I have heard of a drug called Paxlovid (released for emergency use under the Trump administration in Decemeber 2021), but I have never tried it, or needed to. I do not know how effective it is, nor it's side effects. It is said:
Paxlovid is the drug that, when taken at the earliest symptoms of COVID-19, can stop the virus from replicating in the body. It is most effective when started within five days of symptom onset.
dhs.wisconsin.gov
Mayo Clinic
I do not know what is in it, but doubt it contains deworm medication or fish tank cleaner, nor does it emit UV light.