<MODEL>
[LONGITUDINAL]
input = {V1, V2, k}

PK: 
compartment(cmt=1, amount=Ac, concentration=Cc1, volume=V1)
compartment(cmt=2, amount=Ad, concentration=Cc2, volume=V2)

EQUATION:
ddt_Ac = -Ac
ddt_Ad = Ac-k*Ad

<DESIGN>
[ADMINISTRATION]
admin = {time=5, amount=1, target=Ac, rate=.5}

<PARAMETER>
V1 = 10
V2 = 5
k  = .3

<OUTPUT>
grid = 0:.05:20
list = {Cc1,Cc2}

<RESULTS>
[GRAPHICS]
p = {y={Cc1, Cc2}, ylabel='Concentrations', xlabel='Time'}