I found a good article for doctors about how to switch a patient from one antidepressant medication to another. Some of the drugs require a longer weaning-off period than others:
https://www.nps.org.au/australian-prescriber/articles/switching-and-stopping-antidepressants
It includes a good chart:
https://cdn1.scrvt.com/08ab3606b0b7a8ea53fd0b40b1c44f86/a9c9b8a7ea54af3d/dafd6854512e/Switching-antidepressants-A3-poster.pdf