MDMA is what came before ecstasy and had an amazing ability to boost productivity and help people work through difficult and deep emotional wounds that were too difficult to talk about when sober. therapists would give small amounts of MDMA to patients to help talking about trauma.
If you want a medical drug then colistin is a third wave antibiotic that kills off bacteria that would be far too strong to be killed with 1st or 2nd wave antis. colistin helps save peoples lives.