Finasteride and minoxidil typically take 3 to 4 months of daily use to start seeing visible changes. It can take up to a year to see the maximum results. As long as you don’t experience side effects, it’s best to continue the medication for one full year before deciding on whether the medication is doing all it can for you. Like all medications, finasteride and minoxidil will work differently for different people. View the important safety information.