Mastradonian flu elixir
Referenced in the writers' first draft script of the  first season episode , Mastradonian flu elixir was a type of medication.

In the script's teaser scene, Phlox commented to one of the animals in his sickbay that he had been needing an egg, one of which he had just removed from that animal's container, for his Mastradonian flu elixir.

See also 
 Flu
Unused production material