WATERLOO (KWWL)-- Diabetes patients on Avandia will soon notice changes to the drug's labeling.
Bottles are now including safety restrictions ordered by federal health authorities because of the drug's links to heart attack.
The FDA announced the changes in September.
The new U.S. label shows the drug is only intended for patients who cannot control their blood sugar with any of the other diabetes medications on the market.
Avandia was first approved in 1999.
But sales plummeted after a 2007 study linking the drug to heart attacks.