Phentermine
chemical compound
Phentermine, sold under the brand name Adipex-P among others, is a medication used together with diet and exercise to treat obesity. It is available by itself or as the combination phentermine/topiramate. Phentermine is taken by mouth.
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 complications were caused by the fenfluramine component of the "fen-phen" combination. Phentermine is a norepinephrine and dopamine releasing agent (NDRA) and produces stimulant, rewarding, and appetite suppressant effects. Chemically, it is a substituted amphetamine.
Phentermine was approved for medical use in the United States in 1959. It is available as a generic medication. In 2023, it was the 168th most commonly prescribed medication in the United States, with more than 3 million prescriptions.
The public source identifies “Phentermine” as chemical compound. This brief keeps that definition visible, then builds a research path around Phentermine, chemical and compound.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 10, 2026. The linked authority identifier is Q418157. The Library of Congress control number is sh96010153. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1959 and 2023.
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This entry incorporates text from “Phentermine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.