As the dose is 2 times a day then the first thing we should do is calculate the number of milligrams per day:
[tex](200) * (2) = 400 mg
[/tex]
Then, we can make the following rule of three:
300 mg --------> 5 ml
400 mg --------> x
From here, we clear the value of x.
We have then:
[tex]x = (400/300) * (5)
x = 6.67 ml[/tex]
Answer:
6.67 ml are needed for one dose
