How dangerous is it to take expired medication?
When sick, some people rush to take whatever medicine they have at home, forgetting to check the expiration date or knowingly using it anyway. How dangerous can it be to accidentally take expired medication?
In moments of exhaustion from illness, many people are tempted to use expired medication as a temporary solution. However, according to advice from the U.S. Food and Drug Administration (FDA), this is not advisable. The agency clearly states: "If your medication has expired, do not use it."
The reason is that after the expiration date printed on the packaging, there is no guarantee that the medication will still be safe and effective. According to the FDA, the expiration date marks the time frame in which the manufacturer commits to ensuring that the quality, stability, and active ingredients of the medication remain at optimal levels. Beyond this date, everything becomes uncertain.
Are expired medications immediately dangerous?
Not necessarily. Don't panic if you accidentally use a paracetamol tablet that expired a few months ago. "Very few medications become toxic once they're past their expiration date," says Dr. James Reissig, a pharmacist at a leading U.S. university hospital, as quoted in The Science of Health. "Most medications simply lose their effectiveness over time due to changes in their chemical composition."
In other words, the problem isn't that the drug turns into a poison, but that its therapeutic efficacy is no longer reliable. This is especially dangerous in cases requiring precise or urgent treatment.
For medications used to treat serious conditions, such as insulin for diabetes, using expired medication can have severe consequences. Expired insulin no longer effectively controls blood sugar, and this can lead to severe, even life-threatening, hyperglycemia.
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Similarly, epinephrine injections, used in acute allergic reactions such as anaphylaxis, may also lose their effectiveness after their expiration date. While in some emergencies, using expired epinephrine may be better than nothing, this option should only be considered as a last resort and should not be relied upon as a regular solution.
One of the biggest dangers associated with using expired medication is when it comes to antibiotics. According to the FDA, some antibiotics become more susceptible to infection after their expiration date, while their effectiveness diminishes. This can lead to untreated infections, worsening the condition and, worse, contributing to the development of antibiotic resistance.
Antibiotic resistance is a global health crisis. Researchers estimate that in 2019, as many as 1.27 million people died from infections related to antibiotic resistance, and this number could continue to rise if left unchecked.
Why do medications have expiration dates?
Each medication undergoes rigorous testing to determine its stability period, which is the length of time that its active ingredients remain effective. The expiration date provided by the manufacturer is based on research data, ensuring product quality for consumers.
Dr. Simon Hodes, a family medicine physician in the UK, shared on the US health information website Health Essentials that: "The expiration date is there to protect you. It's not a random mark." This means that even if a medication looks "normal," hasn't changed color, and doesn't have a strange smell, there's no guarantee that it will still work as intended.
Many families tend to stockpile medication, but fail to check the expiration dates regularly. When they discover a batch of medications that are no longer usable, the solution isn't to throw them in the trash or flush them down the toilet.
According to FDA guidelines, only a very small number of medications are permitted to be flushed down the toilet, such as acute pain medications that carry a risk of addiction if misused. The rest, most medications, especially antibiotics and chronic medications, should be disposed of through drug recall programs.
Using expired medication should not be considered. While not all expired medications cause immediate harm, their reduced effectiveness, risk of infection, and potential dangers in emergency situations make their use unsafe.
Ideally, you should regularly check your home medicine cabinet and properly dispose of expired medication. And if you need medication but have nothing but old medicine, contact your doctor, the nearest pharmacy, or a health center for advice instead of making a decision on your own.
In healthcare, prevention remains the best form of protection, and that starts with small details like checking the expiration date of medication.
