acetaminophen (oral/rectal) Health Article

What happens if I miss a dose?

If you are taking acetaminophen on a regular schedule, take the missed dose as soon as you remember. Wait the prescribed amount of time or as directed in the package labeling before taking another dose. Do not take a double dose.

If you are taking acetaminophen on an as-needed basis, missing a dose is not usually a problem. Take the dose as soon as you remember, and do not take another dose for the amount of time prescribed or as directed in the package labeling.

What happens if I overdose?

Seek emergency medical attention.

Symptoms of an acetaminophen overdose include nausea, vomiting, diarrhea, abdominal pain, sweating, seizures, confusion, and an irregular heartbeat.

What should I avoid while taking acetaminophen?

Avoid alcohol during treatment with acetaminophen. Together, alcohol and acetaminophen can be damaging to the liver.

Be aware of the acetaminophen content of other over-the-counter and prescription products. Care should be taken to avoid taking more than the recommended amount of acetaminophen per dose or per day.

What are the possible side effects of acetaminophen?

If you experience any of the following rare but serious side effects, stop taking acetaminophen and seek emergency medical attention or contact your doctor immediately:

• an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);

• liver damage (yellowing of the skin or eyes, nausea, abdominal pain or discomfort, unusual bleeding or bruising, severe fatigue);

• blood problems (easy or unusual bleeding or bruising).

Other, less serious side effects are not known to occur.

Side effects other than those listed here may occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect acetaminophen?

Be aware of the acetaminophen content of other over-the-counter and prescription products. Care should be taken to avoid taking more than the recommended amount of acetaminophen per dose or per day.

Acetaminophen may cause false urine glucose test results. Talk to your doctor if you have diabetes and you notice changes in your glucose levels while taking acetaminophen.

Other medications may interact with acetaminophen. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including herbal products while taking acetaminophen.

Where can I get more information?

Your pharmacist has additional information about acetaminophen written for health professionals that you may read.

What does my medication look like?

Many formulations of acetaminophen are available alone and in combination products. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.