Keto halted my male pattern baldness. Should I stop my hair loss drug?

I've recently started keto and it halted my male pattern baldness completely. Like I'm not even losing a single hair strand if I pull or when I take a shower and my hair suddenly looks amazing, like the whole hair texture. Tried the usualy high carb diet for a few days and hair loss came back again. So I'm sure it stopped because of keto.

But I'm also taking finasteride since 1.5 year ago and now I'm not sure if the effect is just from keto or keto and finasteride combined. Did anyone else face anything similar? Not sure if I should stop the finasteride or not.

P.S 2: I'm not doing keto for weight loss. My weight is on the lower end of my healthy weight.