The Indian pharmaceutical industry is the third largest by volume and thirteenth largest by value globally. It supplies over 50% of global vaccines and 25% of medicines in the UK. The market is expected to grow to $100 billion by 2025. India exports $20.7 billion in pharmaceuticals annually, making it the largest provider of generic drugs worldwide and a major supplier to the US and UK markets. However, the industry also faces threats such as drug expiration, returns and recalls, as well as challenges in demand forecasting and meeting unexpected increases in demand during epidemics.