Common pain relievers such as ibuprofen, naproxen, and aspirin are used by millions of people every day to treat headaches, muscle pain, arthritis, fever, and inflammation. While these medicines can be very effective, health experts warn that they are not risk-free—especially when taken in high doses, for long periods, or by people with certain medical conditions.
These medicines belong to a group called nonsteroidal anti-inflammatory drugs (NSAIDs). Although they are available over the counter in many countries, they can sometimes cause serious side effects.
What Are Ibuprofen, Naproxen, and Aspirin?
- Ibuprofen – Often sold under brand names such as Advil or Nurofen, it is commonly used for pain, fever, and inflammation.
- Naproxen – Found in products like Aleve, it provides longer-lasting pain relief.
- Aspirin – Used for pain relief and, in low doses, to help prevent blood clots in some people.
Serious Side Effects to Be Aware Of
1. Stomach Bleeding and Ulcers
One of the most common serious risks of NSAIDs is damage to the stomach lining. This can lead to:
- Stomach ulcers
- Internal bleeding
- Severe abdominal pain
- Vomiting blood
- Black or tar-like stools
The risk is higher in:
- Adults over 60
- People taking blood thinners
- Those with a history of ulcers
- People who drink alcohol regularly
2. Heart Problems
Some NSAIDs, particularly ibuprofen and naproxen, may increase the risk of:
- Heart attack
- Stroke
- High blood pressure
The risk may be greater in people with existing heart disease or those taking high doses for long periods.
3. Kidney Damage
NSAIDs can reduce blood flow to the kidneys, potentially leading to kidney problems, especially in:
- Older adults
- People with kidney disease
- Those who are dehydrated
- People taking certain blood pressure medicines
Signs of kidney issues may include:
- Swelling in the legs or feet
- Reduced urination
- Fatigue
4. Allergic Reactions
Some individuals may experience serious allergic reactions, including:
- Rash
- Wheezing
- Swelling of the face or throat
- Difficulty breathing
Seek emergency medical help if these symptoms occur.
Important Medicine Interactions
NSAIDs can interact with many medications, including:
- Blood thinners (warfarin, apixaban)
- Steroids
- Certain antidepressants
- Blood pressure medicines
- Other NSAIDs
Taking multiple NSAIDs together (for example, ibuprofen plus aspirin) can increase the risk of side effects.
Who Should Be Especially Careful?
Speak with a healthcare professional before using NSAIDs if you:
- Have heart disease
- Have stomach ulcers
- Have kidney disease
- Are pregnant
- Take blood-thinning medication
- Need pain relief for more than a few days
Tips for Safer Use
✔ Use the lowest effective dose for the shortest time possible.
✔ Take with food if recommended.
✔ Avoid combining different NSAIDs unless advised by a doctor.
✔ Read medicine labels carefully.
✔ Seek medical advice if symptoms persist.
When to Get Urgent Medical Help
Seek immediate medical attention if you experience:
- Chest pain
- Sudden weakness or slurred speech
- Vomiting blood
- Black stools
- Severe allergic reactions
- Difficulty breathing
For many people, ibuprofen, naproxen, and aspirin are safe when used correctly. However, understanding the potential risks can help prevent serious complications and ensure these common medicines are used safely.