Finasteride and Ephedrine Interaction?

I’ve recently been having a good deal of success with taking moderate amounts of ephedrine (in combination with caffeine) to improve weight loss and muscle growth. Although I’m not intending to keep taking ephedrine for more than a month or so, I wanted to know if there was any known interaction between it and finasteride, because the last thing I want to do is reduce the finasteride’s effectiveness.

According to MDAdvice.com there is an interaction between Finasteride, where ephedrine may reduce the effectiveness of finasteride.