Home > Faqs > Who should NOT take phentermine?

Who should NOT take phentermine?

Phentermine is not appropriate in the presence of certain medical conditions, and should not be combined with specific medications.

A doctor is the only person who can determine if this medication is right for you.

Phentermine should NOT be taken if you are:

  • Younger than 18 years old
  • Pregnant, nursing or trying to become pregnant
  • Taking any medications that interact negatively with phentermine, including MAOIs or other weight loss pills

It is also NOT appropriate if you have:

  • A BMI less than 27 (if you are already at a healthy weight or underweight)
  • An allergy to phentermine HCl, or any other drug in the sympathetic amine family
  • High blood pressure (hypertension)
  • Cardiovascular disease, or a history of the same
  • Overactive thyroid (hyperthyroidism)
  • Glaucoma
  • A history of alcohol or other drug abuse
  • A history of suffering from an agitated state

Phentermine may not be right for you if you have:

  • Diabetes
  • Kidney disease

When you speak with your doctor about a possible phentermine prescription, it is important to tell him or her about all current and recent medications and supplements, and their dosages. Phentermine can interact with many substances, so it is important that your doctor know about everything you’re taking.

→ Click here to read more about phentermine contraindications.

Scroll to Top