A new study by researchers at the Mayo Clinic has found that a single 25 mg dose of Adderall, when taken without a prescription, can cause significant increases in both heart rate and blood pressure in healthy young adults. The findings raise important questions about the cardiovascular effects of using this stimulant medication outside of medical supervision.
The research, published in Mayo Clinic Proceedings, measured acute cardiovascular responses in participants who do not normally use Adderall or have a medical need for it. Study authors report that even one dose of the combined amphetamine-dextroamphetamine salts led to noticeable heart stress, highlighting potential risks for recreational users or those misusing the drug to enhance focus or stay awake.
Dr. Anna Svatikova, a cardiologist at Mayo Clinic and senior author of the study, explained that while the medication is considered safe when prescribed for attention-deficit/hyperactivity disorder (ADHD) and monitored by physicians, its cardiovascular effects can be underestimated when taken outside a clinical context.
Among the most striking findings was how the participants’ heart rates and blood pressure responded with the stimulant in their systems. In tests where subjects stood up after taking Adderall, their heart rate increases nearly doubled compared with baseline readings before ingestion—an indicator of the heightened sympathetic stress response.
Lead author Dr. Kiran Somers noted that even healthy young adults with no underlying heart conditions experienced significant cardiovascular stimulation after a single dose. These acute changes suggest that non-medical use of Adderall isn’t as benign as some might assume.
The study emphasizes that the results specifically reflect off-prescription usage and do not apply to long-term, medically supervised treatment of ADHD, where therapeutic benefits and safety are well documented. However, with reports of rising misuse of stimulant medications among students and young professionals, the new data points to possible short-term health hazards that shouldn’t be ignored.
As misuse of prescription stimulants remains a public health concern in many communities, the researchers hope their findings will inform both clinicians and the public about the hidden cardiovascular risks of unsupervised use.
