Hi, I had the Reclast infusion on February 8th. The infusion was approximately 35 minutes. I drank a lot of water starting a few days ahead and the day of. I felt fine the day of the infusion but the next day, I was feverish with body aches and a headache. I felt off for about 5 days. I would say that I don't have any other side effects currently other than I feel a bit more tired at times that could also be related to the cold/flu that I am getting over. Overall I have continued to be very active and have no lasting effects.