資料來源 : Webster's Revised Unabridged Dictionary (1913)

Posology \Po*sol"o*gy\, n. [Gr. ? how much + -logy: cf. F.
   posologie.] (Med.)
   The science or doctrine of doses; dosology.

資料來源 : WordNet®

posology
     n : the pharmacological determination of appropriate doses of
         drugs and medicines