The best option for you is to go to the United States Government database on treatments called PUBMED. In the internal search engine type in the problem and the word "treatment".
This will provide you with the latest studies, in an edited form. Not opinions.
"Safe" is a relative terms. Most pharmacological modalities have some sort of adverse effect. It is always risk-ve-benefit.
Osteoporosis may have several etiologies, including a genetic componant.
If you want the full article, you may have to send for it or pay a small fee.