What Are The Side Effects Of Oncotrex?

dear doctor, I have been using oncotrex 10 mg once weekly for the past 3 years for RA and recently i am suffering from swelling in my legs and generalised swelling throughout my whole body. Is there any association between oncotrex and this swelling?. I have discontinued oncotrex 2 weeks back because of urinary infection and I got the swelling after that. Kindly clarify my doubt