Which system allows pharmacies and law enforcement to track sales of pseudoephedrine?

The correct choice, NPLEx, stands for the National Precursor Log Exchange. This system enables pharmacies to electronically track the sales of pseudoephedrine and other precursor drugs used to manufacture methamphetamine. NPLEx allows both pharmacies and law enforcement agencies to access real-time data on the purchases of these substances, which helps in preventing the illegal production of methamphetamine.

The system requires pharmacies to log every sale of drugs containing pseudoephedrine, capturing essential details such as the buyer's identification and the quantity sold. This information then becomes available to law enforcement, allowing them to identify suspicious patterns of purchase and take appropriate actions if needed. The ability to track sales across different jurisdictions through NPLEx enhances regulatory control over these substances, promoting public safety and health.

In contrast, while the Prescription Monitoring Program focuses on more comprehensive oversight of prescription drugs, and the Controlled Substance Tracking System and Drug Enforcement Administration System have their respective functions in regulation and enforcement, they do not specifically target the tracking of pseudoephedrine sales as effectively as NPLEx does.