Phentermine 37.5 Reviews [2019]

Phentermine 37.5 mg is the maximum daily dose of phentermine in most countries. 

This drug helps patients lose weight by acting as a central nervous system stimulant to suppress appetite and boost energy. It is the most-prescribed prescription appetite suppressant in America, and phentermine 37.5 mg is the most popular dose. 

Even though prescribing guidelines instruct practitioners to use the lowest effective dose of this stimulant, many doctors start new patients on phentermine 37.5. This practice may be related to doctors´ and patients´ shared interest in achieving maximum results in the limited, 12-week treatment period.

Read more about phentermine 37.5 mg.

Due to the high demand for these pills, phentermine 37.5 mg is manufactured by several different companies. It is available as both capsules and tablets, in both brand name and generic pills ( 1 , 2 ). 

Nonetheless: all forms of phentermine 37.5 mg, from all manufacturers, are prescription-only due to the main ingredient’s status as a class IV controlled substance (both in the US and abroad).

It is not legal or safe to buy phentermine 37.5 online.

The photos below show a few popular brands of generic phentermine 37.5:

Generic phentermine 37.5 mg tablet (white with blue specks, Able Laboratories Inc)
Generic phentermine 37.5 mg capsule (white/oblong, Actavis Totowa LLC)
generic phentermine 37.5 mg tablet (white, K 25)
generic phentermine 37.5 mg capsule (K 29)

The brand name preparation of phentermine 37.5 in the US is called Adipex-P.

Phentermine 37.5 mg Reviews for Weight Loss

Reading real phentermine 37.5 reviews can help you get an idea of the average monthly weight loss on phentermine, as well as the commonality of certain side effects. 

Here are the most recent phentermine 37.5 reviews submitted on

4.2 / 5 Reviewer
{{ reviewsOverall }} / 5 (115 votes) Users
  • This maximum dose (37.5mg) produces the strongest appetite suppression and boost in energy.
  • Phentermine 37.5 mg is available as both generic and brand name preparations.
  • This dose is available in both tablet and capsule form.
  • This highest dose of phentermine can only be taken once per day (in the early morning).
  • Some people suffer from more side effects because of the high dose of stimulant medication.
  • There is no higher dose, so you can never increase your daily dosage if phentermine stops working.
Phentermine 37.5 mg is the maximum daily dose of phentermine in most countries and can only be taken once a day. It produces significant weight loss results, but some patients experience more side effects with this high dose. Phentermine 37.5 mg made by several different companies and sold in both capsule and tablet form.
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  1. Hendricks, E. J., Rothman, R. B., & Greenway, F. L. (2009). How Physician Obesity Specialists Use Drugs to Treat Obesity. Obesity, 17(9), 1730-1735. doi:10.1038/oby.2009.69

  2. U.S. Food and Drug Administration. (2012). Adipex-P (phentermine hydrochloride) capsules label [Brochure].

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