Madison Police found Madison resident Deborah Rangel, 50, unconscious in a bathroom stall Saturday at a Madison public library after she allegedly injected heroin.
Officers and Madison Fire Department paramedics responded to a report of a woman unresponsive on the floor of the Lakeview Branch of the Madison Public Library bathroom, Madison Police Department spokesperson Joel DeSpain said.
After finding evidence that suggested a possible heroin overdose, paramedics on the scene administered Rangel with Narcan, a drug that offsets heroin's effects.
Rangel regained consciousness inside of the ambulance on the way to the hospital and was taken to jail after being checked out, DeSpain said.
Rangel was arrested on charges of possession of heroin and possession of drug paraphernalia, police said.
Officers recovered needles, suspected heroin and other evidence from Rangel's purse.