Yup, you'll take four of them! Take them at the same time as meto/ondanestron. I got ondanestron really easily when I went to the emergency room for food poisoning so if you go for vomiting/nausea, they'll most likely prescribe it to you. Meto/ondanestron is the hardest part to obtain since it's not OTC, you need a prescription. You can always ask your doctor for it and lie saying you've taken it before for nausea/vomiting and it worked for you. If that's not possible, I know a website that ships it without prescription, just ask me to PM me if you'd like. Also it's totally okay!! The medication part is confusing so I get what you mean!
The antidote to SN is methylene blue so you can't turn into a veggie for it, so thank goodness for that!