What is tylenol. Tylenol is a pain reliever and a fever reducer medicine that contains an active ingredient called acetaminophen (paracetamol). Tylenol (acetaminophen) is a commonly used medicine to relieve mild or moderate pain, such as muscle aches, arthritis, backaches, menstrual periods, toothaches, colds, sore throats or sprains, reactions. Our Tylenol Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Note: This document contains side effect information about acetaminophen / pamabrom. Some of the dosage forms listed on this page may not apply to the brand name Tylenol Women's Menstrual Relief. You can use acetaminophen to relieve mild or moderate pain. This is usually pain from colds, sore throats, headaches, body or muscle aches, menstrual cramps, arthritis, or toothaches. Meilleure réponse: You would probably get more relief from taking 800mg of ibuprofen (4 advils) without the drowsy side effects of the codeine. Ibuprofen is usually more effective for menstrual cramps than acetominpohen. But don't take the Advil if you have already taken the Tylenol 3. Acetaminophen generally has no side effects when taken as prescribed. When side effects are experienced, the most common are headache, rash, and nausea. When side effects are experienced, the most common are headache, rash, and nausea. Easy-to-read patient leaflet for Tylenol Women’s Menstrual Relief. Includes indications, proper use, special instructions, precautions, and possible side effects. Find patient medical information for Tylenol Extra Strength Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. home / chronic pain health center / chronic pain a-z list / acetaminophen vs ibuprofen side effects article Acetaminophen (Tylenol) vs. Ibuprofen (Advil) for Pain (Differences in Side Effects and Dosage) Acetaminophen vs. ibuprofen for pain quick comparison of differences. Side Effects. See also Warning section. This drug usually has no side effects. If you have any unusual effects, contact your doctor or pharmacist promptly.