My answer to How can one double-check whether the medication a person is prescribed is correct?

Answer by Connie b. Dellobuono:

Ask your mother’s reaction to the medication. What time of the day it is taken and what kind of side effects are observed. The caregiver can start writing down these observations including list of meds, food eaten, elimination/constipation, sleep time, anxiety and other observations. Then present your week of observation to the doctor. And get a second opinion from another doctor.

How can one double-check whether the medication a person is prescribed is correct?