The AOD Drug, also known as the Anti-Oxygen Drug, is a drug made by the Ainant and used only by them.
The drug has been fine tuned to supply an Ainant with oxygen while breating in outer space, giving them the ability to breath in space without the need of a space suit.
The drug also effect the body on a genetic level to increase the lungs to a point that it can take in the nothing of space without bursting or breaking or whatever.
The drug looks like a small green vial that an Ainant needs to drink.
There are currently no known side effects
See also: List of Ainant tech