( announcer ) don't take boniva if you problems with your esophagus, low blood calcium, severe kidney disease, or can't sit or stand for at least one hour. follow dosing instructions carefully. stop taking boniva and tell your doctor if you have difficult or painful swallowing, chest pain or severe or continuing heartburn, as these may be signs of serious upper digestive problems. if jaw problems or severe bone, joint, and/or muscle pain develop, tell your doctor. ask your doctor if boniva can help you stop losing and start reversing. and join the myboniva program. to get one month free, plus more tips and recipes, visit boniva.com, or call 1-800-4-boniva.