What is shelf life in pharmaceutical industry?
Shelf life in pharmaceuticals refers to the length of time a drug product can be stored, under normal conditions, before it is considered unfit for use. It is the period during which a drug product is expected to remain within the approved specification, provided that it is stored according to the conditions specified on the label.
What are the key pointers of shelf life in pharma?
Shelf life is the time-period during which a drug product, if stored correctly, is expected to comply with the specification and remain stable.
It is the time from the date of manufacture and packaging of the finished drug product until the date by which the product must be used.
Shelf life is determined through stability testing, which involves storing the drug product under defined conditions and testing it at specified intervals to ensure it maintains its quality and purity.
The shelf life is usually expressed in terms of the month and year, e.g., “Exp. 12/2024” means the product should be used by December 2024.
What factors can affect the shelf life of a pharmaceutical product?
Several factors can affect the shelf life of a pharmaceutical product. That includes:
Temperature: Higher temperatures accelerate the decomposition of active drug ingredients which takes place faster with a temperature rise.
Humidity: Increased humidity levels lead to crust formation on tablets due to increased oxidation by air.
Light: Certain compounds are sensitive to light and degrade on exposure. For this reason, such pharmaceutical products need to be stored in light-tight containers
Reaction of active ingredients with excipients: Excipients are added to active ingredients to improve their characteristics. However, care should be exercised in making the right combination so that they remain inert towards the active ingredient
Exposure to air: Oxygen in the air can accelerate the oxidation of drug ingredients and shorten their useful life.
Microbial contamination: Unintended exposure to microbes can contaminate the product present in contaminated environments
How does shelf life ensure regulatory compliance in pharma?
Ensuring an adequate shelf life for pharmaceutical products is critical for regulatory compliance. By assigning and validating a shelf life, manufacturers can guarantee that their products remain safe and effective for patients throughout their specified duration. This helps uphold product quality and protect patient safety, which are key requirements of regulatory bodies. Shelf-life determination also ensures that labelling, packaging, and storage instructions are accurate and aligned with the product’s stability. Regular reviews and updates based on new data or feedback further demonstrate compliance with evolving standards. Ultimately, effective shelf-life management supports regulatory compliance by minimizing the risks associated with product degradation and maximizing the efficiency of pharmaceutical supply.
