Indocap capsules contain the active ingredient indomethacin, which is a nonsteroidal anti-inflammatory drug used to treat conditions such as arthritis, bursitis, tendonitis, and gout. It works by blocking inflammation-causing substances. Indocap comes in 25mg and 75mg capsules and is prescribed to reduce pain, swelling, stiffness and joint pain associated with these conditions. Common side effects include headache, dizziness and nausea. Indocap should be used with caution during pregnancy, especially in the third trimester, and is contraindicated for people with certain conditions like asthma or heart failure.