Phentermine is a prescription medication used as a short-term treatment for weight loss in individuals who are overweight or obese. It is classified as a stimulant and appetite suppressant, and it works by affecting the central nervous system to suppress appetite.

Phentermine is typically prescribed for individuals with a body mass index (BMI) of 30 or higher, or for those with a BMI of 27 or higher and with obesity-related health conditions such as high blood pressure, diabetes, or high cholesterol. It is meant to be used as part of a comprehensive weight loss program that includes a reduced-calorie diet, increased physical activity, and behavioral changes.

It is important to note that Phentermine is not a standalone solution for weight loss, and it should only be used under the guidance and supervision of a healthcare professional. It is typically prescribed for a short duration, usually a few weeks to a few months, to avoid the development of tolerance or potential dependence.

As with any medication, Phentermine can have side effects. Common side effects may include increased heart rate, elevated blood pressure, insomnia, restlessness, dry mouth, constipation, and irritability. It is essential to discuss potential risks and benefits with a healthcare provider before starting Phentermine.

Remember, this information is based on the knowledge available up until September 2021, and it is always best to consult with a healthcare professional for the most up-to-date and personalized advice regarding any medication.