Hi ,I had my Vitamin D levels checked by Quest Lab in november 2008, my level came up 4 and ,my dr prescribed 50,000 mg vit d once a week for 12 weeks ...on the bottle it says vit d 1.25 gelcaps on side effect paper it says dristol D3 maximum i'm confused called cvs pharmacy but always busy i read side effects can get fast pounding heart'i get palpitations and am scared take it yet...i wanted to try over counter lower dose to get used to D since i never took a vitamin i'm vegetarian so i read tablets aren't as good as capsules D3 ,i think a better understanding all this may help my fears ,i just can't seem get that ....can you pleas help ,my dr said i can try lower dose but not sure which best i'd like buy one at local drugstore not online thank you ...mady