Warfarin as a rat poison comes to mind. Gonna need multiple doses of that new vaccine ya know.
I was put on warfarin while in the Hospital for A-Fib. Then came all the testing to get the dosage right, I looked it up and found out about it being RAT POISON!!!
I asked/told My Primary Doc to get Me on something else. I was switched to Xarelto. I got the new Rx and the Copay was $8.50 IIRC and retail price was something like $1200.00’!!!