Eli Lilly hopes to launch as many as 5 new treatments next year

The higher spending led Lilly to forecast 2023 profit below analysts' estimates and its shares fell about 1% to $363.59. The company's shares have been up about 31% this year.

Tirzepatide received the U.S. health regulator's approval for type 2 diabetes this year and is sold under the brand name Mounjaro.

Lilly expects its marketing and related expenses to be between $6.9 billion and $7.1 billion in 2023, $500 million higher than this year.

"I think we see two of them as kind of generational opportunities, tirzepatide for obesity and donanemab, and the other three as being great opportunities in very competitive spaces," Lilly Chief Executive David Ricks said.

The other three treatments are mirikizumab for a type of inflammatory bowel disease, lebrikizumab for atopic dermatitis, and cancer drug pirtobrutinib.

The company also plans to spend between $8.2 billion and $8.4 billion for research and development next year.

Lilly expects revenue between $30.3 billion and $30.8 billion for 2023, higher than Wall Street estimates of $30.12 billion, according to Refinitiv IBES data.

The company forecast 2023 adjusted profit per share of $8.10 to $8.30, lower than analysts' estimates of $9.15.

Lilly expects no sales from its COVID-19 antibody drugs after the U.S. Food and Drug Administration pulled authorization for its therapy bebtelovimab last month.