Loratadine
"I was diagnosed with allergy induced sinus infection.  I also had really itchy ears and skin patches.  The loratadine helped these problems but cause really serious CNS side effects.  My PB was elevated by 30 points (154/93) with heart rate at 68.  I was in a full body shake early in the morning of the 4 day of treatment.  I also experienced serious anxiety and depression problems.  I stopped taking the meds and the symptoms gradually subsided through the day.  Not a good choice for me."