Drugs/Recall·openFDA/drug

ENDO USA, Inc. — Class II: Buprenorphine Hydrochloride, Injection, 0.3mg/mL, 5x1 mL Single Dose Vials, Rx only, Manuf

MediumPublished May 20, 2026· AI-analyzed May 25, 2026View original FDA source
AI-generated regulatory interpretation. The four sections below are an analyst-style summary produced by an AI model from the original FDA source. Always verify against the source before any regulatory, clinical, or commercial decision.
What happened

ENDO USA, Inc. has initiated a Class II recall for Buprenorphine Hydrochloride Injection (0.3mg/mL) due to the presence of particulate matter identified as Buprenorphine free base.

Who it affects

This affects ENDO USA, Inc., healthcare providers utilizing NDC 42023-179-05, and quality assurance and manufacturing departments involved in injectable drug production.

Why it matters

The presence of particulate matter in injectable products presents clinical risks and indicates potential failures in formulation stability or manufacturing controls. The identification of the particulate as the active ingredient's free base suggests a possible pH or solubility issue in the manufacturing process that may require technical remediation to ensure long-term product stability.

Practical takeaway

Quality units should evaluate incoming material certificates of analysis and manufacturing crystallization parameters to prevent free base precipitation. QA teams should also verify that internal inspection protocols are sufficient to detect internal particulate matter before distribution.

FDA source material

Class II. Reason: Presence of particulate matter: identified as Buprenorphine free base. Product: Buprenorphine Hydrochloride, Injection, 0.3mg/mL, 5x1 mL Single Dose Vials, Rx only, Manufactured for: Endo USA, Malvern, PA 19855, NDC 42023-179-05.. Firm: ENDO USA, Inc. (Rochester MI United States). Status: Ongoing.

Open in openFDA / FDA.gov
AI-generated interpretation. Always verify critical decisions against the original FDA source. Generated with google/gemini-3-flash-preview.