15 Best Selling Most Profitable Drugs of All Time

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13. Lantus

Lantus is a long-acting basal insulin. It is used to treat type 1 and type 2 diabetes. Lantus is sold by France-based pharmaceutical giant Sanofi. The drug was approved for sale in 2001 and as of the end of 2016, had generated total revenue of $58.34 billion.

 Iakov Filimonov/Shutterstock.com

Iakov Filimonov/Shutterstock.com

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