4 dermatologist and 1 urologist. All of them said the same thing; It is safe. They said that side effect risks are very low and most of the people who get sides are in nocebo group. Because of that, my urologist recommended me to stop reading about finasteride in web and forget about side effects before I start the medication. They are not believing in post finasteride syndrom they said it’s a coinsidence and different body, hormon issues lying behind it. So in their opinion if you get sides and quit the drug, everything should be back to normal after 30-90 days. Also they suggest three times a week 0.5mg to me (20 years old, diffuse thinning on top).
I agree with their opinions; however, I would start at half the dose of 0.5mg/day or 1mg every other day (which is 80% as effective as the full dose) The dose that they recommended may at bit too low to get the impact you need.