had a little time to dig in the wayback machine & found this:
here’s an excerpt from the Pfizer/Biontech formulation report:
According to FDA documents, each 0.2 milliliter pediatric dose contains 0.02 milligrams tromethamine and 0.13 milligrams of tromethamine hydrochloride.
Tris in vaccines, Talaat said, has “absolutely nothing to do” with Tris being given to people who are having heart attacks. In those situations, she said, individuals might not be getting enough oxygen, leading to acidosis, or an increase of acid, in the blood. That can then be countered with much larger volumes and higher concentrations of Tris than what is present in the vaccine.
The implication from some of the posts that Tris was added to reduce heart attacks in children is groundless. The Pfizer/BioNTech COVID-19 vaccine is not known to increase the risk of a heart attack in any population. Instead, the cardiac concern that has been identified for the two mRNA vaccines is an increased risk of myocarditis, or inflammation of the heart muscle, and pericarditis, or inflammation of the lining surrounding the heart, particularly in young men. But these adverse events are rare, and as a buffer, Tris would not be expected to modify the risk in either direction.
here’s another excerpt from the pfizer piece for information & discussion purposes only:
But social media posts have zeroed in on the formulation change to misleadingly suggest that Tris is dangerous — and simultaneously, that Tris was added to conceal cardiac side effects of the vaccine.
Alex Jones’ Infowars, for example, falsely claims that tromethamine is a “heart attack drug” that was “secretly added” to the pediatric vaccine.
“Is Tris being added to these children’s vials to try to cover up the cardiovascular events that they cause, or at least minimize them?” suggestively asks an article from Natural News, another dubious website that has previously spread COVID-19 misinformation and has repeatedly been banned by Facebook.
Other posts, some subsequently shared on Instagram, make similarly suggestive claims, pointing out the switch to Tris and calling it a “disturbing nugget” “buried” in paperwork submitted to the FDA. They describe Tris as a “blood acid reducer which is used to stabilize people with heart attacks” and list a bunch of scary-sounding side effects, including respiratory depression and IV thrombosis.