Buy Phentermine Adipex 37.5mg online in USA, Phentermine (phenyl–tertiary-butylamine), with several brand names including Ionamin and Sentis, is a medication used together with diet and exercise to treat obesity. It is taken by mouth for up to a few weeks at a time, after which the benefits subside.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 abuse, but do not include pulmonary hypertension or valvular heart disease, as the latter were caused by the fenfluramine component of the fen-phen drug combination. Use is not recommended during pregnancy or breastfeeding, or with SSRIs or MAO inhibitors.It works mainly as an appetite suppressant, likely as a result of being a CNS stimulant. Chemically, phentermine is a substituted amphetamine