Rituximab
"Had 1st infusion of rituximab & experienced tingling in & around mouth, white of eyes turned blood red. Later that day I had palpitations & shortness of breath. The next morning I had nausea & severe headaches. By lunchtime I was so cold I was shivering, despite hot water bottles and going to bed did not get warm until the early hours of the next day, then I started with a temperature.  Have rheumatoid arthritis affecting most joints, the joint pain increased further. Its been 3 weeks since my 1st infusion, my gut instinct is not to have the 2nd, I'm still enduring the side effects daily however not as severe as at 1st."