The Complete Peptide Guide: Reconstitution, Injection & Storage Extension Health Relieving Neck and Shoulder Pain: Injection Techniques Peptide BPC 157 Intra V How to relieve shoulder pain? Steroid injections are often used to treat shoulder pain caused by inflammation like bursitis, tendonitis, or rotator cuff irritation. The medication is injected Stable Gastric Pentadecapeptide BPC 157 and Striated, Smooth, and Heart Muscle Ask the Doctor: BPC 157 to heal a rotator cuff tear