I had a rec class infusion in April and it was given to me over a long period of time an hour instead of a half hour and I took Tylenol before and after and I've had no side effects. I'm very osteoporotic I'm a cancer survivor. I have an esophagectomy I'm pre-diabetic. I have IBS I'm in PT for balance and for bone building. I'm taking tai chi 15 minutes every Sunday for my bones we decided that reclast would be the safest bet for me. I don't have any side effects so far I am very high anxiety. I'm hoping that my bones are building. I just had a very bad cold that lasted about 11 or 12 days. I'm still coughing, but I had a serious bout of reflux and so my pulmonologist said that I could have inflamed airways for up to 10 to 12 weeks if I see any serious side effects like weakness, pain or breathlessness than to retake an x-ray to see if I got aspirational pneumonia from the reflux good luck and make sure you work with that Endocrinologist and any other doctors that can give you input