False negative pregnancy test on phentermine?

Phentermine is a sympathomimetic amine drug used as an appetite suppressant. It is commonly used to treat obesity. Phentermine is usually used short-term and is often prescribed in conjunction with other weight-loss measures such as diet and exercise.

There are no known reports or evidence to suggest that phentermine can cause false negative pregnancy tests. However, it is important to note that phentermine can interact with certain medications, so if you are taking phentermine and plan to take a pregnancy test, it is important to consult your healthcare provider to ensure there are no potential interactions.