Scientists have to test it on animals first and see if it kills them, if it doesnt kill then they can test it on humans half get sugar tablets some get the drug, they keep a dairy.
What Scientists Have To Do Before They Use A New Medicine That They Have Developed?
Extensive testing, and evaluation
They have to test it
They should test ist on some thing and see if it works and if it doesnt they should improve it by changing it. But they should not test it on animals.
Think of the acids in it