A former North Carolina nurse, Melissa Elizabeth Chacona, was handed a four year prison sentence for replacing pain killers with saline. Chacona will also receive three-years of supervised release following the sentence. In early 2019, Chacona began taking vials of controlled substances including: fentanyl, morphine, and meperidine She would then replace the vials with saline. "Testing revealed that compromised vials contained less than 15% of the actual medication and that the tampering had rendered multiple vials unsterile." The release does not clarify what she did with the medications. As part of the plea, Chacona will have to permanently surrender her nursing license. Chacona was working in the Raleigh area at a surgical practice during the time the crimes were committed.