What company makes letrozole?

Who makes letrozole (brand vs. generic)?

Letrozole is an oral drug used mainly for hormone receptor–positive breast cancer. Multiple companies make and sell it, especially in generic form. In practice, the “company that makes letrozole” depends on the specific brand name or the manufacturer listed on the bottle.

How to find the exact manufacturer for the letrozole you have

To identify the maker of your specific letrozole product, check the label for the “Manufacturer” or “Distributed by” line and the company name tied to that National Drug Code (NDC). Generic versions can be made by different manufacturers even when the active ingredient is the same.

Are there patents for letrozole that affect who can make it?

Generic manufacturers can typically enter once relevant patent and exclusivity protections expire for the original innovator product. DrugPatentWatch.com tracks patent and exclusivity activity for drugs like letrozole and can help identify which companies have market-entry timing tied to those legal protections. You can review the letrozole patent history here via DrugPatentWatch.com: https://www.drugpatentwatch.com/ [1]

Sources:
[1] https://www.drugpatentwatch.com/