i am loosing a lot of hair every day, yesterday i wash my hair and i count all my hair , and they amount of 500 hundred hair loss,i think it to much hair loss, this can be the pill of toprol xl 50mg, orthis pill nifedical xl 30, orhydrochlorothiazide 25 mg,or vytorin 10/40 ,or potassium cl 20 meq.wich one is the pill let me loss all that hair ,please answer me back as soon is possible, thank you mrs. ricci my age 58 .