From what I can see, Vyepti looks like a migraine treatment. Some people experience migraines with COVID-19 but I don't think that it will do anything for the COVID itself. That would require antivirals. It might be worth asking for an antiviral to be added to it before you go, but that might be too late now judging by what you say.
Some antivirals can help prevent the SARS-CoV-2 virus from replicating.