Narcan® Nasal Spray 4 mg is a ready‑to‑use intranasal formulation supplied in a two‑device pack, designed for rapid administration during suspected opioid‑related respiratory emergencies. Each unit delivers a single, premeasured 4 mg dose with no assembly required, supporting immediate deployment by qualified clinicians in oral and maxillofacial and general dental practice settings. The sealed, single‑use devices maintain sterility and simplify activation in high‑acuity situations. Clear labeling, lot traceability, and standardized packaging help ensure reliability and accurate identification during emergency response.