Phentermine
A compounded oral appetite suppressant prescribed after a provider evaluation as part of a medically supervised weight program. It is not FDA approved.
Compounded drugs are not FDA approved. FDA does not review compounded drugs for safety, effectiveness, or quality before marketing.
See it before your first visit
Photographs of the medication as dispensed.
What it is
Phentermine is a compounded oral medication prescribed by a licensed provider as part of a medically supervised weight program. It is a Schedule IV controlled substance.
It is a compounded medication. It is not FDA approved, and the FDA has not evaluated it for safety, effectiveness, or quality.
How it works
Phentermine is a stimulant that acts on the nervous system to reduce appetite. Your provider will explain the dose and when to take it.
What to expect
Your provider will tell you how and when to take it, will monitor your heart rate and blood pressure, and will review your progress at follow-ups. Dry mouth and trouble sleeping are common. Results vary and no outcome is guaranteed.
Who it is for
Phentermine is prescribed by a licensed provider after an evaluation. It is not appropriate for everyone. Tell your provider if you have heart disease, high blood pressure, an overactive thyroid, glaucoma, a history of substance misuse, or if you are pregnant or breastfeeding.
Side effects
Common side effects include dry mouth, trouble sleeping, increased heart rate, increased blood pressure, nervousness, constipation, and dizziness. Contact your provider right away if you have chest pain, shortness of breath, fainting, or swelling in your legs.
Read this before you start
Compounded drugs are not FDA approved. FDA does not review compounded drugs for safety, effectiveness, or quality before marketing.
Medication availability, formulation, packaging and pharmacy fulfillment vary based on the patient's prescription and location.
Compounded medication. Phentermine is compounded by a pharmacy for an individual patient. It is not FDA approved, and the FDA has not evaluated it for safety, effectiveness, or quality.
Controlled substance. Phentermine is a Schedule IV controlled substance. It can be habit forming. Take it only as prescribed and do not share it.
Heart and blood pressure. It can raise heart rate and blood pressure. Do not use it if you have heart disease or uncontrolled high blood pressure unless your provider says it is appropriate.
MAOIs. Do not use within 14 days of an MAOI.
Pregnancy. Do not use if you are pregnant or breastfeeding.
Tell your provider about all medications you take, including stimulants and antidepressants.
This page is for general information and is not medical advice.
Common questions
Is Phentermine FDA approved?
Not as a compounded medication. The FDA has not evaluated compounded versions for safety, effectiveness, or quality.
Is it a controlled substance?
Yes. It is a Schedule IV controlled substance and requires a valid prescription.
How is it taken?
By mouth, as directed by your prescriber and pharmacy label.
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