Actron is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Actron works by reducing hormones that cause inflammation and pain in the body.
Actron is used to treat pain or inflammation caused by arthritis. It is also used to treat menstrual pain.
Actron may also be used for other purposes not listed in this medication guide.
Most important: This medicine can increase your risk of life-threatening heart or circulation problems, including heart attack or stroke. Do not use this medicine just before or after having heart bypass surgery (also called coronary artery bypass graft, or CABG).
Seek emergency medical help if you have symptoms of heart or circulation problems, such as chest pain, weakness, shortness of breath, slurred speech, or problems with vision or balance.
This medicine can also increase your risk of serious effects on the stomach or intestines, including bleeding or perforation (forming of a hole). These conditions can be fatal and gastrointestinal effects can occur without warning at any time while you are taking ketoprofen. Older adults may have an even greater risk of these serious gastrointestinal side effects.
Call your doctor at once if you have symptoms of bleeding in your stomach or intestines. This includes black, bloody, or tarry stools, or coughing up blood or vomit that looks like coffee grounds.