Pfizer
the sneaky pharma bastards, trying to get ahead of child heart attacks caused by their poison vax juice, by replacing saline suspension with a dangerous chemical
https://newsrescue.com/pfizer-quietly-adds-heart-attack-drug-to-vax-for-kids/
Tromethamine (Tris) is a blood acid reducer which is used to stabilize people with heart attacks.
Here are known side effects: Respiratory depression, local irritation, tissue inflammation, injection site infection, febrile response, chemical phlebitis, venospasm (vein spasms), hypervolemia, IV thrombosis, extravasation (with possible necrosis and sloughing of tissues), transient decreases in blood glucose concentrations, hypoglycemia, and hepatocellular necrosis with infusion via low-lying umbilical venous catheters