Heather Locklear lockleararrest.jpgHeather Locklear was arrested last night in Santa Barbara for suspicion of driving under the influence of prescription medication.

Locklear, 47, was reportedly "driving erratically," according to a California Highway Patrol spokesman.

She was found in her car parked on a state highway blocking a lane and was taken into custody, tested for drugs and alcohol, booked and released.

Locklear was treated for anxiety and depression an Arizona facility in June.