Will Propecia cause accelerated hair loss if you try it, then stop taking it after a period of time?

Thinking of taking Propecia for Diffuse Pattern Alopecia i.e. I'm thinning at the crown but also at the top area of my head, w/ hair-line & temples still intact, & back&sides still at full thickness. It's my understanding that Fin may cause 'up-regulation' of ones androgen receptors so for example if I responded badly to Fin, then if I were to stop using it; would I experience a faster rate of hair loss than if I'd never taken the drug in the first place?