Why?
Is it good or bad?........................
Safe and effective is not a lie.. It is two lies.. The experimental clot shots are neither safe nor effective..
Every incident was a Nuremberg - Hippocratic oath violation..
Two issues: biocompatibility and cytotoxicity.
Other than those, it’s just dandy!
So speaking from around 30+ years in different areas of pharmaceutical/medical device manufacturing:
There must be a full chemical characterization of a cleared product (cleared means it can be sold in a particular market).
Any adulterants must be tested for according to a statistical plan. The manufacturing engineers usually are the ones who come up with a sampling plan.
If chemicals are intentionally introduced without reapplying for regulatory clearance you’re looking at a recall at least and possibly criminal penalties (this gets into law so I will leave this for a lawyer to answer).