or cannot sit or stand for 30 minutes. follow all dosing instructions. stop taking actonel and tell your doctor if you experience difficult or painful swallowing, chest pain or severe or continuing heartburn. these may be signs of serious upper digestive problems. promptly tell your doctor if you develop severe bone, joint or muscle pain, or if you develop dental problems, as serious jawbone problems have been reported rarely. to get a free trial offer of once-a-month actonel visit actonel.com. and ask your doctor how once-a-month-actonel can help you reverse bone loss.