Thanks for the query to H.C.M. Forum.
Sazo i.e.salazopyrine is a drug of choice in ulcerative colitis
and is an antibiotics .
Razo i.e. rebaprazole is a proton pump
inhibitors and used in hyper acidity .
AZORAN I.E.AZATIOPRIME is immunosuppressants and main side effects are ,
chills,bone marrow depression
characterized by leucopenia ,
So any of above mentioned side effect may be the cause of fever .
Consult your treating doctor and get his opinion.
Good luck. Dr. HET