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Tag: Nocturnal penile tumescence

Explore our medication guides and pharmacology articles within this category.

Does finasteride affect morning wood? Understanding the side effects

4 min read
While regular morning erections (nocturnal penile tumescence) are often a sign of healthy erectile function, many men report a decrease or loss of them while on finasteride. Clinical data reveals that a small percentage of men taking finasteride for hair loss experience erectile dysfunction, a side effect that can include the loss of spontaneous nighttime and morning erections.