Many people here have used Tymlos. Most people have little or no side effects. Some people, a minority, don't tolerate it well. There's no way to know until you try. It's a daily injection, so it doesn't stay in your system very long. If you had a bad reaction, then you stop using it. "Bad" does not mean you end up in the emergency room, by the way. I guess I'm saying, don't be afraid to try it.