Taking 1.25 mgs finasteride 3 times a week

Got the 5mg pill of Finastride and am thinking of taking 1.25mg on Monday, Wednesday, and Friday, skipping Saturday and Sunday and restarting the same routine

That is essentially taking 0.54mgs daily. Merck reported that 0.5mgs is 82% as effective as the full 1mg dose, so this plan is a reasonable plan. The benefits are not the blood levels for finasteride but rather the tissue levels which hang around for a few weeks after taking the drug,