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The labeled expiration date is a manufacturer's promise for a time until which the drug will have full efficacy and be safe as manufactured. [4] The labeled expiration date is not an indication of when a drug has become ineffective or unsafe to use. [4] Many drugs are effective for years after their expiration dates. [4]
The study showed that about 90% of them were safe and effective as long as 15 years past their expiration dates. Joel Davis, a former FDA expiration-date compliance chief, said that with a handful of exceptions - notably nitroglycerin, insulin and some liquid antibiotics - most expired drugs are probably effective. [8]
Ketoconazole, sold under the brand name Nizoral, among others, is an antiandrogen, antifungal, and antiglucocorticoid medication used to treat a number of fungal infections. [11] Applied to the skin it is used for fungal skin infections such as tinea , cutaneous candidiasis , pityriasis versicolor , dandruff , and seborrheic dermatitis . [ 12 ]
If you’ve ever used Nizoral shampoo, you’ve likely used ketoconazole. At 1% strength, ketoconazole is available over the counter, but 2% ketoconazole requires a prescription. dragana991 / iStock
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The study showed that about 90% of them were safe and effective as long as 15 years past their expiration dates. Joel Davis, a former FDA expiration-date compliance chief, said that with a handful of exceptions - notably nitroglycerin, insulin and some liquid antibiotics - most expired drugs are probably effective. [10]
Sell-by date: How long the store has to display the product Use-by date: When manufacturer thinks the product will be at its peak quality Best if used by date: The best date for flavor and quality