Amphetamine/dextroamphetamine Patient Tips
Medically reviewed on Sep 15, 2017 by C. Fookes, BPharm.
How it works
- Amphetamine-dextroamphetamine is a combination medicine containing a mixture of amphetamine and dextroamphetamine salts and isomers. These act in the brain to increase the release of neurotransmitters (chemicals that help send messages around the brain).
- Amphetamine-dextroamphetamine belongs to the class of medicines known as central nervous system stimulants.
- Used in the treatment of Attention Deficit Hyperactivity Disorder (ADHD) to increase attention and decrease hyperactivity and impulsiveness.
- Also used to treat narcolepsy (spontaneous, uncontrollable, falling asleep).
- When given for ADHD, amphetamine-dextroamphetamine should be used in conjunction with other treatment options, such as psychotherapy, education about the disorder, and social integration advice.
- Generic amphetamine-dextroamphetamine is available (may be called mixed amphetamine salts, MAS, or M. amphet salts).
If you are between the ages of 18 and 60, take no other medication or have no other medical conditions, side effects you are more likely to experience include:
- Insomnia, decreased appetite, blurred vision, and abdominal pain.
- May also cause heart palpitations, constipation and other GI disturbances, weight loss, changes in libido, alopecia (hair loss), elevated blood pressure and muscle twitching, stiffness, or tightness.
- May affect blood circulation in the fingers or toes causing ulceration or tissue breakdown.
- May cause dependence and tolerance and be subject to abuse. May cause a withdrawal syndrome on abrupt discontinuation (symptoms include extreme fatigue, depression, sleep disturbances) taper off slowly under medical advice.
- High potential for abuse. May be sought after by drug abusers or people with addiction disorders. Misuse may cause sudden death or cardiovascular events. Overdosage has resulted in psychosis which is indistinguishable from schizophrenia.
- May exacerbate pre-existing psychiatric disorders such as bipolar disorder, psychotic disorder or mania; and increase anxiety, tension, and agitation.
- May impair judgment or reaction skills; exercise caution before driving or operating machinery until the full effects of amphetamine-dextroamphetamine are known. Avoid alcohol.
- Reports indicate some temporary slowing of growth may occur when regular amphetamine-dextroamphetamine is given to children aged 7 through 10 years. Doctors should monitor height and weight and consider treatment interruption if growth suppression suspected.
- May increase the risk of seizures and peripheral circulatory problems and cause visual problems.
- May not be suitable for people with certain heart conditions, as the risk of sudden death is increased even with usual dosages. May also not be suitable for people with thyroid disease, glaucoma, psychiatric disease, a history of drug abuse, a tic disorder, seizures, or liver or kidney disease or circulation problems.
- May interact with a number of other drugs including other antidepressants, medications used to treat heart disease, blood thinners, decongestants, tramadol, and proton pump inhibitors.
- Extreme fatigue and depression have been reported when amphetamine-dextroamphetamine has been stopped suddenly, particularly in those who have been taking more than the recommended dose.
- Rare cases of priapism (painful erections more than 6 hours in duration) have been reported.
Notes: In general, seniors or children, people with certain medical conditions (such as liver or kidney problems, heart disease, diabetes, seizures) or people who take other medications are more at risk of developing a wider range of side effects. For a complete list of all side effects, click here.
- Administer with or without food. Avoid alcohol.
- Best administered in the morning, soon after awakening. Avoid administration of late evening doses due to the risk of insomnia. Take exactly as directed by your doctor and never increase the dosage without his or her advice.
- Slow release capsules may be swallowed whole or the capsule opened and the contents sprinkled on applesauce and swallowed without chewing.
- Monitor growth during treatment; interrupt treatment in patients not growing or gaining weight.
- Monitor blood pressure, behavior, growth, weight loss, and circulation in hands and feet.
- Ensure your child partakes in other psychological, educational, or social treatment measures as recommended by your doctor as these are also an important part of ADHD treatment.
- Do not suddenly stop taking amphetamine-dextroamphetamine, unless it is an emergency. Sudden discontinuation may precipitate a withdrawal reaction. Symptoms include extreme tiredness, depression, or agitation.
- Seek medical advice if symptoms persist or worsen despite treatment, or if psychotic symptoms (such as hearing voices or signs of paranoia) or hallucinations develop.
- Seek urgent medical help if you experience chest pain, shortness of breath or fainting while taking amphetamine-dextroamphetamine or other worrying symptoms such as unexplained nausea or vomiting or a fast heartbeat.
- Do not drive or operate machinery if amphetamine-dextroamphetamine impairs your judgment or reaction skills. Alcohol may contribute to these effects and should be avoided.
- Seek medical advice if any new numbness, pain, skin color change, sensitivity or unexplained wounds occur in your fingers or toes.
Response and Effectiveness
- Time to peak effect is about 3 hours for the immediate-release tablets and 7 hours for the slow-release capsules.
Dextroamphetamine Saccharate, Amphetamine Aspartate, Dextroamphetamine Sulfate, Amphetamine Sulfate [Package Insert]. Revised 08/2017. CorePharma, LLC https://www.drugs.com/pro/dextroamphetamine-saccharate-amphetamine-aspartate-dextroamphetamine-sulfate-amphetamine-sulfate.html
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- Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use amphetamine/dextroamphetamine only for the indication prescribed.
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