; =============================================
DESCRIPTION: Two cpt linear model
  Linear 2 compartmental distribution model with IV administration and absorption
  Dose: mg
  Concentrations: ug/mL
  Time: hours
; =============================================

  [LONGITUDINAL]

  input = {Fabs1,ka,CL,Vc,Q,Vp}
; =============================================
PK:
; =============================================

  ; Model parameters
  ; ----------------
  Tlag1 = 0
  Tlag2 = 0

  ; Model compartments
  ; ------------------
  compartment(cmt=1, amount=Ac)
  compartment(cmt=2, amount=Ap)

  ; Model dosing
  ; ------------
  absorption(cmt=1, type=1, ka=ka, p=+Fabs1, Tlag=Tlag1)
  iv(cmt=1, type=2, p=1, Tlag=Tlag2)

  ; Transfer and elimination definitions
  ; ------------------------------------
  elimination(cmt=1, k=-(-(Q/Vc + CL/Vc))-(Q/Vc))
  transfer(from=2, to=1, kt=Q/Vp)
  transfer(from=1, to=2, kt=Q/Vc)

  ; Output variables
  ; ----------------
  Cc = Ac/Vc

; =============================================
OUTPUT:
; =============================================

  output = {Cc}