I had my Reclast infusion 3 weeks ago and I'm still feeling the pain of side effects. I'm still on Claritin and taking ibuprofen and Tylenol arthritis. If I don't I ache so bad. Saw my NP yesterday and they felt so bad that no one told me about the Claritin. I informed them I will not be doing another Reclast infusion. So when my year comes due I'll be on fosamax. It to has side effects but sounds like they only last till your body adjusts to the meds. I will be on Claritin for another month. I hope that does the trick. Living in joint pain is the worst.