This doesn't seem very promising to me to any degree.
Potential negative effects of anti-histamines on male reproductive function
Histamine (HA) is a pleiotropic biogenic amine synthesized exclusively by histidine decarboxylase (HDC) in most mammalian tissues. The literature on the role of HA within the male gonad has expanded over the last years, attracting attention to potential unexpected side-effects of anti-histamines...
rep.bioscientifica.com