As Dr. Hyla Cass points out in her excellent book Supplement Your Prescription: What Your Doctor Doesn’t Know about Nutrition, NSAIDs (including older ones such as aspirin, as well as newer ones like Celebrex), which are very widely used for arthritis pain, have the unfortunate side effect of inhibiting the enzymes needed to create cartilage. “Essentially,” she writes, “this means that the drugs used to relieve arthritis-related discomfort accelerate the progression of the disease.” (p. 86)
Indeed, as Dr. Cass goes on to note, there’s a study showing that people taking NSAIDs on a regular basis to relieve knee arthritis pain actually have a greater risk of worsening the disease over time than people who take a dummy pill! Moreover, another study showed that people taking NSAIDs for knee arthritis were at higher risk for developing arthritis in the hip or in the other knee, compared to people who did not take these drugs.
Just another reason to consider use of the supplement glucosamine chondroitin to support joint health. See additional information, including dosage recommendations, at NYBC’s Glucosamine Chondroitin entry.