Phentermine (Adipex-P, Suprenza, Phen375) is an amphetamine-like medication used to suppress appetite. It acts as an appetite suppressant by affecting the central nervous system. It can help weight loss by decreasing your hunger or making you feel full longer. Phentermine may be recommended as part of an overall weight-loss plan if you're overweight and not if you have to lose just a few kgs.

Phentermine is used together with diet and exercise to treat obesity (overweight) in people with risk factors such as high blood pressure, high cholesterol or diabetes.

Phentermine is approved only for short-term use — maximum 12 weeks. Although phentermine is one of the most commonly prescribed weight-loss medications, it may have some side effects that include:

Increased blood pressure

Dizziness

Dry mouth

Sleeplessness

Nervousness

Constipation

To prevent sleep problems, take this medication early in the day, no later than 6:00pm.

Phentermine isn't a good option if you have certain medical conditions, including heart disease, high blood pressure, an overactive thyroid gland or glaucoma, or if you are pregnant.

Phentermine may be habit forming. Never share phentermine with another person, especially someone with a history of drug abuse or addiction. Keep the medication in a place where others cannot get to it.