Ibuprofen

Ibuprofen is an NSAID used for short-term relief of mild to moderate pain (headache, dental pain, period pain, sprains, backache, arthritis flares) and to reduce fever. It eases symptoms; it does not cure long-term pain conditions on its own.

You can buy lower strengths from pharmacies for adults and children (follow age and weight limits); GPs may prescribe higher doses or longer courses. Always ask your pharmacist if you take tablets for blood pressure (such as Ramipril or Amlodipine), antidepressants (such as Fluoxetine or Sertraline), or stomach acid medicine (such as Omeprazole) — combinations need checking.

Ibuprofen does not treat bacterial or viral infections. Fever with confusion, stiff neck, non-blanching rash, severe sore throat, or breathing difficulty needs medical assessment, not only painkillers.

See your GP if pain lasts more than a few days, keeps returning, or is severe. Your GP or pharmacist may suggest Paracetamol, physiotherapy, or other options when ibuprofen is not the safest choice.

Ibuprofen reduces production of prostaglandins — chemicals involved in pain, inflammation, and fever — by blocking COX enzymes. That usually eases pain and swelling and can bring temperature down.

Tablets or capsules often start to work within about 30–60 minutes; some liquids may act a little sooner. Duration depends on strength and formulation — always follow the interval on your pack.

Because prostaglandins also help protect the stomach and maintain kidney blood flow, NSAIDs carry gut and kidney warnings, especially with higher doses, dehydration, older age, or other risk factors.

Ibuprofen dosage depends on age, weight (children), product, and whether it is OTC or prescribed. Never exceed the maximum daily dose on your label — higher doses increase side effects without proportional benefit.

• Typical adult OTC use is often 200 mg or 400 mg with food, up to three times daily — confirm on your pack.

• Children’s liquids are measured by syringe/spoon using the chart for weight or age — never guess.

• Take with food or milk if you get indigestion unless your clinician says otherwise.

• How long does ibuprofen take to work? Many people notice effect within 30–60 minutes.

• Use the lowest effective dose for the shortest time. If you need it most days for weeks, your GP may investigate the cause and suggest safer long-term options (for example physiotherapy, different analgesia, or stomach protection if an NSAID remains necessary).

Do not take ibuprofen together with other NSAIDs (e.g. Naproxen, Diclofenac, or Aspirin for pain) unless a specialist has told you to.

Common ibuprofen side effects are usually mild and more likely on an empty stomach, at higher doses, or after several days of regular use. Your GP or pharmacist may suggest food with doses, antacids, a different painkiller, or stomach protection (such as Omeprazole) if appropriate.

• Indigestion, heartburn, bloating, or stomach pain.

• Nausea, vomiting, diarrhoea, or constipation.

• Headache, dizziness, or ringing in the ears (tinnitus) — especially if the dose is high; seek advice if persistent.

• Skin rash, itching, or hives.

• Fluid retention or slight rise in blood pressure — tell your GP if you have heart failure or take blood pressure tablets.

Stop and speak to your pharmacist or GP if you get new severe stomach pain, black stools, or vomit blood — see urgent section below.

Call 999 if you vomit blood or coffee-ground material, pass black tarry stools, have crushing chest pain, severe breathlessness, collapse, or severe allergic swelling of the face, lips, or throat.

• Same-day GP or NHS 111: much less urine, confusion, severe abdominal pain even without visible bleeding, a widespread blistering rash, or wheeze after a dose (possible asthma-type reaction in susceptible people).

• Stomach or duodenal ulcer with bleeding or perforation — risk rises with age, alcohol, steroids, anticoagulants, SSRIs/SNRIs, and longer courses.

• Kidney injury — higher risk if dehydrated, unwell, or taking ACE inhibitors, ARBs, or diuretics (for example with Ramipril or Amlodipine-containing regimens).

• Cardiovascular risk (heart attack or stroke) increases with high doses or long duration in some people, including those with previous heart disease — discuss with your GP before regular use.

• Severe skin reactions (rare) — seek urgent care for widespread rash with fever or peeling.

Many people take ibuprofen only when needed, so a “missed dose” may not apply. If you are on a regular schedule (for example for arthritis) and forget a dose, take it when you remember unless the next dose is soon — do not double up.

What if I miss a dose for a child? Ask your pharmacist for the correct spacing — too many doses too close together can be dangerous.

Do not take ibuprofen if you have ever had a serious allergic reaction, asthma attack, or angioedema triggered by ibuprofen, Aspirin, or another NSAID unless a specialist has cleared it. Do not use during active stomach or duodenal ulcer bleeding.

• Third trimester of pregnancy — generally avoid; speak to your midwife or GP for safer pain relief options.

• Severe heart failure, advanced kidney or liver failure, or inflammatory bowel disease in flare — usually avoided.

• If you are dehydrated after vomiting or diarrhoea, avoid NSAIDs until you have recovered fluid unless a clinician advises otherwise.

• Aspirin-sensitive asthma: some people wheeze with NSAIDs — check with your GP before first use.

If you take Warfarin or a DOAC, steroids, Fluoxetine, Sertraline, or other SSRIs/SNRIs, Ramipril, Amlodipine, or water tablets, speak to your GP or pharmacist before regular ibuprofen — even products bought off the shelf.

Can I take ibuprofen with other medicines? It interacts with many drugs — blood thinners (bleeding risk), lithium, Methotrexate, some blood pressure tablets (kidney and BP effects), and SSRIs (bleeding risk). Always ask a pharmacist before combining.

Can I take ibuprofen with Paracetamol? Many adults use both short term for different types of pain if neither is contraindicated — your pharmacist can write a simple schedule so you do not exceed either maximum daily dose.

Low-dose Aspirin for the heart: ibuprofen can interfere with aspirin’s protective effect if taken at the wrong interval — your pharmacist may advise timing; do not stop aspirin without medical advice.

Alcohol plus ibuprofen raises stomach bleed risk. Herbal remedies count too — mention everything you take.

Avoid ibuprofen in pregnancy unless prescribed — especially from 30 weeks. If you need pain relief in pregnancy, your GP or midwife may suggest Paracetamol or other options that suit your stage of pregnancy.

If you used ibuprofen before knowing you were pregnant, tell your midwife or GP for tailored reassurance.

Breastfeeding: small amounts pass into milk; short courses at usual doses are often acceptable, but your health visitor, GP, or pharmacist can confirm for your baby.

Short occasional use in healthy adults usually needs no tests. Regular prescribed NSAID use may prompt blood pressure, kidney function, or blood count checks, and sometimes a stomach-protecting medicine if you have risk factors.

Book a GP review for new ankle swelling, rising BP, black stools, or ongoing indigestion on ibuprofen.

Alternatives depend on what you are treating (pain type, inflammation, fever), your stomach, heart, kidney health, and other tablets. Your GP or pharmacist may suggest Paracetamol, topical NSAIDs, physiotherapy, or — for some people — another anti-inflammatory such as Naproxen only if appropriate.

• Omeprazole or similar may be added to protect the stomach if long-term NSAID use is unavoidable — this is prescriber-led.

• Never combine multiple NSAIDs. Do not exceed OTC limits — see your GP if pain is not controlled.