Well sort of, and in a rat model anyways. And when given only at a key period of sexual development. And then only when you add estrogen…but still…
jcem.endojournals.org/cgi/reprint/75/2/484.pdf
“The copulatory potential was not affected and all finasteride-treated rats presented male sexual behavior. Despite this, 53% of them showed homosexual behavior when pretreated with estradiol, suggesting an incomplete brain defeminization. These results indicate that 5alpha-R2 acts in brain sexual differentiation of male rats.”
I’m sure this isn’t an issue for any of the heterosexual males here. I’m sure we probably started liking girls long before using it.
Just something to think about…