Etoricoxib

Etoricoxib: strong relief — but your blood pressure rises with it

Etoricoxib is a selective COX-2 inhibitor (a coxib) and so an anti-inflammatory painkiller from the NSAID family. It is considerably gentler on the stomach lining than ibuprofen or diclofenac, but it pushes blood pressure up more strongly than the other drugs in the group. Untreated or poorly controlled high blood pressure is therefore a reason not to use it.

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Contents

  1. At a Glance: Technical Data Sheet
  2. How it works: what COX-2 selectivity means
  3. What it is used for: gout, osteoarthritis, rheumatic disease
  4. Dosing and taking it: once a day, for as short a time as possible
  5. Side effects and what helps against them
  6. Blood pressure rises with it — the most important section
  7. Stomach protection compared: etoricoxib, ibuprofen, diclofenac, naproxen
  8. Heart, kidneys, liver: what the stomach advantage does not cover
  9. Interactions: blood pressure tablets, aspirin, anticoagulants
  10. Special situations: pregnancy, older age, existing conditions
  11. Etoricoxib experiences: what patients really ask
  12. FAQ: Common questions about etoricoxib

1. At a Glance: Technical Data Sheet

PropertyDetails
Active ingredientEtoricoxib
ATC codeM01AH05
Drug classSelective COX-2 inhibitor (a "coxib"), a subgroup of the non-steroidal anti-inflammatory drugs (NSAIDs)
Dosage formsFilm-coated tablets, usually 30 mg, 60 mg, 90 mg and 120 mg
Half-lifeAround 22 hours — which is why one dose a day is enough
Maximum daily doseVaries with the indication; according to the SmPC, 120 mg is reserved for an acute gout attack and limited to a few days
Onset of effectPain relief usually within about an hour
BreakdownPredominantly in the liver, mainly via the enzyme CYP3A4
Prescription statusPrescription-only medicine
Notable featureMarkedly gentler on the stomach than classic NSAIDs; in exchange, the most pronounced rise in blood pressure of the group
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2. How it works: what COX-2 selectivity means

Pain and inflammation arise, among other routes, through messenger substances called prostaglandins. They are produced by two related enzymes: COX-1 and COX-2.¹

  • COX-1 works away permanently in the background. It maintains the protective layer of the stomach lining, supports the blood flow through the kidneys and is involved in clotting via the platelets.
  • COX-2 is ramped up above all where there is inflammation. It supplies the messengers that produce pain, swelling and redness.

Classic NSAIDs such as ibuprofen or diclofenac inhibit both enzymes. That is why they work well against inflammatory pain — and attack the stomach's protection at the same time. Etoricoxib inhibits COX-2 specifically and largely leaves COX-1 alone. From that follows its main advantage: markedly fewer stomach ulcers and stomach bleeds.

The catch sits in the same mechanism. COX-2 is not only an inflammation enzyme; it is also involved in regulating blood pressure and the salt and water balance in the kidney. If it is inhibited, the body holds back more sodium and water, and the regulation of the blood vessels shifts. That is exactly where the property that sets this drug apart from the others comes from: blood pressure rises — with etoricoxib as a rule more strongly than with other NSAIDs, and markedly dose-dependently.¹,²

3. What it is used for: gout, osteoarthritis, rheumatic disease

Etoricoxib is an anti-inflammatory painkiller and is used where inflammation is what drives the pain.

  • An acute gout attack: this is where etoricoxib plays to its strength — fast, powerful suppression of inflammation. According to the SmPC the highest strength is expressly intended for this situation alone, and only for a few days. The alternatives are colchicine or a corticosteroid; it does not replace long-term uric-acid-lowering treatment with allopurinol.
  • Osteoarthritis: for the symptomatic treatment of pain and inflammation, at the lowest effective dose and preferably not continuously. Movement, physiotherapy and taking weight off the joint remain the foundation — no painkiller changes that.³
  • Rheumatoid arthritis and ankylosing spondylitis: for the relief of pain and stiffness. It does not replace disease-modifying treatment, for instance with methotrexate.

Where joint pain is unexplained, the cause belongs on the table before anti-inflammatory treatment is given long term. How the common painkillers differ is set out in the guide painkillers compared.

4. Dosing and taking it: once a day, for as short a time as possible

The details below describe what the SmPC sets out as the usual approach. They are not a dosing instruction — the strength and the duration are set by the treating practice.

  1. Once daily, at a fixed time. Because of the half-life of around 22 hours, one dose a day is enough.
  2. With or without food. On an empty stomach the effect comes on slightly faster — a practical detail with acute pain.
  3. The lowest effective strength, for the shortest possible time. That is the central safety rule with all NSAIDs, and it matters particularly with etoricoxib, because both the effect on blood pressure and the cardiovascular risk increase with dose and duration.
  4. Do not combine it with other NSAIDs. Taking ibuprofen, diclofenac or naproxen on top adds up the risks, not the benefit. Paracetamol or metamizole work along different routes and are more likely to be combinable after checking.
  5. A missed dose: take it later if the day is still long — otherwise leave it out. A double amount is never the answer.
Before the first day of treatment: measure your blood pressure. A baseline reading is the only way of recognising later on whether anything has changed. How to measure correctly is set out in the guide measuring blood pressure correctly.

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5. Side effects and what helps against them

Commoner

  • A rise in blood pressure — the most typical and most relevant side effect, covered in detail in the next section.
  • Fluid retention in the legs and ankles — a consequence of the altered salt and water excretion. New or increasing swelling belongs in a conversation, particularly where there is heart or kidney disease.
  • Headaches, dizziness, tiredness — usually mild.
  • Gastrointestinal complaints — rarer than under classic NSAIDs, but not ruled out: heartburn, stomach pain, nausea.
  • Raised liver values — above all with prolonged use of higher strengths.

Rarer, but serious

  • Cardiovascular events such as a heart attack or a stroke — the risk rises with dose and duration of treatment.
  • A worsening of kidney function, up to acute kidney failure, particularly where there is a lack of fluid.
  • Gastrointestinal bleeding and ulcers — rarer than under classic NSAIDs, but possible.
  • Severe skin reactions and allergic reactions — rare, but a reason to stop immediately and contact a doctor.
Act immediately. Black stools, vomiting blood or sudden severe abdominal pain raise the suspicion of gastrointestinal bleeding. Chest pain, breathlessness, one-sided weakness or difficulty speaking raise the suspicion of a heart attack or a stroke. In both cases: stop the medicine and call 112 (emergency services in Germany) straight away. A widespread rash with blistering or involvement of the mucous membranes also needs assessing without delay — see side effects of medications.

6. Blood pressure rises with it — the most important section

All NSAIDs can push blood pressure up. With etoricoxib, though, this effect is particularly pronounced and dose-dependent — it is the main reason why this drug is handled more strictly than other painkillers from the same family.¹,²

The mechanism is well known: inhibiting COX-2 in the kidney means fewer vessel-widening messengers are formed, sodium and water are held back, and the blood volume rises. The result is a rise that creeps in over weeks and, without measurement, simply goes unnoticed — high blood pressure does not hurt.

A contraindication, not a recommendation. According to the SmPC, etoricoxib must not be used where high blood pressure is not adequately controlled. So if you know that your readings fluctuate or sit too high, you need to raise it before the first tablet — even if the prescription is already in your hand. Background on the condition in the article high blood pressure.

The monitoring plan the SmPC provides for

  • Before treatment starts: measure your blood pressure and write it down — without a baseline, every later reading is only a snapshot.
  • In the first two weeks: measure again. This is the window in which a rise typically shows up first.
  • Regularly after that, for as long as the treatment runs.
  • If there is a clear rise: the treatment is reconsidered — not simply topped up with an extra blood pressure tablet.

Always measure under the same conditions: at rest, sitting, after a few minutes' pause, ideally in the morning and in the evening. The instructions are in the guide measuring blood pressure correctly. A series of readings is worth incomparably more at your next appointment than the sentence "it was always fine, really".

7. Stomach protection compared: etoricoxib, ibuprofen, diclofenac, naproxen

The reason etoricoxib is prescribed at all is usually the stomach. Anyone who does not tolerate classic NSAIDs, or who has an increased risk of bleeding, benefits from the COX-2 selectivity. The comparison is still worth making in detail.

Active ingredientGastrointestinal riskBlood pressure & cardiovascularWhat matters in practice
EtoricoxibThe most favourable of the four — markedly fewer ulcers and bleedsThe strongest rise in blood pressure; a cardiovascular risk is presentOnce daily; contraindicated where high blood pressure is not adequately controlled
IbuprofenModerate risk, dose-dependentModerate; can weaken the effect of low-dose aspirinAvailable without prescription in small packs — and therefore often underestimated
DiclofenacA higher risk than ibuprofenAn unfavourable cardiovascular profileUsed sparingly where there is heart disease
NaproxenA higher stomach riskRegarded as comparatively favourable in cardiovascular termsA long duration of action, often taken twice daily
Table scrolls to the right

Within the same family there is a second coxib available, celecoxib, which is regarded as having somewhat less effect on blood pressure. Which drug fits is therefore not a question of potency alone but of your individual risk profile: the stomach against the heart, the circulation and the kidneys.

The stomach advantage shrinks with aspirin. Many people take low-dose aspirin to prevent a heart attack or a stroke. Aspirin inhibits COX-1 in the stomach — precisely the enzyme that etoricoxib spares. In this combination the coxib's stomach advantage is partly cancelled out. Gastric protection such as pantoprazole is then frequently prescribed alongside. More on this in the guide stomach problems from medications.

8. Heart, kidneys, liver: what the stomach advantage does not cover

A common misunderstanding goes: "coxibs are the gentle NSAIDs." That holds for the stomach — and for the stomach only. All the other NSAID risks remain.²

Heart and circulation

Like other NSAIDs, etoricoxib can increase the risk of a heart attack and a stroke, and increasingly so with dose and duration. Where coronary heart disease is present, after a heart attack or a stroke, with peripheral arterial disease and with heart failure of moderate severity or worse, etoricoxib is contraindicated according to the SmPC. With heart failure there is the added point that fluid retention can make the condition itself worse.

Kidneys

The COX enzymes help regulate the blood flow through the kidney. If COX-2 is inhibited, the filtration rate falls — with healthy kidneys usually without consequence, with pre-existing damage not. It becomes critical when several factors come together: etoricoxib plus a diuretic (water tablet) plus a sartan or an ACE inhibitor, and on top of that a gastrointestinal infection or a heatwave. With chronic kidney disease, etoricoxib is therefore used only with restrictions or not at all; the details are in the guide medications for kidney and liver disease.

Liver

Under etoricoxib, rises in the liver values occur more often than under some other NSAIDs, particularly with prolonged treatment at higher strengths. The SmPC therefore provides for checks of the liver values, above all where treatment is continuous. Where the values are clearly raised, or where the skin or the eyes turn yellow, the urine is dark or nausea persists, the treatment is stopped. How to make sense of the results is explained in the guide understanding blood values.

9. Interactions: blood pressure tablets, aspirin, anticoagulants

CombinationConsequenceWhat to do
Blood-pressure-lowering drugs such as ramipril, sartans, amlodipine, diureticsThe blood-pressure-lowering effect is weakened; blood pressure rises despite treatmentMeasure blood pressure closely; use etoricoxib for as short a time as possible
A diuretic + an ACE inhibitor or a sartan at the same timeA markedly increased risk of acute kidney failureHave this triple combination checked specifically with your practice or pharmacy
Low-dose aspirinThe coxib's stomach advantage is partly cancelled out, more stomach riskDiscuss gastric protection; never leave the aspirin out on your own
Anticoagulants such as phenprocoumonClotting values can shift, a higher risk of bleedingINR checks at the start and at the end of the treatment
Methotrexate and lithiumLevels can riseChecks and medical supervision
Other NSAIDs or corticosteroidsAn added gastrointestinal risk with no additional benefitDo not combine, or only on explicit instruction
AlcoholA higher risk of stomach bleeding, additional strain on the liverGo easy, see medications and alcohol
Table scrolls to the right

The first row is the one with the greatest everyday consequences: anyone who takes a blood pressure tablet and starts etoricoxib on top can suddenly have worse readings although nothing about the tablets has changed — and then wonders about the blood pressure tablet instead of the painkiller. Check new combinations in the guide drug interactions or directly in the interaction check in the brite app.

10. Special situations: pregnancy, older age, existing conditions

Pregnancy: do not use. According to the SmPC, etoricoxib is contraindicated throughout pregnancy and while breastfeeding. The last third of pregnancy is particularly critical: there, NSAIDs can prematurely close an important connecting blood vessel in the unborn child, impair the child's kidney function and reduce the amount of amniotic fluid. Caution is also called for if you are trying to conceive, because NSAIDs can affect ovulation. Always agree pain treatment in this phase of life with a doctor: medications during pregnancy.⁵

In older age, the gastrointestinal, cardiovascular and kidney risks all rise. At the same time, blood pressure tablets, diuretics and anticoagulants are more often in play — that is to say, exactly the combinations from section 9. So this applies with particular force here: the lowest strength, the shortest duration, clear review appointments. The guides medications in old age and polypharmacy offer orientation.

Etoricoxib is not suitable, according to the SmPC, where among other things there is an active stomach or duodenal ulcer, gastrointestinal bleeding, inflammatory bowel disease, severe impairment of liver function, markedly reduced kidney function, heart failure of moderate severity or worse, known cardiovascular disease, or high blood pressure that is not adequately controlled.

11. Etoricoxib experiences: what patients really ask

"My blood pressure has been fine for years — do I really have to measure it?"

Yes, and precisely then. The rise in blood pressure under etoricoxib creeps in over days to weeks and causes no complaints. Without a baseline and without a check in the first two weeks it simply does not get noticed — until it is picked up at a routine appointment and nobody thinks of the painkiller any more. Two minutes of measuring a day solves this problem completely.

"It works so well — can I take it long term?"

The effect really is powerful, and that is exactly what makes continuous use tempting. But the cardiovascular risk, the effect on blood pressure and the strain on the kidneys all increase with dose and duration. If pain persists, the right question is not "which painkiller for longer" but "what treats the cause" — physiotherapy, movement, taking weight off the joint, disease-modifying treatment in rheumatic disease, uric-acid-lowering treatment in gout.

"I have a sensitive stomach — do I still need pantoprazole?"

Not automatically. The whole point of a coxib is to make gastric protection unnecessary. It looks different where additional risk factors are present: low-dose aspirin, a previous stomach ulcer, corticosteroids, anticoagulants or older age. A proton pump inhibitor can then make sense. That is a medical decision, not a matter for self-medication.

"Can I take ibuprofen as well when it hurts more?"

No. Two NSAIDs at the same time add up the risks for the stomach, the kidneys and the circulation without increasing the benefit accordingly. If the effect is not enough, that belongs in a conversation — what can be combined are drugs with a different point of attack, such as paracetamol or metamizole after checking.

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FAQ: Common questions about etoricoxib

The pain-relieving effect usually sets in within about an hour. On an empty stomach it tends to be a little faster. Because of the long half-life of around 22 hours, one dose a day is generally enough.
The enzyme COX-2 is involved in the kidney in regulating salt and water as well as the width of the blood vessels. If it is inhibited, the body holds back more sodium and water and blood pressure rises. With etoricoxib this effect is more pronounced than with other NSAIDs and it increases with the dose. That is why readings before treatment starts and in the first two weeks are provided for.
Where high blood pressure is not adequately controlled, etoricoxib is contraindicated according to the SmPC. If your blood pressure is well controlled and stable, it can be used with monitoring. So raise your existing readings before the first tablet and measure regularly during the treatment.
Yes. Because etoricoxib largely spares the enzyme COX-1, stomach ulcers and bleeding occur less often than under classic NSAIDs such as ibuprofen, diclofenac or naproxen. This advantage is partly cancelled out, however, if low-dose aspirin is taken as well. And being free of complaints does not mean being free of risk.
For as short a time as possible and at the lowest effective strength. For an acute gout attack, the highest strength is limited to a few days according to the SmPC. With chronic complaints the need for it is reviewed regularly, because the risks to blood pressure, the cardiovascular system and the kidneys increase with dose and duration.
Weaken them yes, make them ineffective as a rule no. NSAIDs and coxibs reduce the effect of ACE inhibitors, sartans and diuretics. If your readings get worse after a pain treatment starts, the painkiller is an obvious explanation. So mention it explicitly at your appointment.
Fluid retention is a known side effect and comes from the altered salt and water excretion. New or increasing swelling of the ankles and lower legs belongs in a medical assessment, particularly where heart failure or kidney disease is known. Together with breathlessness or a rapid weight gain, a prompt assessment is important.
No. According to the SmPC, etoricoxib is contraindicated throughout pregnancy and while breastfeeding. In the last third of pregnancy NSAIDs are particularly dangerous, because they can prematurely close an important connecting blood vessel in the unborn child and impair its kidney function. For suitable pain treatment, turn to your practice.

Sources

  1. Summary of Product Characteristics (SmPC) for etoricoxib (current version, available through the information system of the regulatory authorities). pharmnet-bund.de
  2. BfArM (Germany's federal institute for drugs and medical devices) and EMA: safety information on non-steroidal anti-inflammatory drugs and COX-2 inhibitors — German source. bfarm.de
  3. AWMF guidelines on knee osteoarthritis (DGOOC) and on gouty arthritis (DEGAM) — German source. awmf.org
  4. Gesundheitsinformation.de (IQWiG): painkillers in osteoarthritis and inflammatory joint diseases. Accessed 2026 — German source. gesundheitsinformation.de
  5. Embryotox, Charité — German pharmacovigilance and advisory centre: NSAIDs and coxibs in pregnancy and breastfeeding. Accessed 2026. embryotox.de

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Medical disclaimer: This article is for general information and does not replace medical advice, diagnosis or treatment. Etoricoxib belongs to the non-steroidal anti-inflammatory drugs and should be used at the lowest effective strength and for the shortest possible period. It must not be taken where high blood pressure is not adequately controlled, where cardiovascular disease is known, or during pregnancy and breastfeeding. If you have black stools, vomit blood, or develop chest pain, breathlessness or signs of a stroke, call 112 (emergency services in Germany) immediately. The choice of medicine and the dose are always set individually by the treating practice. Last updated: August 2026.