Currently, there are only limited options for an oral weight loss medication and all have their limitations and side-effects. Phentermine
is an amphetamine has been approved by the fda
and has been used for many years as a weight loss formula
. It is used for a limited period of time to speed weight loss in overweight
people who are exercising and eating a low-calorie
diet and belongs to a class of medications called anorectics. A combination of Phentermine and topiramate
(brand name topamaxÂ®) or also known as qnexa is under consideration by the fda for approval in 2012. Bontril is another amphetamine-related weight-loss drug, but like any amphetamine, are potentially addictive.
Empatic is a combination drug consisting of two already fda approved medications, zonisamide and bupropion
, for seizures and antidepressant, respectively - the combination is being tested for weight loss.
Some appetite suppressant
drugs such as Fenfluramine (also known as fen phen), chlorphentermine, and aminorex induced a heart valve abnormalities as well as pulmonary hypertension
. These drugs were eventually withdrawn from the market.
Lorcaserin, a selective 5-ht(2c) receptor agonist, produced modest weight loss but was not initially approved by the fda - resubmission is being consider in 2012. The monoaminergic re-uptake inhibitor tesofensine has also been shown to produce impressive weight loss in smaller-scale clinical studies and future tests are planned.
The ads you see on the internet are for non-proven weight loss treatments.