User:Mr. Ibrahem/Phentermine

Phentermine ( phen yl- ter tiary-butyla mine ), sold under the brand name Ionamin among others, is a medication used together with diet and exercise to treat obesity. It is taken by mouth for up to a few weeks. After a few weeks the beneficial effects no longer occur. It is also available as the combination phentermine/topiramate.

Common side effects include a fast heart beat, high blood pressure, trouble sleeping, dizziness, and restlessness. Serious side effects may include pulmonary hypertension, valvular heart disease, and abuse. Use is not recommended during pregnancy or breastfeeding. Use is not recommended together with SSRIs or MAO inhibitors. It works as an appetite suppressant likely as a result of being a CNS stimulant. Chemically, phentermine is a substituted amphetamine.

Phentermine was approved for medical use in the United States in 1959. It is available as a generic medication. The wholesale cost of a month supply in the United States is about US$2.55. In 2017, it was the 210th most commonly prescribed medication in the United States, with more than two million prescriptions. Phentermine was withdrawn from the market in the United Kingdom in 2000 while the combination medication fen-phen, of which it was a part, was withdrawn from the market in 1997 due to side effects.