To Minoxidil or NOT to Minoxidil after FUE. If I use it for only 6 months will if effect the non-transplanted hair?

I'm post FUE surgery - had minor work done in the hair line aprox 1500 grafts - my hair loss was stable, I didn't seem to lose much hair in last 5 years. After surgery my doctor recommended to use Minoxidil 5% for at least 6 months. If I start using Minox for 6 months and then stop will it affect my non-transplanted hair? I mean, will my "natural" hair fall as a side-effect of using Minoxidil after the 6 months? If "YES" - is it better to avoid the Minoxidil and not use it at all?