I'm 86 with osteoporosis. Had reactions to Reclast. Just had first injection of Prolia. My hair is falling out. I researched on line and only 1% report hair loss. Now I have tachycardia. I am not taking another injection of Prolia. Seems one of the chemicals in Protia can cause low blood calcium which then causes a high pulse rate. I take Pilates twice a week and eat a plant based whole food diet. I believe keeping a healthy body will help the osteo going forward.