milligram; mg
Metric unit of mass equal to one thousandth of a gram; commonly used for medicine doses and small quantities. Often written with numerals, e.g. 5ミリグラム or 5mg.
from French milligramme
This tablet contains 50 milligrams of the active ingredient.
The doctor reduced the dose of the medicine to 10 milligrams.
I consumed 200 milligrams of caffeine in a day.
The doctor prescribed a 5-milligram dose of medicine.