Assistant Laboratory Animal Technician (ALAT) Practice Exam

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If a drug's expiration date reads "September 2018," after what date is it unsafe to use?

September 1, 2018
September 30, 2018
August 31, 2018
October 1, 2018

The correct answer is: September 30, 2018

The expiration date indicated on a drug, such as "September 2018," signifies that the product is considered safe to use until the last day of that month, which is September 30, 2018. This means that after this date, the manufacturer can no longer guarantee the safety or efficacy of the drug. Therefore, any use of the drug after September 30, 2018, could potentially be unsafe due to degradation, loss of potency, or harmful changes in the chemical composition of the drug. Understanding expiration dates is crucial in pharmaceutical practices, as it helps ensure patient safety and the reliability of medication effectiveness. For this reason, it's essential to respect the date and not use any medication once it has surpassed the expiration date indicated by the manufacturer.