Use of undeclared sibutramine can lead to increased risk of seizures, heart attacks, arrhythmia and stroke.
Sibutramine can increase blood pressure and/or pulse rate in some patients and may present a risk for those with a history of coronary artery disease, congestive heart failure, arrhymias or stroke.
Undeclared sibutramine and phenolphthalein make these products unapproved new drugs for which safety and efficacy have not been established.