As someone who works in the pharma industry, I can tell you that much of the API (active pharmaceutical ingredient) that goes into medicines is produced overseas. For whatever reason, API is becoming harder to find, and consequently, drug shortages.
I hate to think this, but maybe the administration is setting the stage to nationalize drug companies. That would be a total failure, and I would imagine that any new, innovative drug research would be halted.
Ivermectin is available in a paste form in equestrian shops. I’m no vet but I know many people who use this monthly and haven’t had heartworm problems in their pets. We use it and our pets are fine.
This is semi-off topic since I’m speaking of people drugs, not doggie drugs but I’ve been a nurse for 14 years & a nurse anesthetist for 6. I have never had to substitute, go without, or alter my care of patients due to drug shortages like I have the last 2 years. Something very strange is happening.