Does water reduce finasteride efficacy?

I’m taking 5mg oral fin pills but instead of going through the hassle of splitting them, i drop a crushed up pill in a half liter bottle and drink the bottle over the course of 5 days. My question is; does water react in any way with the fin that would impact its effectiveness? I know it’s supposed to survive stomach acid but then again it’s sitting in water for 5 days.

Any help would be appreciated!!!

Yeah, finasteride won’t instantly break down in water, but what you’re doing isn’t super reliable. You’re probably not getting a consistent 1mg per day, and by the end of 5 days, there could be some loss in potency if the bottle’s not stored right. It’s better than skipping fin altogether, but honestly, splitting the 5mg pill into quarters is more accurate and stable