INDIANAPOLIS (AP) — Eli Lilly and Co. unveiled a better-than-expected 2013 earnings forecast Friday, in part because the pharmaceutical company expects growth from several established drugs to help make up for revenue lost to generic competition.

The Indianapolis drug developer saw sales for its all-time best-selling drug, the antipsychotics Zyprexa, crater in 2012 after it lost U.S. patent protection. Lilly will take another hit next December when it loses patent protection for its current top seller, the antidepressant Cymbalta.