Teva Pharmaceuticals (NYSE:TEVA) is the world's largest manufacturer of generic drugs. The company pays a solid dividend and has been a strong performer over the past decade thanks to growing demand for low-cost medicine.

Despite that demand growth, however, the company faces a big risk to its revenue given the recent patent expiration on one of its best-selling specialty medicines. As a result, dividend investors are right to wonder whether a potential sales slide threatens Teva's dividend payout.

In the following slideshow, you'll learn more about Teva's patent risk, risk to its profitability, and how Teva compares to big drug makers like Merck and Pfizer when it comes to its dividend payout.