It happened just before 7 P.M. Wednesday at the Broad Avenue Pharmacy in Altoona.
Police say two men, one armed with a handgun, demanded drugs.
The pharmacist gave them OxyContin. The suspects fled on foot. State Police say the Penn State - Altoona student was arrested in a undercover buy operation. Search warrants uncovered a pound of marijuana and drug paraphernalia. Another Penn State student turned himself into authorities.