The on-off boyfriend of supermodel Kate Moss was arrested after he was spotted driving his car erratically near his east London home, police said.
The 27-year-old Babyshambles frontman, along with car's other two occupants, were arrested on suspicion of drug possession.
All three men were released from Bethnal Green police station Sunday pending analysis of the substances recovered, said a Scotland Yard spokeswoman, speaking on condition of anonymity in line with force policy. They must report back to police next month.
Doherty has repeatedly sought treatment for his addiction and was expelled from The Libertines in 2004, after band members issued an ultimatum for him to tackle his drug habit.