Sterility of Sustained-release Buprenorphine

Area of Science:

• Veterinary pharmacology
• Laboratory animal science
• Pharmaceutical science

Background:

• Sustained-release formulations provide prolonged analgesia in research animals, reducing stress and improving efficiency.
• Compounded buprenorphine SR-LAB has a shortened shelf-life of 28 days due to sterility concerns, increasing controlled substance waste.
• Expensive and legally mandated destruction processes for controlled substances pose a significant challenge.

Purpose of the Study:

• To evaluate the sterility of buprenorphine SR-LAB over a six-month period under general laboratory conditions.
• To determine if the 28-day sterility expiration can be safely extended.
• To assess the economic and logistical impact of controlled substance waste.

Main Methods:

• Five bottles of buprenorphine SR-LAB were tested monthly for six months.
• Sterility was assessed by testing for endotoxin, bacterial contamination, and fungal contamination.
• Samples were handled using aseptic techniques in a general laboratory setting.

Main Results:

• No endotoxin was detected in any of the tested bottles throughout the six-month study.
• No bacterial or fungal contamination was observed in the buprenorphine SR-LAB samples over the study period.
• All five bottles maintained sterility for the entire six months.

Conclusions:

• Buprenorphine SR-LAB can be maintained in a sterile state for at least six months when stored securely.
• Aseptic handling techniques are crucial for preserving the sterility of the formulation.
• Extending the shelf-life of buprenorphine SR-LAB is feasible, potentially reducing waste and costs.