The study was done to test the drug's effectiveness in preventing colorectal cancer which is not the drug's intended primary use.
The group of patients who were taking higher doses of the medication had 2.5 times as many heart attacks. The other group taking a lower dose did not show any increased risk.
Many people who take Celebrex for arthritis pain worry what their risks are. A local rheumatologist says more tests need to be done in order to see what the risks are for arthritis sufferers on the medication.
Pfizer says plans are underway for those clinical trials. They also say they are looking further into both studies and will communicate any new information to physicians and patients around the world.
They are not pulling Celebrex from the market. Pharmacists and doctors say you should talk to your doctor about your own cardiovascular risks.