Ruth Todd, of Noblesville, was arrested while visiting offender Patrick D. Mix, 33, from Marion.
During the visit, correctional staff observed Todd passing an unknown item to the offender. The item was confiscated along with other items found in her possession. These included marijuana, suboxone, "rocks" and pills.
The suspected narcotics will be sent to the Indiana State Police lab for testing and final analysis.
Todd was read her Miranda rights and interviewed by a correctional police officer, then transported to the Putnam County Jail. She was booked in at 1:45 p.m.
Mix, 33, is serving a 13-year sentence out of Marion County for a conviction of dealing cocaine, a Class B felony, with a projected release date of June 27, 2015.
He has been placed in administrative segregation and could face criminal charges pending the outcome of the investigation.
"I applaud the good work of correctional staff who acted swiftly and appropriately to stop the introduction of narcotics and contraband into our prison," PCF Superintendent Stanley Knight said. "We will not tolerate this type of behavior from those in our charge or persons entering our facility."