I had Reclast infusion Nov 12th, went thru flu like symptoms for 3 days, end of day 3 started with worst bone and joint pain ever. I was ready to go to the ER. Called clinic and was told to take Claritin along with ibuprofen and Tylenol. I took it for a month and started feeling better. So stopped to test if I still needed it. So far I've been good. Just normal arthritis pain I've always had. I told my NP that I won't be taking it again. I have a year, but next time it'll be something different for sure.