Why self medication is harmful: factors need to be considered for dose calculation

This video provides the information about the various factors, which need to be considered for dose calculation such as

1. Age
2. Sex
3. Body size
4. Body surface area
5. Route of administration
6. Time of administration
The conclusion of the video is that, the dose of the drug, used for the treatment of a patient, is calculated by the doctor on the basis of various factors, which directly or indirectly influence the treatment. So we have to avoid the self-medication.

calculation