Claritin for male fertility?

Sia • First date: Oct 29 2011. He asked: July 29 2012. "I Do": June 29 2013. Mommy and Daddy to a son and 2 daughters. Maybe one more??
I'm wondering if anyone has found any research or has any experience with men taking antihistamine to increase sperm quantity and quality. My mom mentioned that my husband should try taking Claritin (or the generic form, Loratadine) since we have been TTC for so long. Any thoughts? Any success stories?