How long has ivermectin been on the market??
3 days. It is untested. /s
Ivermectin was discovered in 1975 and came into medical use in 1981.[14][15] It is on the World Health Organization’s List of Essential Medicines.[16] Ivermectin is FDA-approved as an antiparasitic agent.[17] In 2018, it was the 420th most commonly prescribed medication in the United States, with more than one hundred thousand prescriptions.[18]
Source: https://en.m.wikipedia.org/wiki/Ivermectin
We sold all of the horses 20 years ago and were using it before that. It’s been around for a while.
The doctor who discovered ivermectin won the Nobel prize for medicine because of his discovery. Billions of doses have been prescribed and it’s available, or used to be, over the counter in India for malaria.