This video explains the term of therapeutic window as it applies to pharmacology.
You may also find these videos in my PHARMACOLOGY PLAYLIST helpful:
PHARMACOKINETICS - 1. Absorption:
https://youtu.be/tNm1fpb3T7A
PHARMACOKINETICS - 2. Distribution:
https://youtu.be/txCYRry_xrE
PHARMACOKINETICS - 3. Metabolism & 4. Excretion:
https://youtu.be/9vZQ6DfsFSw
Bioavailability of Medications:
https://youtu.be/8flb4ZuiuY8
First-pass Effect:
https://youtu.be/8MU7ih8ps7A
Medication Half-Life:
https://youtu.be/-mgcHpK3G3g
Creatinine Clearance:
https://youtu.be/fAgM-dB3ypU
Therapeutic Window:
https://youtu.be/1AWi-P0AwEM
Peak and Trough:
https://youtu.be/Xl96FdH98yk
Therapeutic Index:
https://youtu.be/e7DYiKSlRXc