What is the fine-grained topic of the following text: Timolol Maleate is a drug marketed by Sandoz Inc, Akorn, Apotex Inc, Bausch And Lomb, Fdc Ltd, Fougera, Hi Tech Pharma, Pacific Pharma, Wockhardt, Mylan, Quantum Pharmics, Teva, Usl Pharma, Watson Labs, and Yaopharma Co Ltd. and is included in thirty-eight NDAs. Only return the topic.
Timolol Maleate drug marketing