just read the article which suggests that the responsible (and effective) approach to deworming these days is to start with a fecal test and then worm accordingly.
i know this has been discussed on the board in the past. i intend to talk to my vet about it but i'm curious how this works in practice. you get the fecal done, then based on results select a wormer to best address the current parasite levels? what if the fecal results show high levels of parasites that are normally treated with two different wormers? do you administer them separately some time apart and then retest? do you administer one, retest. then administer the other and retest again?