What should I watch for?
Tell your doctor or health care professional if your pain does not go away, if it gets worse, or if you have new or a different type of pain. You may develop tolerance to the medicine. Tolerance means that you will need a higher dose of the medicine for pain relief. Tolerance is normal and is expected if you take the medicine for a long time.
Do not suddenly stop taking your medicine because you may develop a severe reaction. Your body becomes used to the medicine. This does NOT mean you are addicted. Addiction is a behavior related to getting and using a drug for a non-medical reason. If you have pain, you have a medical reason to take pain medicine. Your doctor will tell you how much medicine to take. If your doctor wants you to stop the medicine, the dose will be slowly lowered over time to avoid any side effects.
You may get drowsy or dizzy when you first start taking the medicine or change doses. Do not drive, use machinery, or do anything that may be dangerous until you know how the medicine affects you. Stand or sit up slowly.
Do not take other medicines that contain acetaminophen with this medicine. Always read labels carefully. If you have questions, ask your doctor or pharmacist.
If you take too much acetaminophen get medical help right away. Too much acetaminophen can be very dangerous and cause liver damage. Even if you do not have symptoms, it is important to get help right away.
Interactions with Medications
Along 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.
Check with your doctor immediately if any of the following side effects occur:
shortness of breath
Incidence not known
Abdominal or stomach pain
black, tarry stools
blistering, peeling, or loosening of the skin
blood in the urine or stools
change in the frequency of urination or amount of urine
difficulty with breathing
difficulty with swallowing
fast, pounding, or irregular heartbeat or pulse
flushed or dry skin
fruit-like breath odor
joint or muscle pain
loss of appetite
nausea or vomiting
pinpoint red spots on the skin
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
red skin lesions, often with a purple center
red, irritated eyes
shakiness in the legs, arms, hands, or feet
sores, ulcers, or white spots in the mouth or on the lips
swelling of the feet or lower legs
tightness in the chest
trembling or shaking of the hands or feet
unexplained weight loss
unusual bleeding or bruising
unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Confusion as to time, place, or person
difficult or painful urination
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
general feeling of discomfort or illness
holding false beliefs that cannot be changed by fact
irregular, fast or slow, or shallow breathing
loss of appetite
pale or blue lips, fingernails, or skin
sudden decrease in the amount of urine
unpleasant breath odor
unusual excitement, nervousness, or restlessness
vomiting of blood
yellow eyes or skin
Some 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Relaxed and calm
Incidence not known
continuing ringing or buzzing or other unexplained noise in the ears
excess air or gas in the stomach or intestines
false or unusual sense of well-being
pain in the leg
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.