The world's most affordable pharmacy is Sun Pharma. If you've ever taken a pain killer, there's a good chance it came from India, the largest producer of generic medicines on the planet. CNNMoney takes you inside the country's biggest drug maker to see how affordable treatments are made.

If you've ever taken a pain killer, there's a good chance it came from India, the largest producer of generic medicines on the planet. CNNMoney takes you inside the country's biggest drug maker to see how affordable treatments are made.
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