Trioxin

From Memory Alpha, the free Star Trek reference.

Trioxin is a medicine used in the treatment of respiratory injuries.

In an alternate timeline, The Doctor was ordered by Captain Janeway to inject her with trioxin after her alveoli were damaged by nebular gas in 2374. (VOY: "Year of Hell, Part II").

Trioxin is possibly a development from tri-ox compound due to its effect and use on the respiratory system. It's possible Trioxin was named in honor of the medication of the same name from the Return of the Living Dead series that led to reanimation of the deceased.