what is phentermine

Phentermine is a prescription medication used to help with weight loss by decreasing appetite. It is an appetite suppressant and belongs to a class of drugs called sympathomimetic amines. Phentermine is used with a doctor-approved exercise, behavior change, and reduced-calorie diet program to help overweight people lose weight. It is usually taken once a day, 1 hour before breakfast or 1 to 2 hours after breakfast, and the dosage and length of treatment are based on the patients medical condition and response to treatment. Phentermine can be habit-forming, and it is important to follow the doctors instructions carefully to avoid withdrawal symptoms. Some of the common side effects of phentermine include heart palpitations, high blood pressure, and trouble sleeping.