I take the veterinarian Ivermectin as it allows you to escape the medical system that tracks you and avoid a PCR swab to get a script- I prefer not to mess with that. It's the same stuff. Ivermectin is one of the safest drugs around.
Online you can get 1% IV Ivermectin that humans can take orally ( It's the exact same medication) I've been taking it without incident. You can take 1.25cc of it prophylactically once every three months ( that's about a third of a teaspoon) or 1.25cc once a day for three days if you feel the start of something coming on or if you are already ill.
Woof- it works great.