UNSPSC 51311600: Antihistamine or H1 blocker 4-quinolones and acetates and aminopyridines and azepines

This classification denotes Antihistamine or H1 blocker drugs made from or based in part on 4-quinolones, acetates, aminopyridines, or azepines

UNSPSC 51311600 Antihistamine or H1 blocker 4-quinolones and acetates and aminopyridines and azepines is a Class code that covers pharmaceutical products, though recent state and local procurement activity under this code tag focuses narrowly on naloxone (a medication used to reverse opioid overdose) and associated drug deactivation systems rather than the broad antihistamine and derivative compounds the code nominally describes. State and local health departments and county health agencies appear to be the primary buyers, procuring these products through competitive bidding to support community health and overdose-response initiatives. Purchases typically specify unit volumes, delivery schedules, and compliance requirements including E-Verify and drug-free workplace certification, with contracts structured around fixed-fee pricing and multi-year terms with renewal options.

Seminole County, Florida posted an IFB in mid-2026 for naloxone and drug deactivation systems (IFB 60459723LAS, response deadline July 26, 2023), seeking 1,900 units of naloxone and 800 safe drug deactivation systems annually with quarterly deliveries to the Seminole County Community Health Building in Sanford. The county required vendors to include all shipping and delivery costs, maintain specified insurance coverages, and comply with potential FEMA-related federal regulations. The source reflects limited recent activity under this code; the single documented opportunity centers on Florida public health procurement. No other jurisdictions, states, or issuing bodies appear in the recent-opportunities record for this code.