QSYMIA and Mental Health Medication Interactions

Critical Drug Interactions

• The American College of Cardiology and other guideline societies recommend avoiding the combination of bupropion with QSYMIA's topiramate component due to increased risk of seizures and other serious neuropsychiatric complications 1, 2
• The combination of bupropion and QSYMIA can cause cognitive impairment, worsening concentration and memory problems, with a moderate to high strength of evidence 1
• QSYMIA can increase the risk of anxiety, panic attacks, and neuropsychiatric adverse effects when combined with other medications, according to the National Institute of Mental Health 1

Individual Medication Interactions with QSYMIA

• The Endocrine Society recommends monitoring patients taking fluoxetine and QSYMIA due to potential increased risk of cognitive impairment and mood changes, with a low to moderate strength of evidence 1
• The American Heart Association suggests that QSYMIA can counteract the blood pressure benefits of doxazosin, requiring close monitoring of blood pressure, with a moderate strength of evidence 1, 3
• The National Institute of Mental Health recommends avoiding the combination of hydroxyzine and QSYMIA due to potential weight gain promotion and cognitive impairment, with a moderate strength of evidence 4, 1

Alternative Weight Loss Medication Recommendations

• The American Diabetes Association recommends semaglutide as a first-line alternative to QSYMIA, producing 10.3-12.4% weight loss at 68 weeks, with a high strength of evidence 3
• The Obesity Society suggests that orlistat is an appropriate third-line alternative, producing modest 2.89-3.1% weight loss at 12 months, with a low to moderate strength of evidence 5, 3

Critical Monitoring if Provider Insists on QSYMIA

• The National Institute of Mental Health recommends monitoring electrolytes, creatinine, and beta-HCG before and during QSYMIA treatment, as well as checking for worsening depression, suicidal ideation, anxiety, and cognitive impairment, with a high strength of evidence 1
• The American College of Cardiology suggests assessing blood pressure and heart rate periodically due to phentermine's sympathomimetic effects, with a moderate strength of evidence 1, 3