Medicine & Health
How Long Does Aspirin Last?
Quick Answer
Aspirin lasts 2-3 years when unopened. Once opened, it should be used within 6-12 months.
Shelf Life by Storage Condition
| Storage Condition | Duration |
|---|---|
| Pantry (Unopened) | 2-3 years |
| Pantry (Opened) | 6-12 months |
| Refrigerator (Unopened) | 2-3 years |
| Refrigerator (Opened) | 6-12 months |
| Freezer | Not applicable |
How to Tell If It Has Gone Bad
- Change in color or appearance (yellowing or darkening)
- Unusual or bitter odor
- Tablet crumbling or powdering
- Reduced effectiveness or potency
Proper Storage Tips
- Store in a cool, dry place away from moisture and heat
- Keep container tightly closed when not in use
- Avoid storing in bathrooms or near sinks where humidity is high
Risks of Using Expired Aspirin
Using expired aspirin may result in reduced effectiveness, which can compromise pain relief or cardiovascular protection. Additionally, degraded aspirin can cause stomach irritation or other adverse effects due to chemical changes over time.
Get an Expiration Reminder
Enter your email and purchase date, and we will send you a reminder before your Aspirin expires.
Was this guide helpful?
Sources
Frequently Asked Questions
How long does Aspirin last?
Unopened aspirin typically lasts 2 to 3 years, while opened bottles are best used within 6 to 12 months.
Does Aspirin expire?
Yes, aspirin does expire and its potency decreases over time, especially after the expiration date.
How can you tell if Aspirin has gone bad?
Signs include discoloration, unusual odor, crumbling tablets, or reduced effectiveness.