Hello, My Dad has been given Neurobion Forete Injections to help with back pain and also to help with mobility. However for the past few days he no longer can stand on his 2 feet without falling down. He complains that his knees are shaking and he no longer has the strenght to stand without help. Today he could not even stand with help. He has been complaning a lot about pain. A bit of histroy about my Dad. He is Overwieght and had pain in his back fo couple of years and started taking these injections for the past year. He did get well for couple of months. He overall health is good except for some issues on his spine.