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PharmD clinical pharmacy program            Level 3, Semester 2          Biopharmaceutics & Pharmacokinetics (PT608(
























                  Upon   integration ➔
                                                                                                                 [[[[

















                  (Xa)t=0: Mass or amount of absorbable drug at the site of administration at time

                  t=0 (for extravascular administration of a drug, (Xa)t=0 equals FX0)

                  F: Fraction or percentage of the administered dose that is available to reach the

                  general circulation

                  X0: Administered dose of a drug


                  Ka: Absorption rate constant


                  K: Elimination rate constant

                  When written in concentration (Cp) terms➔
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