Lehne's Pharmacotherapeutics Practice Test 2026 - Free Pharmacotherapeutics Practice Questions and Study Guide

A missing DEA number on hydrocodone prescriptions can lead to the medication being denied at the pharmacy, as it is a critical piece of information that designates the prescriber as authorized to prescribe controlled substances. The Drug Enforcement Administration (DEA) requires that all prescriptions for controlled substances, which include hydrocodone, contain a legitimate DEA number from the prescriber to ensure that the prescribing is in compliance with federal regulations. If this number is absent, the pharmacy cannot verify that the prescription is valid and thereby cannot legally dispense the medication. This safeguard is in place to prevent prescription fraud and misuse of controlled substances.

In contrast, the other options do not accurately reflect the legal and regulatory framework surrounding controlled substance prescriptions. A prescription being filled without issues would violate the stipulations set forth by the DEA, and the notions of allowing only partial prescriptions or automatic refills for prescriptions lacking a DEA number do not align with the strict guidelines governing the dispensing of controlled drugs.