The unnamed pals have set up their own group, Be Proactive to Help, to urge the public to boycott the troubled star's new LP 'Blackout'.
Writing on their MySpace page, they begged: "Our message is simple, don't buy her stuff until she's better."
The group - who include a former bodyguard, a backing dancer and a make-up artist, as well as several old friends - want fans to contact Britney's record label Jive, her management team and MTV to air their concerns.
They said: "Let them know you'll buy her album, but not until she is clean and sober and realises the amazing life she has created for herself.
"Let them know you'll be around to buy her music and her merchandise when she sets a better example of how to be a performer."