what can I take to reverse osteoporosis?

I have osteoporosis in my hips, what can I take safely to reverse it or at least keep it from getting any worse.

Along with calcium supplement choosing the right exercises and performing them correctly can help minimize or even reverse the effects of osteoporosis. But before starting any exercise program you should consult your doctor.
Some test may be required such as bone density measurement and fitness assessment.
Starting an exercise program can increase your muscle strength, improve your balance and help you avoid falls and it may keep your bones from getting weaker.