No no guys it's 100% safe, that's why big pharma needs total immunity from any consequences. 100% safe though. Oh those people complaining that it fucked them up? *Banhammer flails around* What people? Oh I know, you're a conspiracy theorist. We'd better silence you for the sake of big pharm- the public for the sake of the public.

IIRC it had testing, but the results were a lot of dead animals so they brushed that under the carpet and went with "emergency" as an excuse for mass global human trials while they raked in serious bank.