This study might not be the final word, but as someone who has taken quite a few antihistamine pills over the years, I was certainly a little concerned upon seeing hay-fever mentioned. I'm glad to see that the medication I took is a little different from the ones in the study. From the article: > A study has linked commonly used medicines, including over-the-counter treatments for conditions such as insomnia and hay-…
Fexofenadine (Allegra, Telfast..):
"Unlike older antihistamines, fexofenadine does not have anticholinergic activity." http://www.medscape.com/viewarticle/406437_3
Bilastine (Bilaxten):
"No anticholinergic adverse events were observed in the clinical trials.." http://en.wikipedia.org/wiki/Bilastine
"bilastine's safety profile is satisfactory, since it lacks anticholinergic effects" http://www.ncbi.nlm.nih.gov/pubmed/22149338