Would be great to have steady state representations in it - e.g. if I take the same drug with a 12 hour half life once a day at the same time, what dose will I balance at systemically after 5 half lives?
I'm hesitant to add more because half-life is so dependent on the ROA (route of administration) and individual characteristics. For example, caffeine's half-life in a baby is multiple days.
Nice graph! Would be good to see dates on the x-axis, and a historical date of ingesting a drug input and then to see now how much is left your body today for example.