Is Phentermine FDA Approved for Weight Loss | Facts To Know

Is Phentermine FDA Approved for Weight Loss | Facts To Know

Phentermine is a widely used medication for weight loss that has been available for over six decades. This prescription medication works by helping you to suppress appetite and increase energy levels, making it easier for individuals to maintain a calorie-restricted diet. Phentermine is a sympathomimetic amine and is classified as a Schedule IV controlled substance by the DEA due to its potential for abuse and dependence. 

But is phentermine FDA-approved for weight loss?

The short answer is yes!

 Phentermine was first approved by the FDA in 1959 for short-term use as an appetite suppressant for weight loss in obese patients. It is typically prescribed for individuals who have a body mass index (BMI) of 30 or higher or a BMI of 27 or higher with weight-related health conditions such as high blood pressure or diabetes.

 It is currently approved for use in combination with a reduced-calorie diet and exercise for the treatment of obesity. 

The safety and effectiveness of phentermine in weight loss have been studied extensively. This is generally considered a safe and effective medication for short-term use when used as directed by a medical practitioner.

Is Phentermine the Only Standard Treatment For Obesity?

Although Phentermine is a medication that is approved by the FDA for weight loss, it is to be kept in mind that it is not intended to be used as a stand-alone treatment for obesity. Instead, it should be used to incorporate healthy lifestyle changes, such as diet and exercise.

Moreover, the use of phentermine is only approved for short-term use, usually no longer than 12 weeks under no conditions. This means that it is not intended for a long-term weight management process.


Side Effects Associated With Phentermine

While phentermine can be effective in promoting weight loss, it is not bereft of risks. The medication has been known to cause side effects like increased heart rate, high blood pressure, and insomnia. Additionally, it can be habit-forming, leading to the potential for abuse or physical dependence.

For this reason, it is important to consult with your healthcare provider before considering the use of phentermine for weight loss. Your doctor can help you determine if it is safe and the right choice for you. Further, they have the right knowledge and can suggest you FDA-approved diet pills that might be better suited in accordance to your needs.

Can phentermine cause a positive drug test result?


Phentermine has been approved by the FDA for weight loss and can be a valuable tool when used in conjunction with a reduced-calorie diet and exercise. 

However, it is important to note that phentermine is not a stand-alone treatment for obesity and should not be relied upon as the sole method for weight loss. 

 While phentermine can be an effective tool for weight loss, it is essential to weigh the potential risks and benefits and to use it only under the supervision of a healthcare provider. Ultimately, a comprehensive weight loss program that includes lifestyle changes and possibly medication can help individuals achieve their weight loss goals and improve their overall health.


U.S. Food and Drug Administration. Phentermine Hydrochloride. Accessed March 15, 2023

Mayo Clinic. Phentermine (Oral Route). Accessed March 15, 2023.


Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top