The amount of medicine that you should take at one time:. A dose is the amount of a drug taken at one time, while dosage refers to how often and how long you'll take the drug for.
In pharmacology and medicine, dosage refers to the prescribed regimen for administering a medication or substance, encompassing the amount, frequency, and duration of use.. A dose is the amount of a substance administered at one time, while dosage refers to the frequency and size of doses over a period.