AQR Section 22 Exercise 44

Dr. Phibes prescribes Comodin (a fictitious blood drug) to be taken every 4 hr. Suppose the body eliminates 30% of this drug every 4 hr. What dosage should Dr. Phibes prescribe if he wants the target goal (equilibrium value) of the drug in the bloodstream to be 120 ml? Explore different amounts below, and then justify your final answer.