Not official

the unofficial election results.

not having official authority or sanction; "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"[ant: official ]

not officially established; "the early election returns are unofficial"

Of or being a drug that is not listed in the United States Pharmacopeia or the National Formulary.

adjective

casual , contraband , informal , officious , offstage , unauthorized , unorthodox , unsanctioned