In 2012 the U.S. Food and Drug Administration approved phentermine/topiramate ER as an adjunct to a reduced-calorie diet and increased physical activity for chronic weight management in adults with an initial body mass index (BMI) of at least 30 kg/m², or at least 27 kg/m² (overweight) in the presence of at least one weight-related comorbidity such as hypertension, type 2 diabetes mellitus, or dyslipidemia.[1][3] Phentermine/topiramate ER is available in certified retail pharmacies nationwide and also available through a certified mail-order pharmacy network.[4] Approval was denied by European regulatory authorities, who cited potential risk to the heart and blood vessels, psychiatric side effects, and cognitive side effects in explaining their decision.[5]</small>

In 2012 the U.S. Food and Drug Administration approved phentermine/topiramate ER as an adjunct to a reduced-calorie diet and increased physical activity for chronic weight management in adults with an initial body mass index (BMI) of at least 30 kg/m², or at least 27 kg/m² (overweight) in the presence of at least one weight-related comorbidity such as hypertension, type 2 diabetes mellitus, or dyslipidemia.[1][3] Phentermine/topiramate ER is available in certified retail pharmacies nationwide and also available through a certified mail-order pharmacy network.[4] Approval was denied by European regulatory authorities, who cited potential risk to the heart and blood vessels, psychiatric side effects, and cognitive side effects in explaining their decision.[5]</small>