An Ibuprofen 800 milligram pill is a non-steroidal anti-inflammatory medication used to treat pain, according to Drugs.com. The 800 milligram ibuprofen pill is white, capsule-shaped and has the imprint IP 466 on it. This medication can be taken to relieve pain from various causes including arthritis, menstrual cramps, headaches, muscle pain and back pain, according to WebMD.
When ibuprofen is taken on an as needed basis, it's important for the patient to take the medication right when the pain begins for maximum benefit from the medication. It's also necessary to take ibuprofen with a full glass of water and to take the lowest dose possible to prevent the risk of stomach bleeding, as stated by WebMD. Ibuprofen should only be taken every 4 to 6 hours.