I found this sight after searching, because I got tested positive for covid in late august and took plaxovid . I am 73, and have a painful right knee, and I am getting knee replacement late October. Any way , 4 days after taking plaxovid I noticed my knee pain was practically gone . 6 days later I went for 2 mile walk. The next day went a 20 mile ride on my e-bike. Now after 30 days later my pain is back and I can’t wait to my have surgery. There is no doubt something in plaxovid relieved my pain. I couldn’t find any info except for this posting. Everything I searched only said that Covid can make your joint pain worse in the future.