The answer depends on the units for 0.003
The answer for 0.003 kilograms will be very different from the answer for 0.003 nanograms!
They both equal the same as long as there are no numbers before the zeroes.
1 mg is equal to 1000 mcg
0003 or three. If you want, you can say 'zero zero zero three'.
15000 mg
9000 mg
65,000 mg
Yes
Gr.ss= mg
Accordingly, 1 ml = 1/7.5 mg = 0.133 mg
600mg is equal to 600000mcg (1000mcg per mg).
300 mcg is equal to 0.3 mg
A single dose of cefixime 400 mg is not equal to 200 mg twice a day.