Did you know that the regular use of common pain killers like ibuprofen or aspirin-based drugs can damage the stomach lining and even cause bleeding in the stomach? Still, the non-steroidal anti-inflammatory drugs(NSAIDs), as the above are known, are being used by the public in an indiscriminate manner without having the potential risk evaluated.Researchers at the Standford University in California (USA) have now developed a formula called gastrointestinal score (GI Score) to predict the risk of stomach damage in people who are chronic users of NSAIDs and are preparing to use them for their chronic health problems.