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Feminax Express for Period Pain Relief - 16 Tablets

Feminax Express for Period Pain Relief - 16 Tablets

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  • ✔️ Targets prostaglandins to relieve menstrual cramps at source
  • ✔️ Ibuprofen lysine absorbs faster than standard ibuprofen tablets
  • ✔️ Suitable for women and young people aged 12 and over
  • ✔️ Provides relief from period pain within approximately 30 minutes
  • ✔️ 16-tablet pack offers multi-day menstrual pain coverage

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Is Feminax Express Period Pain Relief Right for You?

 

Period pain — medically known as dysmenorrhoea — affects a significant number of women and young people in the UK every month. For some, it's a mild inconvenience. For others, it's genuinely debilitating. Feminax Express period pain relief is a clinically recognised, over-the-counter option designed to tackle that pain quickly, so you can get on with your day. Each pack contains 16 tablets, priced at just £4.46, making it an accessible choice for regular sufferers. If you're looking for broader pain relief options, Cured Pharmacy stocks a wide range to suit different needs.

The active ingredient is ibuprofen lysine 342mg — equivalent to 200mg of standard ibuprofen. The lysine salt form is key here, because it dissolves more rapidly in the stomach than conventional ibuprofen tablets, meaning the medicine is absorbed into the bloodstream faster. That speed matters when cramps hit suddenly.

 

How Does Feminax Express Work to Relieve Period Pain?

 

Dysmenorrhoea is largely driven by prostaglandins — hormone-like chemicals released by the uterine lining during menstruation. These compounds trigger uterine muscle contractions and inflammation, which is what causes that familiar cramping sensation. Feminax Express targets this process directly.

  • Ibuprofen lysine inhibits cyclo-oxygenase (COX-1 and COX-2) enzymes in the body.
  • Blocking these enzymes reduces prostaglandin production in the uterus.
  • Fewer prostaglandins means less intense uterine contractions and reduced inflammation.
  • The lysine salt formulation accelerates dissolution and absorption compared to standard ibuprofen, helping the medicine act more quickly.

The result is meaningful pain relief that typically begins within 30 minutes of taking the tablets, though individual response times can vary.

 

Who Is Feminax Express Suitable For?

 

Feminax Express is licensed for use in adults and young people aged 12 and over who experience period pain. It's particularly well suited to those who find standard ibuprofen tablets slow to take effect, or who want a product specifically formulated for menstrual discomfort. You might also find it useful alongside other women's health products available at Cured Pharmacy.

  • Women and young people aged 12 and over with primary dysmenorrhoea
  • Those who prefer a faster-acting ibuprofen formulation
  • People without contraindications to NSAIDs (non-steroidal anti-inflammatory drugs)
  • Those who are not pregnant, particularly not in the third trimester

 

How Does Feminax Express Compare to Standard Ibuprofen Tablets?

 

Feature Feminax Express (Ibuprofen Lysine 342mg) Standard Ibuprofen 200mg Tablets
Active ingredient Ibuprofen lysine (salt form) Ibuprofen (free acid)
Speed of absorption Faster — lysine salt dissolves more rapidly Standard absorption rate
Indicated use Specifically marketed for period pain General pain, fever, inflammation
Equivalent ibuprofen dose 200mg per tablet 200mg per tablet

 

How Should Feminax Express Be Stored and Who Should Seek Advice First?

 

Store Feminax Express below 25°C in a dry place, away from direct sunlight, and keep it out of the reach and sight of children. Do not use the tablets after the expiry date printed on the packaging. If you have any doubt about whether this product is right for you — for example, if you have kidney problems, a history of stomach ulcers, asthma, or are taking other medicines — speak to a pharmacist before use. Feminax Express period pain relief is an NSAID, and like all medicines in this class, it carries specific risks in certain patient groups that are worth discussing with a healthcare professional.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Feminax Express for Period Pain Relief - 16 Tablets specifications
Treatment category Period pain (dysmenorrhoea) relief
Mechanism of action COX-1 and COX-2 inhibition; reduces prostaglandin synthesis
Effective for Menstrual cramps and associated pain
Suitable for Women and young people aged 12 and over
Active ingredient Ibuprofen lysine 342mg (equivalent to ibuprofen 200mg)
Pack size 16 tablets
Strength 342mg ibuprofen lysine per tablet
UK classification General Sale List (GSL)
Drug class Non-steroidal anti-inflammatory drug (NSAID)
Preparation Film-coated tablet
Route of administration Oral

Specifications of Feminax Express for Period Pain Relief - 16 Tablets

 

What Is Feminax Express and What Is It Used For?

 

Feminax Express is an over-the-counter medicine containing ibuprofen lysine 342mg per tablet. It is used to relieve the pain associated with primary dysmenorrhoea — the cramping, aching discomfort that many women and young people experience during menstruation. The NHS recognises ibuprofen as one of the most effective treatments for period pain, and the lysine salt formulation in Feminax Express is designed to work faster than standard ibuprofen tablets. Each pack contains 16 tablets and is suitable for those aged 12 and over.

 

What Do You Need to Know Before Using Feminax Express?

 

Before taking Feminax Express, it's important to check whether it is appropriate for you. Do not take this medicine if any of the following apply:

  • You are allergic to ibuprofen, aspirin, or any other NSAID
  • You have or have had a peptic ulcer or gastrointestinal bleeding
  • You are in the third trimester of pregnancy (weeks 28 onwards)
  • You have severe heart failure, severe kidney disease, or severe liver disease
  • You are under 12 years of age

Speak to your pharmacist or GP before taking Feminax Express if you have asthma, Crohn's disease, lupus, high blood pressure, or a history of heart disease. The following medicines may interact with ibuprofen lysine:

  • Aspirin or other NSAIDs (increased risk of side effects)
  • Warfarin or other anticoagulants (increased bleeding risk)
  • Lithium (ibuprofen may increase lithium levels)
  • Methotrexate (risk of toxicity increased)
  • Antihypertensives and diuretics (ibuprofen may reduce their effectiveness)
  • SSRIs (increased risk of gastrointestinal bleeding)

 

How Should You Use Feminax Express?

 

Always read the patient information leaflet supplied with the pack before taking Feminax Express. Take the tablets exactly as directed below and never exceed the stated dose.

  1. Take 2 tablets as your initial dose at the onset of period pain.
  2. Swallow the tablets whole with a full glass of water.
  3. If pain persists, take 1 to 2 tablets every 4 to 6 hours as needed.
  4. Do not take more than 6 tablets in any 24-hour period.
  5. Taking the tablets with food or milk may help reduce stomach upset.
  6. Do not use for more than 3 days without seeking medical advice.
Indication Age Group Dose Frequency
Period pain 12–17 years 2 tablets initially, then 1–2 tablets Every 4–6 hours; max 6 tablets/24 hrs
Period pain 18 years and over 2 tablets initially, then 1–2 tablets Every 4–6 hours; max 6 tablets/24 hrs

 

What Are the Possible Side Effects of Feminax Express?

 

Like all medicines, Feminax Express can cause side effects, although not everyone experiences them. If you're managing multiple symptoms during your cycle, you may also want to explore our IBS and cramps collection for additional support options.

Common side effects (may affect up to 1 in 10 people):

  • Nausea or feeling sick
  • Indigestion or heartburn
  • Stomach discomfort or abdominal pain
  • Diarrhoea
  • Headache

Less common side effects (may affect up to 1 in 100 people):

  • Dizziness or drowsiness
  • Skin rash or itching
  • Fluid retention (swelling of ankles or feet)
  • Raised blood pressure
  • Gastric ulceration (rare but serious — stop use and seek medical advice immediately)

Stop taking Feminax Express and seek urgent medical attention if you experience signs of a serious allergic reaction, such as facial swelling, difficulty breathing, or a severe skin reaction. Black or tarry stools, or vomiting blood, are signs of gastrointestinal bleeding and require immediate medical attention.

 

How Should You Store Feminax Express?

 

Correct storage helps maintain the quality and safety of your tablets. Follow these guidelines:

  • Store below 25°C in a dry place
  • Keep away from direct sunlight and moisture
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the packaging
  • Do not store in a bathroom or near a sink
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy

If you have any questions about storage or suitability, your pharmacist at Cured Pharmacy is always happy to help. You can also browse our vitamins and supplements range if you're looking to support your overall wellbeing alongside your period pain management.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Feminax Express period pain relief online in the UK?

You can buy Feminax Express period pain relief online from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £4.46 per pack of 16 tablets. It is also widely available from high-street pharmacies and supermarkets without a prescription. Ordering online is a convenient option if you'd prefer discreet delivery to your door.

How does Feminax Express work in the body?

Feminax Express contains ibuprofen lysine, which inhibits the COX-1 and COX-2 enzymes responsible for producing prostaglandins — the chemicals that trigger uterine contractions and inflammation during menstruation. By reducing prostaglandin levels, the tablets help ease cramping and associated pain. The lysine salt form dissolves faster than standard ibuprofen, so it reaches the bloodstream more quickly.

How do I take Feminax Express step by step?

Take 2 tablets as your initial dose at the onset of period pain, swallowed whole with a full glass of water. If pain continues, you can take 1 to 2 tablets every 4 to 6 hours as needed. Never exceed 6 tablets in any 24-hour period, and consider taking them with food to reduce the chance of stomach upset.

What is the maximum dose of Feminax Express I can take per day?

The maximum daily dose is 6 tablets, which is equivalent to 1,200mg of ibuprofen. Always leave at least 4 hours between doses and do not take more than directed, even if your pain feels severe. If your pain is not controlled at the maximum dose, speak to your GP rather than exceeding the recommended amount.

How quickly does Feminax Express start working?

Because Feminax Express uses ibuprofen in its lysine salt form, it is absorbed more rapidly than standard ibuprofen tablets, with pain relief typically beginning within 30 minutes for most people. Individual response times can vary depending on factors such as whether you've eaten recently and your personal metabolism. Taking the tablets at the very first sign of period pain tends to give the best results.

Who should not take Feminax Express?

Feminax Express is not suitable for anyone who is allergic to ibuprofen, aspirin, or other NSAIDs, or for those with a history of peptic ulcers or gastrointestinal bleeding. It should not be used during the third trimester of pregnancy (from week 28 onwards), or by anyone under 12 years of age. People with severe heart, kidney, or liver conditions should also avoid it and speak to their GP about alternatives.

Can I take Feminax Express if I am pregnant?

Feminax Express must not be taken during the third trimester of pregnancy (weeks 28 and beyond) as ibuprofen can harm the unborn baby and cause complications during labour. Use during the first and second trimesters should only be considered on medical advice, as the NHS recommends paracetamol as the preferred painkiller during pregnancy. Always consult your midwife or GP before taking any medicine while pregnant.

What are the common side effects of Feminax Express?

The most commonly reported side effects include nausea, indigestion, heartburn, stomach discomfort, and headache. These are generally mild and can often be reduced by taking the tablets with food or a glass of milk. If you experience more serious symptoms such as black stools, vomiting blood, or signs of an allergic reaction, stop taking the tablets and seek medical attention immediately.

What happens if I miss a dose of Feminax Express?

If you miss a dose, simply take it as soon as you remember — provided at least 4 hours have passed since your last dose. Do not take a double dose to make up for a missed one, as this increases the risk of side effects. If your pain has eased in the meantime, you may not need to take the missed dose at all.

Can I take Feminax Express with paracetamol?

Yes, ibuprofen and paracetamol can generally be taken together as they work through different mechanisms and do not interact with each other. The NHS advises that combining the two can sometimes provide better pain relief than either medicine alone. However, do not take Feminax Express alongside other ibuprofen-containing products or NSAIDs, as this increases the risk of side effects.

What medicines interact with Feminax Express?

Feminax Express may interact with several medicines, including warfarin and other anticoagulants, aspirin, lithium, methotrexate, antihypertensives, diuretics, and SSRIs. These interactions can increase the risk of bleeding, reduce the effectiveness of blood pressure medicines, or raise the levels of other drugs in your body. Always tell your pharmacist about all medicines you are taking before starting Feminax Express.

What are the alternatives to Feminax Express for period pain?

If Feminax Express is not suitable for you, alternatives include standard ibuprofen 200mg or 400mg tablets, naproxen 250mg (available OTC as Feminax Ultra for those aged 15 and over), or paracetamol for those who cannot take NSAIDs. You can browse our full pain relief range at Cured Pharmacy to compare options. A pharmacist can help you choose the most appropriate product for your situation.

How long can I use Feminax Express for?

Feminax Express is intended for short-term use only — do not take it for more than 3 consecutive days without seeking medical advice. If your period pain is severe, persistent, or getting worse over time, it's worth speaking to your GP, as this could indicate an underlying condition such as endometriosis. Long-term regular use of NSAIDs without medical supervision is not recommended.

Is Feminax Express suitable for teenagers?

Yes, Feminax Express is licensed for use in young people aged 12 and over, making it suitable for teenagers experiencing period pain. The dosage is the same as for adults — 2 tablets initially, then 1 to 2 tablets every 4 to 6 hours, with a maximum of 6 tablets in 24 hours. Parents or guardians should supervise use in younger teenagers and consult a pharmacist if there is any uncertainty.

What are the latest findings on ibuprofen lysine for period pain?

Ibuprofen remains one of the most well-evidenced treatments for primary dysmenorrhoea, with the NHS and clinical guidelines consistently recommending NSAIDs as a first-line option. The lysine salt formulation has been shown in pharmacokinetic studies to achieve faster peak plasma concentrations than standard ibuprofen, supporting its use when rapid relief is needed. If you're interested in supporting your overall health alongside pain management, our women's health collection includes a range of relevant products.

How Should You Use Feminax Express?

Feminax Express tablets should be swallowed whole with a full glass of water. Taking them with food or milk is advisable if you have a sensitive stomach, as this can help reduce the risk of gastrointestinal discomfort.

What Is the Correct Dose of Feminax Express?

The correct dose depends on your age. All doses below refer to ibuprofen lysine 342mg tablets. Never exceed the maximum daily dose stated for your age group, and always leave at least 4 hours between doses.

When Is the Best Time to Use Feminax Express?

The best time to take Feminax Express is at the very first sign of period pain, before cramps become severe. Starting treatment early — rather than waiting until the pain is at its worst — tends to produce faster and more effective relief, because prostaglandin levels are lower and easier to manage at the onset of symptoms.

If you know from experience that your period pain tends to begin on a particular day of your cycle, you may find it helpful to have the tablets ready in advance. Some people find that taking a dose with breakfast on the first day of their period, before pain escalates, gives them better control throughout the day.

How Long Can You Use Feminax Express For?

Feminax Express is intended for short-term use only. Do not take it for more than 3 consecutive days without seeking advice from your GP or pharmacist. If your period pain is not adequately controlled within this time, or if it is worsening, this may indicate an underlying condition such as endometriosis or fibroids that requires further investigation.

Regular long-term use of NSAIDs without medical supervision is not recommended, as it can increase the risk of gastrointestinal, cardiovascular, and renal side effects. If you find yourself needing pain relief every month for extended periods, speak to your GP about longer-term management options.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Feminax Express?

Like all NSAIDs, Feminax Express can cause side effects in some people, though many users tolerate it well when taken as directed. The most frequently reported side effects are gastrointestinal in nature, and taking the tablets with food or milk can help reduce their likelihood.

  • Nausea or feeling sick
  • Indigestion or heartburn
  • Stomach pain or abdominal discomfort
  • Diarrhoea
  • Headache

What Are the Less Common Side Effects of Feminax Express?

Less common side effects occur in a smaller proportion of users but are still worth being aware of. If any of the following persist or concern you, stop taking the tablets and speak to a pharmacist or GP.

  • Dizziness or light-headedness
  • Drowsiness
  • Skin rash, itching, or hives
  • Fluid retention, particularly swelling of the ankles or feet
  • Raised blood pressure
  • Tinnitus (ringing in the ears)

What Are the Serious Side Effects of Feminax Express?

Serious side effects are rare but require immediate medical attention if they occur. Stop taking Feminax Express straight away and call 999 or go to your nearest A&E if you experience any of the following:

  • Signs of a severe allergic reaction: facial swelling, difficulty breathing, severe skin rash, or anaphylaxis
  • Black, tarry, or blood-streaked stools — a sign of gastrointestinal bleeding
  • Vomiting blood or material that looks like coffee grounds
  • Sudden worsening of kidney function (reduced urination, swelling)
  • Chest pain or shortness of breath

People with a history of peptic ulcers, heart disease, or kidney problems are at higher risk of serious side effects from NSAIDs and should seek medical advice before using this product.

What Should You Do If You Experience Side Effects of Feminax Express?

For mild side effects such as nausea or indigestion, try taking the tablets with food and a full glass of water. If side effects are persistent, uncomfortable, or unexpected, stop taking the tablets and consult your pharmacist or GP. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Feminax Express Interact With Other Medicines?

Yes. Ibuprofen lysine can interact with a number of commonly used medicines. Always inform your pharmacist of everything you are currently taking — including prescription medicines, over-the-counter products, and herbal remedies — before starting Feminax Express. Key interactions include warfarin and anticoagulants (increased bleeding risk), lithium (raised plasma levels), methotrexate (increased toxicity risk), antihypertensives and diuretics (reduced effectiveness), and SSRIs (increased gastrointestinal bleeding risk). Do not take Feminax Express alongside other ibuprofen-containing products or NSAIDs.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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