Hello I am 25 years old and I am female. I want to ask something. I have an ilness since I was a child and it is called peripheric spondyloarthropathy and I use some drugs everyday for this ilness. Salazopyrn(Sulfasalazin x4) and Etol Sr 600( x1). my question is about effects of these drugs on birth control pills. I've been using a birth control pill which is called Yaz 24+4 for 6 months but on prospectus it says some drugs for rheumatismal ilnesses may reduce effectiveness of this birth control pills. I searched about it and I found some information but all of them says these drugs may reduce effectiviness of birth control pills so before using ask your doctor. So I just wanted to ask this to a doctor. Can I use my birth control pills safeley or the drugs will reduce it's safety ? I would be really glad if you answer my question because I am not native speaker so I can't search better on medical articles or if anyone else help me with some links and information I would be really glad.