Fentanyl (Transdermal-Systemic)
Brand Names : Duragesic
Side Effects of This MedicineAlong with its needed effects, a medicine may cause some unwanted effects.
Although not all of these side effects may occur, if they do occur they may
need medical attention.
Get emergency help immediately
if the following signs of overdose occur
:
Cold, clammy skin; convulsions (seizures); drowsiness that is so severe that you are not able
to answer when spoken to or, if asleep, cannot be awakened; low blood pressure; pinpoint pupils of eyes; slow heartbeat; very slow (fewer than
8 breaths a minute) or troubled breathing
Also, check with your doctor as soon as possible
if any of the following side effects occur:
Less common
Chest pain; difficulty in speaking; fainting; irregular heartbeat; mood or mental changes; problems with
walking; redness, swelling, itching, or bumps on
the skin at place of application; spitting blood
Rare
Any change in vision; bladder pain; difficulty in speaking; fever with or
without chills; fluid-filled blisters on skin; frequent urge to urinate; noisy breathing,
shortness of breath, tightness in chest, or wheezing; red, thickened, or scaly skin; swelling of abdomen
or stomach area; swollen and/or painful glands; unusual bruising
Incidence not known
Bloating or swelling of face, hands, lower legs and/or feet; rapid weight gain; fast or pounding
heartbeat or pulse Other side effects may occur that usually do not need medical attention.
These side effects may go away during treatment as your body adjusts to the
medicine. However, check with your doctor if any of the following side effects
continue or are bothersome:
More common
Abdominal or stomach pain that was not present before treatment; confusion; constipation; diarrhea; dizziness, drowsiness,
or lightheadedness; false sense of well-being; feeling anxious; headache; indigestion; loss of appetite; nausea or vomiting; nervousness; sweating; weakness
Incidence not known
Weight lossAfter you stop using this medicine, your body may need time to adjust.
The length of time this takes depends on the amount of medicine you were using
and how long you used it. During this period of time check with your doctor
if you notice any of the following side effects:
Anxiety; body aches; diarrhea; fast heartbeat; fever, runny nose, or sneezing; gooseflesh; increased sweating; increased yawning; loss of appetite; nausea
or vomiting; nervousness, restlessness, or irritability; shivering or trembling; stomach cramps; trouble in sleeping; unusually large pupils of eyes; weakness Other side effects not listed above may
also occur in some patients. If you notice any other effects, check with your
doctor.
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