A Mesa man was arrested Thursday on drug charges after admitting he smoked marijuana to cope with his schizophrenia, police said.

Police said Andrew Flewelling, 26, said his marijuana addiction was the only thing that would calm his schizophrenia.

He was pulled over by Mesa police in the 1200 block of South Power Road for making an illegal turn on a red light, police said.

When the officer approached the vehicle, there was a strong odor of marijuana coming from the car.

Police said Flewelling's eyes were bloodshot and watery, and his tongue had a green film on it.

Flewelling said he had given a ride to his friends who were smoking marijuana, but he had not.

Police asked to search Flewelling's vehicle to which he consented. Police said they found a rolled marijuana joint in the car.

Police said Flewelling later tested positive in a drug test for marijuana.