Sun Pharmaceutical Industries Limited is an Indian multinational pharmaceutical company headquartered in Mumbai, Maharashtra, that manufactures and sells pharmaceutical formulations and active pharmaceutical ingredients (APIs) in more than 100 countries across the globe. It is largest pharma company in India and the fourth largest specialty generic pharmaceutical company in the world, with a total revenue of over US$4.5 billion as of June 2021. The products cater to a vast range of therapeutic segments covering psychiatry, anti-infectives, neurology, cardiology, orthopaedic, diabetology, gastroenterology, ophthalmology, nephrology, urology, dermatology, gynaecology, respiratory, oncology, dental and nutritionals. Its API products include Acamprosate Calcium, Alendronate Sodium, Amifostine trihydrate, Budensonide and Carvedilol.