Days after his 18-month ban for cocaine ended, the 40-year-old said he has left cycling and bought a coffee shop in Italy.
The UCI imposes the suspension after Italian Luca Paolini tested positive for cocaine during the 2015 Tour de France.
The UCI says Luca Paolini was taking cocaine last year for recreational use, not to gain a competitive advantage.
Luca Paolini blames an addiction to sleeping pills for his use of cocaine, for which he tested positive during the Tour de France
Luca Paolini's doping case will be heard before the UCI's Anti-Doping Tribunal.
Andrew Hood takes a look at what's worth remembering, and forgetting, at the Tour through the opening nine stages
Luca Paolini, winner of 2015 Gent-Wevelgem, tests positive for cocaine at Tour de France and is kicked out of race by Katusha team
Can Alexander Kristoff pull off the Flanders-Roubaix double, or will someone else emerge from the dusty cobbles as Sunday's winner?
Russian outfit is brimming with confidence after Paolini's win at Gent-Wevelgem, and Kristoff's pair of wins at De Panne this week
A wind-lashed day in Flanders sees 160 riders abandon. Some question the safety of the conditions, but others celebrate the epic challenge