This might almost be a case where a word could come straight into the list as common, but I'll proceed with caution and make it a rare word for the time being.
An early example was from the
Consumer Research Magazine in 1992, writing about the idea of adding phytochemicals to various foods:
Such future foods are termed variously as "designer foods," "prescriptive foods," "pharma foods," "medicinal foods," "neutraceutical foods," or "physiologically functional foods."
However the term
pharma was soon being used in a more ominous sense. Looking at the collocates of the word in the News on the Web corpus,
big is the word most often accompanying
pharma. Without studying the examples, I imagine the majority of the references to
big pharma are not complimentary.