Acetaminophen (oral/rectal): How Should I Take Acetaminophen

Content provided by Cerner Multum, Inc.

How should I take acetaminophen?

Take acetaminophen exactly as directed by your doctor or follow the instructions on the package. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each oral dose with a full glass of water.

Acetaminophen can be taken with or without food.

Wash your hands before and after using the rectal suppositories. Run the suppository under cold water or put it in the refrigerator for a few minutes before using it. Remove any wrapping from the suppository and moisten the suppository with cold water. Squat, stand, or lie down with one leg straight and the other bent, in a comfortable position that allows access to the rectal area. Use your finger, or the applicator if one is provided, to deposit the suppository as far as it will comfortably go into the rectum. Insert the narrow end first. Close your legs and lie still for a few minutes. If the applicator will be reused, take it apart and wash it with warm water and mild soap, then dry it completely. Avoid having a bowel movement for at least 1 hour after inserting the suppository.

To ensure that you get a correct dose, measure the liquid forms of acetaminophen with a special dose-measuring spoon or cup, not with a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one. Shake the liquid well before measuring.

Never take more acetaminophen than is directed. The maximum amounts for adults are 1 gram (1000 mg) per dose and 4 grams (4000 mg) per day. Taking more acetaminophen could be damaging to the liver. If you drink more than three alcoholic beverages per day, talk to your doctor before taking acetaminophen.

Use acetaminophen for up to 3 days for fever or up to 10 days for pain (or up to 5 days to treat a child's pain). If the symptoms do not improve, or if they get worse, stop using acetaminophen and see a doctor.

If you are treating a child, read the package carefully and use a pediatric form of the medication if possible. Talk to a doctor first if the child is younger than 2 years of age.

Store acetaminophen at room temperature away from heat, moisture, and the reach of children. The rectal suppositories can be stored at room temperature or in the refrigerator.

Last updated:	June 20, 2005