Does finasteride lose effectiveness over time?

Some people say that finasteride looses effectiveness over time, some say 4 years while other say 10 years or even 15 years, is that the case usually ? Because I’M 24 with a NW2 and if I start finasteride now and have hair transplant and it looses its effectiveness in next 10 years when i’m 34 would that be a problem if the hair loss starts again ? and I’m aware that we have a limited donor hair

Finasteride remains effective over time. What changes is your balding pattern which progresses as you age. Without finasteride, it will progress faster.