I would perform a fecal on the feces first to determine if it actually had parasites, and then I would choose the proper medication for that specific parasite. Some dewormers only get certain types of parasites, and sometimes a combination of dewormers is needed to fully eradicate everything.
I would start by taking a small amount of fecal material from the snake in question to the vet so they can determine if the snake needs deworming or not. I hope this helps!![]()