What is Phentermine?

Phentermine is a prescription medicine used as a short-term weight loss aid. It works as an appetite suppressant, helping people eat less and lose weight more effectively when combined with exercise, a balanced diet, and lifestyle changes.

It belongs to a class of drugs called sympathomimetic amines, which are similar to amphetamines. Phentermine stimulates the central nervous system (CNS), increasing heart rate and energy while reducing appetite.

Uses of Phentermine

  • Weight Loss Aid for people who are overweight or obese

  • BMI Management in patients with risk factors like diabetes, high blood pressure, or high cholesterol

  • Short-Term Use (Few Weeks): Designed for initial weight loss, not long-term maintenance

Possible Side Effects of Phentermine

  • Common: Dry mouth, insomnia, dizziness, increased heart rate

  • Digestive issues: Constipation or diarrhea

  • Serious (rare): High blood pressure, chest pain, shortness of breath, mood changes

How to Take Phentermine

  • Usually prescribed as 15mg, 30mg, or 37.5mg tablets/capsules

  • Take once daily in the morning, before or after breakfast

  • Avoid late evening doses (can cause insomnia)

  • Follow your doctor’s guidance on diet and exercise along with the medication