Healthcare professionals calculate dosage when dispensing medicine and determining treatment plans. This text applies the concept of dosage to communication. We often assume that "more is more" when it comes to communicating, but in all interactions there are ideal and different "quantities" of communication that will get the job done with a better result. Dosage explores this concept of varying doses of communication within the field of health communication, examining one-on-one, doctor-patient interactions and broader, public-health contexts, encouraging aspiring healthcare professionals to consider the best ways to communicate with patients, colleagues, and the public.