Ran out of Dutasteride for 5 days. What Is My Risk For Not Taking It?

Dutasteride has a long tissue fixation period lasting a good month, so missing a dose for 5 days is not an issue. Also note that the blood half life for dutasteride is 6 days, which means that half of it was in your blood when you stopped taking it.  For the few men when I prescribed dutasteride, I advise taking it just twice a week because the half life is so long.