Lilly says that this data was incorrect and taken out of context.

For at least a year, Eli Lilly provided information to doctors about the blood-sugar risks of its drug Zyprexa that did not match data that the company circulated internally when it first reviewed its clinical trial results, according to company documents.

The original results showed that patients on Zyprexa, Lilly’s pill for schizophrenia, were 3.5 times as likely to experience high blood sugar levels as those taking a placebo, according to a February 2000 memo sent to top Lilly scientists. The memo is one of hundreds of internal Lilly documents provided to The New York Times by a lawyer in Alaska who represents mentally ill patients.

But the results that Lilly eventually provided to doctors until at least late 2001 were very different. Those results indicated that patients taking Zyprexa were only slightly more likely to suffer high blood sugar as those taking a placebo, or an inactive pill.

Another Lilly report, from November 1999, shows that Lilly found after examining 70 clinical trials that 16 percent of patients taking Zyprexa for a year gained more than 66 pounds.

The company did not publicly disclose that figure, instead focusing on data from a smaller group of clinical trials that showed about 30 percent of patients gained 22 pounds.

Without a requirement of drug makers to publically disclose all clinical trial results, they are able to cherry pick data that shows their product in a positive light.

Lilly didn’t comment on whether or not it disclosed this original data to the FDA. The FDA has not responded to requests for comments.