@sue225 I have been on 12.5 mg of Toprol for over 13 years. I have lost so much hair. My doctor says she doesn't believe such a low dosage is the culprit. I don't know. In any event, I am coming off of it. I have reduced to 6.25 mg for 12 days now. My anxiety is out the roof. My dermatologist, on the other hand, says my hair loss could be the Toprol. I'm afraid at this point, after so many years, I won't have any new growth. I'll just be happy if the shedding stops.