Takeda Pharmaceutical Co. owes $6.5 million in damages to a California man who said Asia's largest drugmaker failed to warn consumers its Actos diabetes drug could cause cancer, a jury said in the first of more than 3,000 lawsuits over the medication to go to trial.

Jurors in state court in Los Angeles deliberated for more than five days before finding Osaka-based Takeda didn't provide adequate bladder-cancer warnings to Jack Cooper and his doctors about Actos.

Cooper, 79, took the drug for more than four years before being diagnosed with the disease in 2011.