Many don’t even pretend to hold promise for curing any illness.
We already do drug tests on people. No matter how many animals are tested someone is always the first human to be tested on.
Animal tests are incredibly unreliable.
The FDA has proved that 92% of all drugs that are tested and shown safe and effective on animals fail on human trials.
Of the small percentage that do work half are relabeled because of side effects not revealed in animal tests.
Testing on an animal shows almost no correlation to the effect on humans.
Penicillin kills guinea pigs but is inactive in rabbits.
Aspirin kills cats and causes birth defects in rats, mice,