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Where ibuprofen comes from, and what it is approved for
It helps to separate three things that often get blurred together.
Traditional use. Ibuprofen is a synthetic medicine and has no traditional herbal history. Willow bark (Salix), which contains salicin, was used in various cultures for fever and pain well before modern pharmacology. That history belongs to a different substance, and it says nothing about how safe ibuprofen is.
Early research. Ibuprofen was developed in the 1950s and 1960s, notably by Dr Stewart Adams and his team at Boots in the UK, as a synthetic alternative to aspirin. It works by inhibiting cyclooxygenase (COX) enzymes, and it was designed with a lower gastrointestinal risk in mind. As the next section shows, “lower” is not the same as “none”.
Approved uses. In Australia, the Therapeutic Goods Administration (TGA) approves ibuprofen for temporary, short-term relief of acute pain and inflammation, and for reducing fever. That covers things like backache, period pain, dental pain, headaches, muscle strains and minor arthritis pain. The emphasis on short-term use matters for everything below.
Stomach: the most familiar problem
Ibuprofen belongs to the non-steroidal anti-inflammatory drug (NSAID) group, and the stomach is where many people first notice side effects. Nausea, indigestion and heartburn are common. Taking ibuprofen with food can help ease minor stomach upset.
The more serious risks are stomach ulcers and gastrointestinal bleeding. These are a particular concern for older adults and for people taking steroids or blood thinners. Healthdirect Australia covers these risks in its guidance on anti-inflammatory medicines.
A practical illustration: Imagine someone who takes ibuprofen on an empty stomach and gets burning discomfort. That is a signal to stop and talk to a pharmacist, not something to push through. Now imagine someone on a blood thinner who reaches for ibuprofen for a sore shoulder. Neither the label nor the convenience of the pharmacy shelf tells them that the combination carries extra bleeding risk. A pharmacist can.
Kidneys: where hydration and other medicines matter
Ibuprofen can cause fluid retention (oedema), raise blood pressure and reduce kidney function. For most healthy, well-hydrated people the risk is lower. It rises significantly in three situations:
- when someone is dehydrated
- when someone already has kidney impairment
- when someone takes blood pressure medicines such as ACE inhibitors or diuretics
This is the area where general articles most often fall short. The risk is not just about ibuprofen on its own. It is about what else is in the picture.
A practical illustration: Consider someone who has been unwell, isn’t drinking much, and takes a blood pressure medicine daily. Adding an anti-inflammatory on top of that is exactly the kind of overlap worth raising with a doctor or pharmacist before it happens, not after.
Heart and blood vessels: a small risk, but a real one
Many people assume the over-the-counter label settles the question of heart safety. The TGA’s safety review found that all NSAIDs, including over-the-counter ibuprofen, carry a small increased risk of cardiovascular events. These include high blood pressure, heart failure, heart attack and stroke. The risk is particularly relevant with high doses or prolonged use.
The word “small” is doing real work here. It does not mean the average person taking ibuprofen for a headache should be alarmed. But the risk is not zero, and ibuprofen can also worsen existing heart disease or heart failure. For someone with a heart condition, “small” is not necessarily the right frame, and that is a conversation for their doctor.
Who should check first
Based on the research, it is worth speaking to a doctor or pharmacist before using ibuprofen if any of these apply:
- you are over 65
- you have asthma
- you have existing heart, liver or kidney conditions
- you take blood thinners, steroids, or blood pressure medicines such as ACE inhibitors or diuretics
- you are dehydrated or have been unwell and not drinking much
- you have had stomach ulcers or bleeding before
Package labels give general directions, but they can’t account for your health history or your other medicines. Cardiovascular and kidney risks apply to higher-risk people even at over-the-counter strengths, which is why a short conversation with a pharmacist is worthwhile.
Using anti-inflammatories sensibly
- Think short-term. The approved use is temporary relief. Pain that keeps coming back needs a proper assessment, not an open-ended supply of anti-inflammatories.
- Know your other medicines. Interactions are a major source of avoidable harm, particularly with blood pressure medicines and blood thinners.
- Watch for warning signs. Persistent stomach pain, black stools, swelling, or chest symptoms are reasons to seek medical advice promptly.
- Ask, don’t assume. Pharmacists are accessible and can check ibuprofen against your medicines and conditions.
FAQ
Does taking ibuprofen with food make it safe for my stomach?
Food can help ease minor stomach upset, but it doesn’t remove the risk of ulcers or bleeding. That risk is higher in older adults and in people taking steroids or blood thinners.
Is over-the-counter ibuprofen risk-free for the heart?
No. The TGA’s review found a small increased cardiovascular risk across all NSAIDs, including over-the-counter ibuprofen, particularly with high doses or prolonged use.
Can ibuprofen affect my kidneys even if I feel fine?
It can reduce kidney function, and the risk rises with dehydration, existing kidney impairment, or use of blood pressure medicines like ACE inhibitors or diuretics. A pharmacist or doctor can advise on your situation.
Is willow bark a natural, safer version of ibuprofen?
Willow bark has a traditional history for fever and pain, but ibuprofen is a separate, synthetic medicine. Traditional use doesn’t establish safety or approved effectiveness for either.
The bottom line
Ibuprofen is an approved, widely used medicine for short-term pain, inflammation and fever. It is also an NSAID, and that brings real, well-documented risks to the stomach, kidneys and cardiovascular system. Those risks matter most for older adults, people with existing conditions, and anyone taking certain other medicines.
If you are unsure whether ibuprofen suits you, or if you find yourself needing it regularly, speak to your doctor or pharmacist. It is a quick conversation that can prevent a lot of trouble.
Sources referenced: Healthdirect Australia (anti-inflammatory medicines and ibuprofen safety) and the Therapeutic Goods Administration’s NSAID safety review. This article is for general education only and does not replace advice from a registered health professional.