I have personally talked with Dr. who wrote this book...and used the protocol he recommends. I have had great success and treated severe knee pain without drugs. I have also used prolotherapy along with the biotape discussed in this book, and avoided knee replacement. I thank Dr. Stoddard every day of my life, and urge anyone with pain to try this. Works for back pain, too. Please do not hesitate to try this...and it is something you can do as needed. I also use knee supports he has intermittently whenever I am hurting. I tell everyone about this!!