Lot Numbers, Expiration Dates, and National Drug Code NDC Numbers - PTCB CPhT Pharmacy Test Prep
Summary
This video explains the purpose and significance of lot numbers, expiration dates, and National Drug Code (NDC) numbers for pharmaceutical products. Lot numbers identify specific manufacturing batches for recall tracking. Expiration dates indicate when a drug's potency and safety can no longer be guaranteed, advising against the use of expired medications. NDC numbers are unique 10-digit codes identifying drug manufacturers (labeler code), specific drug products (product code), and package sizes (package code), serving as crucial identifiers and safety checks in prescription fulfillment.
Key Insights
Lot numbers aid in targeted drug recalls by identifying specific batches.
Drug recalls occur when a product is found to be defective or potentially harmful. Recalls may be limited to certain batches, and the FDA will announce the affected lot numbers. The existence of lot numbers allows pharmacies to efficiently identify and remove only these specific affected products from their shelves, while retaining the unaffected lots. Lot numbers can be alphanumeric and vary in length, commonly found near the expiration date.
Expired drugs should be discarded as they may lose potency or become unsafe.
After the expiration date, the potency and safety of a drug cannot be assured. The strength may diminish, leading to reduced effectiveness, or the drug might degrade, potentially becoming contaminated or forming harmful byproducts. Although drugs stored under ideal conditions might retain some efficacy past their expiration, the inability to easily test them makes discarding expired drugs the safest practice. Expiration dates are typically listed as a month and year and signify the last day of that month.
The product code within an NDC is vital for ensuring prescription accuracy.
The middle part of the NDC number, the product code, is specific to the drug's strength and dosage form. This makes it an invaluable tool for pharmacists when filling prescriptions. By verifying the product code against the prescribed medication, pharmacists can ensure they have selected the correct drug strength and form, serving as a critical safety check to prevent dispensing errors, especially when different strengths of the same drug are available.
Sections
Lot Numbers
Lot numbers are unique identifiers for each manufactured batch of a drug.
A lot number, also known as a lot code, batch number, or code number, is a unique identifier assigned by the drug manufacturer to each batch of a particular product. These numbers are not assigned by the FDA but are crucial for tracking purposes. They allow manufacturers and pharmacies to identify products made at the same time and are essential for managing drug recalls. If a recall affects only specific batches, lot numbers enable precise removal of only the affected products from the market, leaving unaffected lots available.
Lot numbers aid in targeted drug recalls by identifying specific batches.
Drug recalls occur when a product is found to be defective or potentially harmful. Recalls may be limited to certain batches, and the FDA will announce the affected lot numbers. The existence of lot numbers allows pharmacies to efficiently identify and remove only these specific affected products from their shelves, while retaining the unaffected lots. Lot numbers can be alphanumeric and vary in length, commonly found near the expiration date.
Expiration Dates
Expiration dates guarantee drug stability, potency, and purity.
An expiration date indicates the period during which a drug product is known to remain stable, maintaining its strength, quality, and purity, provided it is stored according to labeled conditions. Manufacturers cannot guarantee the potency (strength) or safety of their drugs beyond this date. Over time, drug strength can decrease, rendering them ineffective. Drugs can also become contaminated or form toxic metabolites, as seen with tetracycline. The FDA requires expiration dates on all medications, including prescription and non-prescription drugs.
Expired drugs should be discarded as they may lose potency or become unsafe.
After the expiration date, the potency and safety of a drug cannot be assured. The strength may diminish, leading to reduced effectiveness, or the drug might degrade, potentially becoming contaminated or forming harmful byproducts. Although drugs stored under ideal conditions might retain some efficacy past their expiration, the inability to easily test them makes discarding expired drugs the safest practice. Expiration dates are typically listed as a month and year and signify the last day of that month.
Repackaged drugs receive a one-year expiration or manufacturer's date if sooner.
When drugs are repackaged within a pharmacy, they are assigned a new expiration date. This date is set as either one year from the date of repackaging or the original manufacturer's expiration date, whichever comes first. This ensures that repackaged medications also have a clearly defined period of guaranteed quality and safety.
National Drug Code (NDC) Numbers
NDC numbers are unique 10-digit identifiers for drug products.
National Drug Code (NDC) numbers are unique, 10-digit, three-part codes used to identify drug products. These numbers are separated by hyphens and consist of a labeler code (manufacturer), a product code (drug, strength, dosage form), and a package code (package size). The labeler code identifies the manufacturer, with all products from the same manufacturer sharing this code. The product code identifies the specific drug, its strength, and dosage form, making it the same for various manufacturers producing identical drugs. The package code indicates the size of the packaging.
The product code within an NDC is vital for ensuring prescription accuracy.
The middle part of the NDC number, the product code, is specific to the drug's strength and dosage form. This makes it an invaluable tool for pharmacists when filling prescriptions. By verifying the product code against the prescribed medication, pharmacists can ensure they have selected the correct drug strength and form, serving as a critical safety check to prevent dispensing errors, especially when different strengths of the same drug are available.
NDC numbers are required on original stock bottles for identification.
NDC numbers must be present on the original stock bottles produced by the manufacturer. They are typically located near the product name on the label. The NDC number acts as a universal identifier for each unique drug product. For example, a specific amoxicillin 500mg capsule by Sandoz will have a unique NDC, different from amoxicillin 250mg capsules by the same manufacturer due to the different product code.
Key Takeaways Summary
Lot numbers track batches for recalls; expiration dates ensure drug quality and safety.
Lot numbers are unique batch identifiers used for tracking and are crucial in drug recall situations. Expiration dates specify the guaranteed period of a drug's stability, potency, and purity. After this date, efficacy and safety are not assured, making it essential to discard expired medications.
NDC numbers identify drug products by manufacturer, drug type, and packaging.
National Drug Code (NDC) numbers are 10-digit, three-part codes: labeler code (manufacturer), product code (drug, strength, dosage form), and package code (package size). The product code is particularly important for prescription filling accuracy, serving as a distinct identifier for the specific drug product dispensed.
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