FENTANYL-TRANSDERMAL (cont.)
SIDE EFFECTS: This medication may cause constipation, lightheadedness, dizziness, drowsiness, stomach upset, nausea or flushing the first few days as your body adjusts to the medication. If these symptoms persist or become bothersome, inform your doctor. Notify your doctor if you develop: irregular or slow heartbeat, anxiety, tremors, seizures. If the area around the patch becomes red, itchy or irritated, try a new site. If the irritation continues or becomes worse, contact your doctor. When stopping this medication you may experience nausea, vomiting, diarrhea, anxiety, or shivering. If these symptoms persist or worsen, contact you doctor. In the unlikely event you have an allergic reaction to this drug, seek immediate medical attention. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS: Before using this medication, tell your doctor your medical history especially of: heart or lung disease, asthma, difficulty urinating, enlarged prostate, high blood pressure, low thyroid function, any drug allergies. Use caution when engaging in activities requiring alertness such as driving or using machinery. Limit alcohol consumption because it may add to the dizziness/drowsiness effects of this drug. Do not allow any heat source to warm the patch as it may cause the drug to be released too quickly. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug. This drug should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Fentanyl passes into breast milk and may have undesirable effects on a nursing infant. Therefore, do not breast-feed without first consulting your doctor.
DRUG INTERACTIONS: Tell your doctor of any over-the-counter or prescription medication you may take including: sleeping pills, sedatives, tranquilizers, muscle relaxants, medication for depression or seizures, narcotic pain medication, cimetidine, macrolides (e.g., erythromycin), azole antifungals (e.g., ketoconazole), protease inhibitors (e.g., ritonavir), rifampin, medications for colds/allergies or hay fever. Tell your doctor you are taking this medication before undergoing any procedure requiring anesthesia. Do not start or stop any medicine without doctor or pharmacist approval.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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