&gt; 2000mg&#x2F;kg = 2, right?<p>No, 2000mg&#x2F;kg = 0.002<p>&gt; Like 2kg of medicine for every one kg of body mass?<p>No, 2g for every kg of body. And that&#x27;s some safe limit, not therapeutic dose.<p>&gt; Or is mg here used for micrograms rather than milligrams?<p>No, it&#x27;s milligrams.