Dosage is the amount of medicine you take and how often you take it. The recommended dosage for your antibiotic might be one pill twice a day for a week, for example.

Prescription medications, as well as drugs like aspirin or cough syrup that you buy over the counter, include the dosage information on the bottle or container. Nutritional supplements, such as vitamin C, also include a dosage or a suggested quantity to take. In medicine, dose is used to mean "amount" and dosage to mean "frequency."

Definitions of dosage
  1. noun
    a measured portion of medicine taken at any one time
    synonyms: dose
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    booster, booster dose, booster shot, recall dose
    an additional dose that makes sure the first dose was effective
    draft, draught
    a dose of liquid medicine
    a dose of a narcotic drug
    lethal dose
    the size dose that will cause death
    lozenge, pill, tab, tablet
    a dose of medicine in the form of a small pellet
    a large pill; used especially in veterinary medicine
    a pill in the form of a small rounded gelatinous container with medicine inside
    pill that is a sugar-coated medicated candy
    sleeping capsule, sleeping draught, sleeping pill, sleeping tablet
    a soporific drug in the form of a pill (or tablet or capsule)
    type of:
    medicament, medication, medicinal drug, medicine
    (medicine) something that treats or prevents or alleviates the symptoms of disease
  2. noun
    the quantity of an active agent (substance or radiation) taken in or absorbed at any one time
    synonyms: dose
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    type of:
    indefinite quantity
    an estimated quantity
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