Dextroamphetamine - Effects on the Body

Effects on the Body

Common side effects of dextroamphetamine use include dry mouth, headache, nausea, dizziness, restlessness, increased blood pressure and pulse rate, loss of appetite, difficulty sleeping, and either diarrhea or constipation. Higher doses can result in fever, an unusually fast heartbeat, chest pain, blurred vision, ticsRepetitive, involuntary jerky movements, eye blinking, or vocal sounds that patients cannot suppress on their own., tremors, moodiness, and even aggression.

Amphetamine Psychosis

High-dose dextroamphetamine abusers can develop "amphetamine psychosis" after a week or so of continuous use. Amphetamine psychosisPronounced sy-KOH-sis; a severe mental disorder that often causes hallucinations and makes it difficult for people to distinguish what is real from what is imagined. affects the way the mind functions, causing feelings of severe paranoiaAbnormal feelings of suspicion and fear., and all kinds of hallucinations—visual, auditory, and tactile. Tactile hallucinations make the user feel as if bugs, worms, or snakes are crawling on their skin. Such sensations are very real, and therefore extremely frightening, to the individual who is experiencing them. As a result, violent reactions sometimes occur during amphetamine psychosis. Once the amphetamine abuser is free of the drug, however, the psychosis goes away. Symptoms such as mental confusion and memory problems may linger, however.

Monitoring Dosage

When used for medical purposes, dextroamphetamines are prescribed at the lowest possible dosage. The dosage is then raised gradually by a doctor until the desired action is achieved. All amphetamines are highly addictive. According to the 59th edition of the Physicians' Desk Reference: "There are reports of patients who have increased the dosage to many times that recommended," leading to "tolerance, extreme psychological dependenceThe belief that a person needs to take a certain substance in order to function, whether that person really does or not., and severe social disability."

Tolerance occurs when it takes more and more of the drug to achieve the effect or high originally produced by smaller doses. Tolerance to amphetamines can occur quickly and often leads to overdose. Symptoms of dextroamphetamine overdose include extreme confusion and anxiety, hallucinations, severe tics or shaking, an irregular heartbeat, extremely high blood pressure, vomiting, stomach cramps, convulsions, and coma. An overdose of dextroamphetamine—or any other amphetamine, for that matter—can be fatal.

Finding the Right Treatment

Dextroamphetamines such as Dexedrine and amphetamine/dextroamphetamine mixtures such as Adderall are commonly prescribed by physicians to treat ADHD. Finding the right drug to treat a child or an adult with ADHD is often a process of "trial and error." Doctors try one drug, observe the effects, and decide whether an alternate form of treatment is advisable.

Establishing a safe and effective drug treatment can be especially difficult when it comes to children. Some evidence indicates that children experiencing ADHD-like symptoms may actually be suffering from severe anxiety, or a severe state of fear or worry, which is worsened by the use of stimulants. In these very rare cases, amphetamines and dextroamphetamines can cause overstimulation in the child.

In one case reported in the May 2004, issue of Pediatrics, doctors raised the question about whether dextroamphetamines may have contributed to psychotic behavior in a seven-year-old ADHD patient. His symptoms, including extreme agitation, an elevated temperature, ranting and raving, and hallucinations, all disappeared when the stimulant prescription was discontinued and an anti-anxiety drug was administered. Results such as these suggest that the child was suffering from severe anxiety rather than ADHD, even though his symptoms mirrored those of a typical ADHD patient.

Dextroamphetamine as a Treatment for ADHD

Amphetamines and dextroamphetamines typically give the user a boost of energy. In people with attention-deficit/hyperactivity disorder (ADHD), however, these very same drugs help to calm them down, allowing them to better focus their energy. Individuals with ADHD typically have a short attention span, and they tend to get distracted quite easily. They may also show signs of hyperactivity, impulsive behavior, and emotional instability. It can be a challenge for people with untreated ADHD to concentrate their attention and control their behavior. Drugs like Dexedrine, a dextroamphetamine sulfate, and Adderall, a combination of amphetamine and dextroamphetamine salts, help manage the symptoms of ADHD by acting on the part of the brain that decides when and how to act.

According to an article in Phi Delta Kappan, it is essential that parents or caregivers of children and teens with ADHD: 1) be informed about the effects of the drugs that have been prescribed for treatment; 2) know the consequences that might arise if these drugs are discontinued; and 3) accept the responsibility to stay in close touch with the child's doctor and therapist. In most cases, drug treatment for ADHD must be combined with some sort of counseling or therapy to achieve the highest success rates. One of the most popular and successful therapeutic methods as of 2005 was cognitive behavioral therapyA type of therapy that helps people recognize and change negative patterns of thinking and behavior. (CBT), or "talk" therapy. Cognitive behavioral therapy helps patients develop better coping skills and change their negative patterns of thinking and behavior into positive ones.