Does Nizoral Shampoo 2 % (Ketoconazole) cause Erectile Dysfunction if it has been used daily for a long time about 3 - 4 years?

This isn't a typical side effect. If it persists, I recommend following up with your Doctor. There are great non-invasive alternatives like prp/progesterone and/or hair transplantation. See an expert. Best, Dr. Emer

There is no evidence of this phenomenon. About 20 % of men in their 20s, 30 % in their 30s and 50 % in their 50% experience erectile dysfunction. So be sure to review with your physician so a full assessment can be done.