Phentermine is a widely prescribed medication used for weight loss in individuals who are obese or overweight and have certain risk factors such as high blood pressure, high cholesterol, or diabetes. It belongs to a class of drugs known as sympathomimetic amines, which work by suppressing appetite and increasing the body’s metabolism. Phentermine is typically recommended for short-term use, usually up to 12 weeks, as part of a comprehensive weight loss plan that includes diet, exercise, and behavior modification. While it can be effective in helping individuals shed excess pounds, it’s essential to use phentermine under the supervision of a healthcare provider due to potential side effects such as increased heart rate, elevated blood pressure, insomnia, and dependence.