HIV medication PrEP causing side effects, resulting in lawsuits

Dozens of patients across the country have filed lawsuits over the HIV prevention medication "PrEP."

It's a treatment that can be taken before exposure to HIV, and can reduce the risk of infection by over 90 percent.

But plaintiffs from 12 states say the company that makes prep has known for almost 20 years about its dangerous side effects - like fatal damage to the kidneys and bones.