The search term "adipex" refers to Adipex-P®, the brand name of the prescription drug phentermine distributed by Gate Pharmaceuticals which many people look for online. Phentermine is an appetite suppressant. Its chemical name is phenyl-tertiary-butylamine hydrochloride, and it first received approval from the FDA in 1959. Since that time, it has been sold under a number of brand names, including Adipex-P, Ionamin® (Medeva Pharmaceuticals), Fastin® (King Pharmaceuticals for SmithKline Beecham), Obenix, Phentercot, Phentride, Pro-Fast, Teramine, and Zantryl.

• Adipex-P
  Official URL for the Adipex-P branded version of phentermine.
  
  
• DrugDigest - Drug Library - Adipex-P
  Extensive information about Adipex-P, including dosage, usage, side effects, and interactions and comparisons with other drugs.
  
  
• Phentermine.com
  A veritable phentermine portal, with a community of over 4,000 users.
  
  
• RxList Monographs - Phentermine
  A complete monograph, including description, clinical pharmacology, and patient information.
  
  
• Drugs.com - Phentermine
  An overview of phentermine with information regarding drug interactions, uses, and side effects.
  
  
• MedicineNet.com - Phentermine
  Information on phentermine from board certified physicians.
  
  
• Healthtouch - Appetite Suppressants, Sympathomimetic
  An overview of various appetite suppressants in the same class as phentermine.