoma, overactive thyroid, severe agitation, moderate to severe high blood pressure, heart disease or coronary artery disease, or a history of drug or alcohol addiction.
Dextroamphetamine may be habit-forming, and this medicine is a drug of abuse. Tell your doctor if you have had problems with drug or alcohol abuse.
Stimulants have caused stroke, heart attack, and sudden death in people with high blood pressure, heart disease, or a heart defect.
Do not use dextroamphetamine if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.
Dextroamphetamine may cause new or worsening psychosis (unusual thoughts or behavior), especially if you have a history of depression, mental illness, or bipolar disorder.
You may have blood circulation problems that can cause numbness, pain, or discoloration in your fingers or toes.
Call your doctor right away if you have: signs of heart problems--chest pain, feeling light-headed or short of breath; signs of psychosis--paranoia, aggression, new behavior problems, seeing or hearing things that are not real; signs of circulation problems--unexplained wounds on your fingers or toes.
Before taking this medicine
You should not use dextroamphetamine if you are allergic to any stimulant medicine, or if you have:
moderate to severe high blood pressure;
heart disease or coronary artery disease (hardened arteries);
overactive thyroid;
glaucoma;
severe anxiety, tension, or agitation (stimulant medicine can make these symptoms worse); or
a history of drug or alcohol addiction.
Do not use dextroamphetamine if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
Some medicines can interact with dextroamphetamine and cause a serious condition called serotonin syndrome. Be sure your doctor knows if you also take opioid medicine, herbal products, or medicine for depression, mental illness, Parkinson's disease, migraine headaches, serious infections, or prevention of nausea and vomiting. Ask your doctor before making any changes in how or when you take your medications.
Stimulants have caused stroke, heart attack, and sudden death in certain people. Tell your doctor if you have:
heart problems or a congenital heart defect;
high blood pressure; or
a family history of heart disease or sudden death.
To make sure this medicine is safe for you, tell your doctor if you or anyone in your family has ever had:
depression, mental illness, bipolar disorder, psychosis, or suicidal thoughts or actions;
motor tics (muscle twitches) or Tourette's syndrome;
seizures or epilepsy;
an abnormal brain wave test (EEG); or
blood circulation problems in the hands or feet.
Taking dextroamphetamine during pregnancy can cause premature birth, low birth weight, or withdrawal symptoms in the newborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
Dextroamphetamine can pass into breast milk and may harm a nursing baby. You should not breast-feed while using this medicine.
Dextroamphetamine is not approved for use by anyone younger than 3 years old. Dextroamphetamine extended-release capsules are not for use in children younger than 6 years old.
