I been taking zyrtec in tha last 2 months since I ran out my benadryl and singular prescriptions. Doc so far away i grab counter stuff till i can get to the doctor.. I to been having funny things going on with rhythm of heart.>LIke a lurching feeling ! Not often.. But like a fluttering slow to fast, then the lurch .. Then it quits? Hard to dechifer all my meds.. I narrowed to nsaid naproxen, advair I started most recent, albuterol I started last year.. The hair loss I started getting faster and faster.. Got me to searching med side affects.. and ran across this site !