Liposuction and Tummy Tuck While on Diet Pills?

Thank you for your question. It is hard to provided with a valid medical opinion without photos.  I would suggest to be treated by board certificated plastic surgeon with experience in this procedure, to get the best desired results.
Kind Regards,Dr. Emmanuel Mallol Cotes.-

It really depends on the mechanism of action of these diet pills but you should stop these for a minimum of two weeks prior to surgery and possibley longer. Again depending on the mechanism of action, you may want to consider blood work to evaluate possible alterations that could effect your surgery.
Discuss your medications with your surgeon and the anesthesiologist if possible. You may also want to look up any potential adverse drug interactions on the internet and provide these to your surgeon.

Many diet pills work because they suppress appetite and speed up your metabolism. Their effects can be dangerous when combined with the drugs needed for anesthesia, in that they can make your heart irritable, which could potentially result in either intra-operative or post-operative arrhythmias (sensation of fast or strong heart beats).
In body contouring procedures such as tummy tucks, it is important that the patient has sufficient nutritional reserves to promote wound healing. Going into a major operation in a "malnourished" state is not advisable because you may very well run the risk of infections and delayed wound healing. Please consult with both your Surgeon and Anesthesiologist as to when to suspend these drugs.