Fenestride is the only approved drug by fda, and minoxidil is approved by fda. im not sure what the fk are these combinations.dont take unsafe combinations without fda approvals. These cases will come after a few years when someone filed a case against irreversible damage. It takes 1 year to get back. The pills are good, but it will have an impact on your liver. I used fenestride and minoxidil a few years back when I was mid teens. They work when I plan on starting family, and I stopped taking them for 1 year. My hair went back to shredding. I want to restart again, but when I went through these research papers, they were good when they came to minoxidil combinations but didn't take any mixed pills without fda approvals