finasteride works 6 hours. After when its metabolized dht starting slowly rising again. Its better to sleep while finasteride working and wake up while its finished. It might also help people who are overthinking finasteride I was supposed to take it everymorning and sometimes had brain fogs not related by finasteride but lack of sleep and was thinking too much like "uh ? finasteride starting working?" or " uh.. Is finasteride decreasing and supressing dht that instantly and agresively? " Sides will ocurr if your brain is sensitive to everything you feel or hear or see. Sides are 95% caused by your brain lol. Thats why i am telling myself that i dont give a sh*t and i want hair. Jumped from 0.7mg to 1.25mg every day. I hope it will work properly now.