Do PRP Knee Injections Work Current knee arthritis treatments focus on disease prevention and early treatment including physical therapy, oral medications, and intra articular (into knee joint) TLDR; no. BPC 157 is a peptide that is not approved by the FDA, but it seems like our good friends over at the supplement industry marketing team have gotten their hands on Intra Articular Injection of BPC 157 for Multiple Types of Knee Pain BPC 157: Miracle Healing Peptide or Hidden Danger?