Drugs A - Z

Phentermine Hydrochloride, Topiramate Oral capsule, extended release

This medicine is only available through certified pharmacies enrolled in a special program

Generic Name: Qsymia

What is this medicine?

Phentermine; topiramate (FEN ter meen; toe PYRE a mate) is a combination of two medicines used with a reduced calorie diet and exercise to help you lose weight.

This medicine is only available through certified pharmacies enrolled in a special program. Your healthcare professional will tell you where you can get your medicine. If you have additional questions, you can visit the manufacture's website at www.QsymiaREMS.com or contact them by phone at 1-888-998-4887.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

-agitation
-diarrhea
-depression or other mental illness
-diabetes
-glaucoma
-heart disease
-high or low blood pressure
-history of anorexia or other eating disorder
-history of substance abuse
-kidney stones or kidney disease
-liver disease
-lung disease like asthma, obstructive pulmonary disease, emphysema
-metabolic acidosis
-on a ketogenic diet
-scheduled for surgery or a procedure
-suicidal thoughts, plans, or attempt; a previous suicide attempt by you or a family member
-taken an MAOI like Carbex, Eldepryl, Marplan, Nardil, or Parnate in last 14 days
-thyroid disease
-an unusual or allergic reaction to phentermine, topiramate, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Do not crush or chew. This medicine is usually taken with or without food once per day in the morning. Avoid taking this medicine in the evening. It may interfere with sleep. Take your doses at regular intervals. Do not take your medicine more often than directed.

A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

Overdosage: If you think you've taken too much of this medicine contact a poison control center or emergency room at once.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following medications:

-MAOIs like Carbex, Eldepryl, Marplan, Nardil, and ParnateThis medicine may also interact with the following medications:

-acetazolamide
-amitriptyline
-antihistamines for allergy, cough and cold
-atropine
-birth control pills
-carbamazepine
-certain medicines for bladder problems like oxybutynin, tolterodine
-certain medicines for depression, anxiety, or psychotic disturbances
-certain medicines for Parkinson's disease like benztropine, trihexyphenidyl
-certain medicines for stomach problems like dicyclomine, hyoscyamine
-certain medicines for travel sickness like scopolamine
-dichlorphenamide
-digoxin
-diltiazem
-diuretics
-hydrochlorothiazide
-ipratropium
-lithium
-medicines for diabetes
-medicines for pain, sleep, or muscle relaxation
-methazolamide
-phenytoin
-pioglitazone
-stimulant medicines for attention disorders, weight loss, or to stay awake
-valproic acid
-zonisamide


Last Updated: July 23, 2012
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