Sulfasalazine loved me for a while and worked for a while too. It gave me little or no side effects. But I’ve a horror of vomiting so I asked for an anti-emetic to take when I started it. I took that for about two weeks or so and I never vomited. Never got the runs either. All that happened with me was I got overly noise sensitive and irritable initially.
Build up slowly. One tablet a day for a week, then two for another week and three for the next. Don’t be worried about dropping a tablet down for a week and then trying again to up the dose. Take your time.
What end dose are they wanting you to be on? 2000mg or 3000mg? As in 4 tablets a day or 6 tablets a day? It didn’t work for me until I went up 6 tablets a day. And then like magic it really did work well for a while.
I couldn’t function with mxt side effects, so I was so glad this did something so positive.
Best of luck.