The British Boxing Board of Control (BBBoC) has suspended Tyson Fury's licence "pending further investigation into anti-doping and medical issues".
Fury voluntarily vacated his WBO, WBA and IBO world heavyweight titles on Wednesday to concentrate on receiving treatment after recently revealing he had been taking cocaine to help deal with depression.
The BBBoC on Thursday confirmed that the troubled 28-year-old has now lost his licence 11 months after he shocked Wladimir Klitschko to be crowned world champion.
Fury's trainer and uncle, Peter Fury, last week confirmed that his nephew had failed a drug test after testing positive for cocaine.
A statement released by the former world champion on Wednesday said: "I feel that it is only fair and right and for the good of boxing to keep the titles active and allow the other contenders to fight for the vacant belts that I proudly won and held as the undefeated heavyweight champion of the world when I defeated the long-standing champion Wladimir Klitschko.
"I won the titles in the ring and I believe that they should be lost in the ring, but I'm unable to defend at this time and I have taken the hard and emotional decision to now officially vacate my treasured world titles and wish the next in-line contenders all the very best as I now enter another big challenge in my life which I know, like against Klitschko, I will conquer."
Fury twice pulled out of defending his WBA and WBO belts in a rematch with Klitschko.