How do I take finasteride? Sophie April 23, 2019 20:52 Updated Follow We’ve put together a short article and an instructional video to make taking finasteride as easy as possible. You can see the video below and find the article here. Related articles How long does it take for Keeps hair loss treatments to start working? How do I use minoxidil? What is finasteride? What about side effects? Are there other treatments that work for hair loss? Comments 0 comments Article is closed for comments.