The common misconception about Finasteride is the belief that one must have very low DHT to get PFS. There were men who regularly tested DHT throughout the course of treatment, always maintaining DHT in the mid normal ranges.
Not only do these PFS suffers have healthy DHT also once off the medicine, they also have PFS continuing symptoms for decades.
It’s the interruption, altering of the hormone pathway (5 alpha reductase) that has downstream effects, because the medicines is stopped and the DHT levels are high but the effects of the hormone is lost.
Finasteride can cause adverse DNA changes and can damage DNA.
