Tina Coan, 43, 4800 block Delematre Road, was charged with child endangering and operating a vehicle under the influence.
A Perkins police officer saw Coan pull out of the high school lot, so he stopped her on Patten Tract Road after the vehicle veered out of its lane several times, according to a police report.
Coan was lethargic and uncoordinated during the traffic stop and failed field sobriety tests, the report said.
Officers questioned Coan about her prescriptions. At first, Coan said she only had one prescription for anti-depressants, but police later learned she had two more for pain pills and patches.
Coan provided a urine sample that will be sent for testing, according to the report.
She was later released to a friend.