Amphetamine salts side effects
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Side Effects of Amphetamine Salts: A Comprehensive Overview
Common Adverse Effects of Amphetamine Salts
Decreased Appetite and Insomnia
One of the most frequently reported side effects of amphetamine salts, including mixed amphetamine salts (MAS) and extended-release formulations, is decreased appetite. This side effect is particularly prevalent at higher doses and is consistently observed across various studies Stein2011Punja2016Brams2017. Insomnia is another common adverse event associated with amphetamine salts, often reported alongside decreased appetite. Both of these side effects tend to be dose-dependent, becoming more pronounced as the dosage increases Stein2011Punja2016Brams2017.
Gastrointestinal Issues
Amphetamine salts can also cause gastrointestinal problems such as abdominal pain, nausea, and vomiting. These side effects are less common than decreased appetite and insomnia but are still significant. Studies have shown that the incidence of these gastrointestinal issues is higher in children and adolescents treated with amphetamine salts compared to those receiving a placebo .
Headaches and Anxiety
Headaches and anxiety are additional side effects that have been reported in patients taking amphetamine salts. These symptoms are generally mild to moderate in intensity but can affect the overall quality of life of the patients Punja2016Spencer2008.
Specific Side Effects in Different Populations
Pediatric Population
In children and adolescents with ADHD, the side effects of amphetamine salts are similar to those observed in adults but can be more pronounced. For instance, a study on SHP465 MAS in children and adolescents reported that decreased appetite, insomnia, irritability, nausea, and decreased weight were common side effects . Another study comparing MAS XR and atomoxetine in school-aged children found that adverse events were similar for both treatment groups, with MAS XR showing a higher efficacy but also a higher incidence of side effects .
Adults
In adults, the side effects of amphetamine salts are consistent with those observed in younger populations. A study on triple-bead MAS in adults with ADHD reported that the most common treatment-emergent adverse events were insomnia, dry mouth, decreased appetite, headache, and weight loss . These side effects were generally mild to moderate and tended to decrease over time.
Special Cases: Cognitive Enhancement and Sexual Dysfunction
Interestingly, amphetamine salts are sometimes used off-label for cognitive enhancement in healthy individuals. However, a study found that while users perceived an improvement in cognitive performance, objective measures did not support this perception, and side effects like insomnia and jitters were noted . Additionally, a pilot study explored the use of amphetamine salts for treating delayed orgasm and anorgasmia in men, finding minimal side effects such as insomnia and jitters .
Conclusion
Amphetamine salts are effective in managing ADHD symptoms but come with a range of side effects, including decreased appetite, insomnia, gastrointestinal issues, headaches, and anxiety. These side effects are generally dose-dependent and can vary in intensity across different populations. While the benefits of amphetamine salts in treating ADHD are well-documented, it is crucial to monitor and manage these side effects to ensure the overall well-being of the patients.
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