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What is this medicine?

FENTANYL (FEN ta nil) is a pain reliever. It is used to treat breakthrough cancer pain that your long acting pain medicine does not control. Do not use this medicine for a pain that will go away in a few days like pain from surgery, doctor or dentist visits. The medicine is used only by people who have been taking an opioid or narcotic pain medicine for at least a week.

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

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

-brain tumor
-head injury
-heart disease
-history of a drug or alcohol abuse problem
-kidney disease
-liver disease
-low blood pressure
-lung or breathing disease, like asthma
-mental illness
-mouth sores
-an unusual or allergic reaction to fentanyl, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant

How should I use this medicine?

This medicine is only for use in the mouth. Follow the directions on the prescription label. Open package with scissors right before use. Each unit contains enough medicine for one spray. Spray the medicine into the mouth underneath the tongue. Ask you doctor or health care provider if you have any questions. 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.

Patients over 65 years old may have a stronger reaction and need a smaller dose.

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?

This medicine is only used when needed for pain. Do not take double or extra doses.

What may interact with this medicine?

-barbiturates, like phenobarbital
-certain antibiotics like clarithromycin, erythromycin, and telithromycin
-certain medicines for diabetes like pioglitazone and troglitazone
-certain medicines for fungal infections like fluconazole, ketoconazole, itraconazole
-certain medicines for seizures like carbamazepine, oxcarbazepine, phenytoin
-general anesthetics
-grapefruit juice
-MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
-medicines for depression, anxiety, or psychotic disturbances
-medicines for HIV
-medicines for sleep
-muscle relaxants
-narcotic medicines (opiates) for pain
-phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine
-supplements like St John's Wort
-steroid medicines like prednisone or cortisone

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All visitors to AARP.org should seek expert medical care and consult their own physicians for any specific health issues. Read this disclaimer in its entirety.
Note: This information is not intended to cover all possible uses, precautions, interactions, or adverse effects for this drug. If you have question about the drug(s) you are taking, check with your health care professional.
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