Last month, more than 600 players filed suit against the league saying that the NFL obtained and administered illegal drugs without prescriptions and then failed to warn players about potential side effects.
"It's a very unfortunate situation," Peterson said, via the Associated Press. "Anything I've taken to subside pain I knew what it was, and it was not ever forced on me. The side effects? I don't know if that was ever explained to them back then.
"I hope things work out in their favor. The NFL now and then, maybe this will give us insight into what happened back then. You make your own decisions, but if (repercussions) are not laid out to you ..."
Peterson is coming off of hernia surgery and is two years removed from having surgery to repair the anterior cruciate ligament in his left knee.
"It's humbling to be able to have someone express to you on your rehab how it just inspired them to have a totally different mindset to overcome injury or obstacles in their life," Peterson said. "It makes me feel good from a spiritual context, because life is so much more than football."PHOTOS: 2015 NFL Mock Draft