When I met Mel 17 years ago,(1980) I was shocked to find out he'd been taking Pyribenzamine Spansules 100mg (antihistamine/decongestant) once or twice daily for 20 years. It was changed to chlortrimeton PRN. I've often wondered if it contributed to his parkinson diagnosed in 1986. 1 year ago he took a benadryl cap. and had such a bad day, I was told NEVER to do that again. Mary CG for Mel 75/11