It depends if you mean gram or grain.
1 grain = 64.79891 milligrams
1 gram = 1000 milligrams
One pound is 453,590 mg
Two 200 mg caps equal .4g.
170 mg is 0.00599657 ounces.
40000
From here, it looks like those two doses are different by 2.4 mg. The prescription isn't met.
65 mg
1 gr(grain) is equal to about 1/64th of a mg so 1 mg(milligram) is equal to 0.0154323584 gr(grains)
.25 gr = .25 x 1000 = 250 mg
1500 mg
60 mg is 0.925942 gr(grain), or 0.06 g(grams).
15 gr = 971.985 mg15 gr = 971.985 mg15 gr = 971.985 mg15 gr = 971.985 mg15 gr = 971.985 mg15 gr = 971.985 mg
10 gr = 647.99 mg10 gr = 647.99 mg10 gr = 647.99 mg10 gr = 647.99 mg10 gr = 647.99 mg10 gr = 647.99 mg
1 gr = 1,000 mg 2 gr = 2,000 mg . . 5 gr = 5,000 mg
1000
60 mg -------- gr i 45 mg 15 mg -------- -------- gr 3/4 gr 1/4 30 mg -------- gr 1/2
0.03g
The normal symbol for gram is g, rather than gr. 1 g = 1000 mg so 15g = 15,000 mg. Simple!