If you are unfortunate enough to be epileptic, make sure your doctor does regular blood tests to check for calcium loss. All epileptic drugs have a tendency to cause osteoporosis if regular blood tests aren't done to check there is sufficient calcium in the blood. Doctors do know this, and know the importance of regular blood testing, but they are remiss at carrying these tests out, so it is up to you to make sure you get them before you end up with a fracture and they tell you that you have osteoporosis and start you on yet more medicines with ghastly side effects you can well do without.
Prevention is always better than cure, even if it means being a pest because you insist on regular blood tests. If I had known all this before I fractured my hip and femur, within 18 months of each other, and before I was 50, I would have done something about it. Now I live in constant pain, restricted mobility, and my life will never be the same. Thank you, N.H.S.