Is it possible to reduce the effect of hair loss after stopping Finasteride?

In my opinion the simplest way to stop the loss hair loss from stopping finasteride would be to begin dutasteride or topical finasteride. PRP,  and oral or topical Minoxidil may be helpful in slowing down the process, however only the dutasteride works by the same mechanism.PRPHAIRMD.COM 

This is a great question and you may or may not be able to stop it. It just depends on how long you have used thr finasteride and how "dependent" the hairs actually are on this medication.See a specialist to discuss low level laser, minoxidil and PRP. These could help a bit but the most likely scenario is that they won't help to the same degree as finasteride.

Finasteride is probably the best treatment for male pattern hair loss since it deals with the root cause of the problem, as far as we know, which it does be reducing dihydrotestosterone (DHT) levels.If it has been effective then hair loss might occur after stopping it and over time you might lose all the hair you had kep whilst on it.Topical minoxidil is proven to slow hair loss. Low Level Light Therapy, Platelet Rich Plasma injections might also be effective. None of these is likely to be as effective as finasteride.If finasteride is working, you are not having any side effects, and you are wanting to keep your hair, then it is worth staying on it. 

Finasteride  helps to stopping hair loss and thickening of hair . But ıf you stop to use Finasteride  after a long time usage, you may experience a thinning, even loss of hair in 2-3 months because of ending action of active ingredient. Unfortunatelly there is no way to stop hair loss after stopping finasteride  action 

Any benefits you gained from taking finasteride and any hair loss you might have had will all reverse upon stopping the drug and there is nothing that can be done about it