[dbarlett]

Or temporarily from medication, particularly those used to treat erectile dysfunction and benign prostatic hyperplasia [1][2].

[1] https://www.faa.gov/about/office_org/headquarters_offices/av...

[2] https://www.leftseat.com/viagra.htm

[URSpider94]

... and as a professional pilot, you'd probably have to consult a flight physician if you were taking meds like these.