I have been put on Bactrim (sulfamemethoxazole and trimethoprim) anti bacterial pills after ASCT. I am taking this drug three times a week, on Mondays, Wednesdays and Fridays. I am supposed to be on it for at least two months but I think I am getting weird side effects from it. I’ve been on it for a month now, and I have noticed that by Friday there’s tingling in my hands and feet, and I think I am getting some muscle weakness and slight dizziness as well. After being off it for Saturday and Sunday, some of the side effects are lessened, but then get worse by Friday. Has anyone experienced this with this drug?