Phentermine-Topiramate

Pronounced

"FEN-ter-meen/toe-PYRE-a-mate"

Uses

This medication is used with a doctor-approved exercise, behavior change, and reduced-calorie diet program to help you lose weight. It is used by certain overweight people, such as those who are obese or have weight-related medical problems. Losing weight and keeping it off can lessen the many health risks that come with obesity, including heart disease, diabetes, high blood pressure, and a shorter life.

It is not known how this medication helps people to lose weight. It may work by decreasing your appetite, by increasing the amount of energy used by your body, or by affecting certain parts of the brain. This medication is a combination of phentermine and topiramate. Phentermine is an appetite suppressant and belongs to a class of drugs called sympathomimetic amines. Topiramate is known as an anticonvulsant or antiepileptic drug.

How to Use This Medication

Because of the risk to an unborn baby, only doctors and pharmacies trained in a special distribution program (Qsymia REMS) should prescribe or dispense this medication. Ask your doctor or pharmacist for details.

Read the Medication Guide provided by your pharmacist before you start taking this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with or without food as directed by your doctor, usually once daily in the morning. Taking this medication late in the day may cause trouble sleeping (insomnia). Swallow the capsules whole. Do not crush or chew the capsules. Doing so can release all of the drug at once, increasing the risk of side effects.

The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully.

To prevent kidney stones from forming, drink plenty of liquids while taking this medication unless your doctor instructs you otherwise.

If you suddenly stop using this medication, you may have withdrawal symptoms (such as seizures). To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used this medication for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal.

Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Do not increase your dose, take it more often, or use it for a longer time than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. Take this medication exactly as prescribed to lower the risk of addiction.

Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication.

When this medication is used for several weeks, it may not work as well. Talk with your doctor if this medication stops working well. Your doctor may direct you to stop taking this medication.

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Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

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Information expires December 2022.