Orthovisc Injection Sodium Hyaluronate 2 mL Prefilled SyringeOrthovisc is a viscoelastic, non inflammatory, and non surgical treatment for knee pain. Orthovisc is injected directly into the knee joint and helps to improve knee function and reduce pain. Orthovisc is made of a natural substance found in healthy joints and helps to lubricate and cushion the knee joint. Orthovisc is a safe and effective treatment for knee pain and has been shown to be more effective than placebo. Orthovisc Osteoarthritis Knee Pain