my mother is 83 yo, taking Zantac, prilosec,40 mg,lipitor 40 mg, celexa 20 mg, aricept 15 mg, atenolol 25 mg, just added amoxicillin 250 mg tid x 10 days for sinus infection, she is c/o dizziness and is sleeping longer periods during the day, she has dementia and is becoming more difficult to manage.