Can You Take Expired Tablets?
No, you should not take expired medications in routine clinical practice, as the FDA does not recommend using pharmaceuticals past their expiration date due to unpredictable potency and potential safety concerns.
The Evidence on Expired Medications
What Happens After Expiration
- Research from the FDA's Shelf Life Extension Program (SLEP) found that 88% of properly stored medications could be extended an average of 66 months beyond their expiration date, though this varied dramatically by specific drug and lot 1
- Some medications maintain safety and efficacy well beyond expiration dates if stored correctly, but this stability is highly variable and unpredictable without specific testing of each individual lot 1
- The pharmaceutical stability after expiration depends critically on storage conditions—medications exposed to heat, humidity, or light degrade much faster 2, 1
Critical Exceptions Where Expiration Matters Most
- Nitroglycerin tablets lose potency within weeks to months even before expiration if not stored in tightly capped amber glass bottles in a refrigerator, and tablets carried in pill boxes deteriorate within one week 3
- Liquid formulations, biologics, and insulin are particularly unstable and should never be used past expiration 4
- Antibiotics pose special concern because subpotent doses may promote antimicrobial resistance 4
Why You Should Not Use Expired Medications
Regulatory and Safety Position
- Neither the FDA nor the American Medical Association recommend using expired pharmaceuticals, as manufacturers only guarantee full potency and safety until the labeled expiration date 4
- The expiration date represents the last date the manufacturer guarantees full potency (typically 90-100% of labeled strength) 1
Practical Risks
- Unpredictable potency: Without laboratory testing of your specific pill bottle, there is no way to know if the medication retains adequate strength 1
- Treatment failure: Taking subpotent medication may result in inadequate treatment of your condition 4
- Safety concerns: Some medications may degrade into harmful compounds, though this is rare with proper storage 2
Special Circumstances
When Expired Medications Might Be Considered
- In austere environments (disaster zones, military operations) where no alternatives exist, some expired medications may be preferable to no treatment at all 4
- This decision requires weighing the specific medication type, storage history, and clinical urgency against the risks of treatment failure 4
Common Pitfalls to Avoid
- Never assume all medications are equally stable—some drug classes (like nitroglycerin, tetracyclines, insulin) are particularly unstable 3, 4
- Storage matters enormously—medications kept in bathrooms (humid), cars (temperature extremes), or opened frequently degrade much faster 3, 1
- Don't use expired medications for serious infections or life-threatening conditions where treatment failure could have severe consequences 4