fentanyl tablet (cancer pain only) - buccal, Fentora (cont.)
SIDE EFFECTS: Nausea, vomiting, constipation, dry mouth, lightheadedness, dizziness, drowsiness, or headache may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help with selecting a laxative (e.g., stimulant-type with stool softener).Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: slow/shallow breathing, pain/numbness/ulcer/bleeding at the area where you placed the medication (e.g., on your gums or inner cheek), fainting, mental/mood changes (e.g., depression, anxiety, confusion), slow/fast/irregular heartbeat, muscle spasms, weakness, tiredness, tingling of the hands/feet, swelling of the ankles/feet, signs of infection (e.g., fever, persistent sore throat), easy bruising/bleeding, pain/redness/swelling of arms or legs, severe stomach/abdominal pain, change in the amount of urine.Tell your doctor immediately if this rare but very serious side effect occurs: seizures.A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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.
Need help identifying pills and medications?
Back to Medications Index