1. Which of the two medications have proven to have less side effects?
2. What are the side effects of both drugs?
Hi Nancy: Both of these medications have similar side effects. Since we all react differently with medications it's impossible to know what, if any, side effects we'll experience. Here's a link to both of the drugs side effects and you can read what it says. They both say common side effects are: stomache ache, pain in back/joint, and flu-like symptoms. Boniva mentions diarrhea also. If you should develop trouble swallowing with either drug discontinue and contact your Dr. There is a listing of less common side effects on both of these medications that you can read at the links below.
Actonel and Boniva