I have suffered from osteoarthritis for years. At first, I took over the counter NSAIDs and Tylenol. My daughter told me about the effects of taking those medications over time so I decided to try alternative supplements. I've been taking Liquid Glucosamine for 3 years now, and rarely ever take pain meds. I've tried many brands, as well as the pill form, and none live up to what my current brand, Synflex Liquid Glucosamine. I've never felt better.