Hey and there’s always horse paste (delicious apple flavor, not that I’ve tried it but I have it in the covid prepper bins) if you get Covid before Canada can deliver your prescription. You can also order heartworm meds for big dogs from Canada.
As number one: I would prefer BHT which kills most lipid covered viruses, covid-19 being one of them.
Number two: A combination of QUERCETIN + ZINC + C + D
Amazon sells it.