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Lemsip Max All In One Cold & Flu – 16 Capsules

Lemsip Max All In One Cold & Flu – 16 Capsules

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  • ✔️ Targets fever, congestion, sore throat, and chesty cough simultaneously
  • ✔️ Contains paracetamol 500mg for fast fever and pain relief
  • ✔️ Phenylephrine clears blocked nasal passages effectively
  • ✔️ Guaifenesin loosens chest mucus for productive coughing
  • ✔️ Suitable for adults and young people aged 16 and over

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What Are Lemsip Max All In One Capsules?

 

Lemsip Max All In One capsules are a multi-symptom cold and flu remedy designed to tackle several symptoms at once — fever, nasal congestion, sore throat, body aches, and a chesty cough. Each pack contains 16 capsules, making it a practical option to keep at home or in your bag when a cold strikes. Cold and flu are among the most common reasons people visit a pharmacist in the UK, and having a reliable over-the-counter option can make a real difference to how quickly you recover and how comfortable you feel in the meantime. You can browse the full range of cold and flu remedies at Cured Pharmacy if you want to compare your options.

Each capsule contains three active ingredients: paracetamol 500 mg, phenylephrine hydrochloride 6.1 mg, and guaifenesin 200 mg. This combination means you are not just masking one symptom — you are addressing the cluster of complaints that typically arrive together when a cold or flu takes hold.

 

How Do Lemsip Max All In One Capsules Work?

 

The three active ingredients each play a distinct role:

  • Paracetamol (500 mg per capsule) — acts as an analgesic and antipyretic, reducing fever and relieving the headaches, sore throat pain, and muscle aches associated with cold and flu.
  • Phenylephrine hydrochloride (6.1 mg per capsule) — a sympathomimetic decongestant that works by narrowing the blood vessels in the nasal lining, reducing swelling and relieving that blocked, stuffy feeling.
  • Guaifenesin (200 mg per capsule) — an expectorant that helps thin and loosen mucus in the airways, making it easier to cough up and clear from the chest.

Together, these three ingredients work through complementary mechanisms to address the most disruptive cold and flu symptoms simultaneously, rather than requiring you to take multiple separate products.

 

Who Should Use Lemsip Max All In One Capsules?

 

These capsules are suitable for adults and young people aged 16 and over who are experiencing the typical symptoms of a cold or flu. They are particularly useful if you have a combination of symptoms — for instance, a blocked nose alongside a chesty cough and a raised temperature — and want to manage them with a single product rather than several.

This product may be a good fit if you:

  • Are aged 16 or over and in generally good health
  • Have a combination of cold or flu symptoms including congestion, fever, sore throat, or chesty cough
  • Are not currently taking other paracetamol-containing medicines
  • Do not have uncontrolled high blood pressure, heart disease, or thyroid conditions

It is not suitable for children under 16, and people with certain health conditions should seek advice before use — more on that in the patient information section below.

 

How Do Lemsip Max All In One Capsules Compare to Alternatives?

 

Feature Lemsip Max All In One Capsules Day Nurse Capsules
Active ingredients Paracetamol, Phenylephrine, Guaifenesin Paracetamol, Phenylephrine, Pholcodine
Cough type targeted Chesty (productive) cough Dry (non-productive) cough
Suitable age 16 and over 16 and over
Pack size 16 capsules 20 capsules

 

How Should You Store Lemsip Max All In One Capsules?

 

Store your Lemsip Max All In One capsules below 25°C in a dry place, away from direct sunlight. Keep them out of reach and sight of children at all times. Do not use the capsules after the expiry date printed on the pack. If you are also managing other health concerns this winter, you might find it helpful to explore our vitamins and supplements range to support your immune system alongside symptomatic treatment.

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.

Lemsip Max All In One Cold & Flu – 16 Capsules specifications
Treatment category Cold and flu relief
Mechanism of action Analgesic/antipyretic (paracetamol), sympathomimetic decongestant (phenylephrine), expectorant (guaifenesin)
Effective for Fever, nasal congestion, sore throat, headache, body aches, chesty cough
Suitable for Adults and young people aged 16 and over
Active ingredients Paracetamol 500 mg, Phenylephrine HCl 6.1 mg, Guaifenesin 200 mg
Pack size 16 capsules
UK classification General Sale List (GSL)
Drug class Analgesic, decongestant, expectorant combination
Preparation Hard capsule
Route of administration Oral

Specifications of Lemsip Max All In One Cold & Flu – 16 Capsules

 

What Is Lemsip Max All In One and What Is It Used For?

 

Lemsip Max All In One Cold & Flu capsules are an over-the-counter combination medicine used to relieve the symptoms of colds and flu in adults and young people aged 16 and over. The product contains three active ingredients — paracetamol, phenylephrine hydrochloride, and guaifenesin — which together address fever, pain, nasal congestion, and chesty cough. It is classified as a General Sale List (GSL) medicine in the UK, meaning it can be purchased without a prescription from pharmacies and other retail outlets.

 

What Do You Need to Know Before Using Lemsip Max All In One?

 

Before taking these capsules, it is important to check whether they are appropriate for you. Do not take Lemsip Max All In One if any of the following apply:

  • You are under 16 years of age
  • You are allergic to paracetamol, phenylephrine, guaifenesin, or any other ingredient in the capsule
  • You are taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days
  • You have severe high blood pressure (hypertension) or severe coronary artery disease
  • You have an overactive thyroid (hyperthyroidism)
  • You are pregnant or breastfeeding without first seeking medical advice
  • You have severe liver or kidney disease

Speak to your pharmacist or GP before taking these capsules if you have diabetes, glaucoma, an enlarged prostate, or if you regularly drink alcohol. The following medicines may interact with Lemsip Max All In One:

  • Other paracetamol-containing products — risk of paracetamol overdose
  • Other sympathomimetic decongestants — additive cardiovascular effects
  • Tricyclic antidepressants — may enhance the pressor effect of phenylephrine
  • Warfarin and other anticoagulants — paracetamol may enhance anticoagulant effect with prolonged use
  • Metoclopramide or domperidone — may affect the rate of paracetamol absorption

 

How Should You Use Lemsip Max All In One?

 

Always read the patient information leaflet supplied with your pack before taking this medicine. Follow these steps:

  1. Swallow 2 capsules whole with a full glass of water.
  2. Do not chew or crush the capsules.
  3. Wait at least 4 hours before taking your next dose.
  4. Do not take more than 8 capsules in any 24-hour period.
  5. Do not take alongside any other paracetamol-containing product.
  6. If symptoms do not improve within 5 days, consult your pharmacist or GP.
Age Group Dose Frequency Maximum in 24 hours
Adults and young people aged 16+ 2 capsules Every 4–6 hours 8 capsules
Children under 16 Not suitable — do not use

 

What Are the Possible Side Effects of Lemsip Max All In One?

 

Like all medicines, Lemsip Max All In One can cause side effects, although not everyone will experience them. If you are concerned about any symptom, stop taking the capsules and speak to your pharmacist or GP. You can also find general guidance on managing cold and flu symptoms through the ear, nose and throat section of our pharmacy.

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

  • Nausea or stomach discomfort
  • Difficulty sleeping (insomnia)
  • Dizziness or light-headedness
  • Headache

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

  • Raised blood pressure
  • Palpitations or rapid heartbeat
  • Skin rash or itching
  • Dry mouth

Serious allergic reactions (anaphylaxis) are rare but require immediate medical attention. Signs include swelling of the face, lips, or throat, difficulty breathing, or a severe skin reaction. Stop taking the capsules immediately and call 999 if you experience these symptoms.

 

How Should You Store Lemsip Max All In One?

 

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

If you are looking for additional support during cold and flu season, our pain relief range includes further options for managing aches and fever alongside your recovery.

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 Lemsip Max All In One capsules online in the UK?

You can buy Lemsip Max All In One capsules directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £5.99 per pack of 16 capsules. No prescription is needed as this is an over-the-counter medicine. Browse the full cold and flu range for more options.

How do Lemsip Max All In One capsules work in the body?

Each capsule contains three active ingredients that work together: paracetamol reduces fever and relieves pain, phenylephrine hydrochloride narrows blood vessels in the nasal lining to relieve congestion, and guaifenesin thins mucus in the chest to make coughing more productive. This combination means you are targeting multiple symptoms with a single dose rather than taking several separate products.

How do I take Lemsip Max All In One capsules step by step?

Swallow 2 capsules whole with a full glass of water — do not chew or crush them. Wait at least 4 hours before taking your next dose, and never exceed 8 capsules in any 24-hour period. Always check you are not taking any other paracetamol-containing product at the same time.

What is the correct dose of Lemsip Max All In One for adults?

The recommended dose for adults and young people aged 16 and over is 2 capsules every 4 to 6 hours as needed. The maximum dose is 8 capsules in any 24-hour period. Do not take more than this even if your symptoms feel severe.

When is the best time to take Lemsip Max All In One capsules?

You can take these capsules at any time of day when your symptoms are troublesome, as they are not formulated specifically for daytime or night-time use. Taking them with or after food may help reduce the chance of stomach discomfort. Space each dose at least 4 hours apart throughout the day.

Are Lemsip Max All In One capsules suitable for children?

No — these capsules are not suitable for children under 16 years of age. If you need cold and flu relief for a younger child, speak to your pharmacist who can recommend an age-appropriate alternative. Never give adult cold and flu medicines to children.

Can I take Lemsip Max All In One capsules if I am pregnant?

These capsules are not recommended during pregnancy without first seeking advice from your GP or midwife, particularly because phenylephrine may affect blood flow. Paracetamol alone is generally considered the first-choice pain and fever reliever in pregnancy, but combination products should be used with caution. Always seek professional guidance before taking any medicine during pregnancy.

What medicines interact with Lemsip Max All In One capsules?

Do not take these capsules alongside other paracetamol-containing products, MAOIs, tricyclic antidepressants, other decongestants, or warfarin without first speaking to your pharmacist. Combining paracetamol from multiple sources is one of the most common causes of accidental overdose in the UK. Always tell your pharmacist about every medicine you are currently taking.

What are the side effects of Lemsip Max All In One capsules and how do I manage them?

Common side effects include nausea, dizziness, difficulty sleeping, and headache. Taking the capsules with food can help reduce stomach upset, and avoiding caffeine may help with sleep disturbance. If you experience palpitations, a significant rise in blood pressure, or any signs of an allergic reaction, stop taking the capsules and seek medical advice promptly.

How long can I take Lemsip Max All In One capsules for?

You should not take these capsules for more than 5 consecutive days without consulting a doctor or pharmacist. Cold and flu symptoms typically begin to improve within a few days, but if they persist or worsen beyond this point, it is important to seek professional advice to rule out a secondary infection or other cause.

Can I drink alcohol while taking Lemsip Max All In One capsules?

It is advisable to avoid alcohol while taking these capsules. Alcohol can increase the risk of liver damage when combined with paracetamol, particularly if you drink regularly or in large amounts. The NHS recommends not exceeding the recommended dose of paracetamol and avoiding alcohol during use.

What happens if I accidentally take too many Lemsip Max All In One capsules?

If you take more than the recommended dose, seek medical attention immediately — even if you feel well — because paracetamol overdose can cause serious liver damage that may not be immediately apparent. Go to your nearest A&E or call 999 and take the pack with you so medical staff can see exactly what you have taken. Do not wait for symptoms to appear before seeking help.

What are the alternatives to Lemsip Max All In One capsules?

Alternatives include other combination cold and flu remedies such as Day Nurse capsules (which contain pholcodine for dry coughs rather than guaifenesin), Beechams All-In-One liquid, or Night Nurse for evening use. You can explore the full range of options in our ear, nose and throat section. Your pharmacist can help you choose based on your specific symptoms.

Can I take Lemsip Max All In One capsules if I have high blood pressure?

You should speak to your pharmacist or GP before taking these capsules if you have high blood pressure, as phenylephrine is a decongestant that can raise blood pressure further. People with severe or uncontrolled hypertension should not take this product. Your pharmacist may be able to suggest a decongestant-free alternative that is safer for you.

What is the latest guidance on treating cold and flu symptoms in the UK?

The NHS advises that most colds and flu cases can be managed at home with rest, adequate fluid intake, and over-the-counter symptom relief such as paracetamol or combination cold remedies. Antibiotics are not effective against viral infections like colds and flu and should not be requested for these conditions. If you are in a high-risk group, speak to your GP about flu vaccination, which is the most effective preventive measure available.

How Should You Use Lemsip Max All In One Capsules?

Always read the patient information leaflet inside your pack before taking this medicine. These capsules are for oral use only — swallow them whole with a full glass of water and never chew, crush, or open them, as this can affect how the ingredients are released and absorbed.

Follow these steps each time you take a dose:

What Is the Correct Dose of Lemsip Max All In One Capsules?

The dose depends on your age. These capsules are not suitable for anyone under 16 years of age under any circumstances. Always stick to the dose shown below and never take more, even if your symptoms feel severe.

When Is the Best Time to Use Lemsip Max All In One Capsules?

You can take these capsules at any point during the day when your symptoms are causing discomfort. Taking them with or shortly after food may help reduce the likelihood of stomach upset, particularly if you are prone to nausea. Bear in mind that phenylephrine can occasionally cause difficulty sleeping, so if you are sensitive to stimulants, try to take your last dose of the day a few hours before bedtime.

There is no fixed schedule — simply take a dose when symptoms flare up, provided at least 4 hours have passed since your last dose. Consistency matters less than ensuring you do not exceed the maximum daily amount.

How Long Can You Use Lemsip Max All In One Capsules For?

These capsules are intended for short-term use only. Do not take them for more than 5 consecutive days without speaking to a pharmacist or GP. Cold and flu symptoms typically begin to ease within a few days, and if yours are not improving — or are getting worse — that is a signal to seek professional advice rather than continuing to self-treat.

Prolonged use of decongestants beyond the recommended period is not advised, and extended paracetamol use should always be discussed with a healthcare professional if you have any liver or kidney concerns.

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

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Anonymous

Great product, always count in Lemsip.

What Are the Most Common Side Effects of Lemsip Max All In One Capsules?

Most people tolerate Lemsip Max All In One capsules well when taken as directed, but some individuals do experience side effects. Common side effects are generally mild and tend to resolve on their own once you stop taking the medicine or as your body adjusts.

  • Nausea or stomach discomfort
  • Headache
  • Dizziness or light-headedness
  • Difficulty sleeping (insomnia)
  • Restlessness or feeling anxious

What Are the Less Common Side Effects of Lemsip Max All In One Capsules?

Less common side effects occur in a smaller proportion of users but are still worth being aware of, particularly if you have an underlying cardiovascular condition or are taking other medicines.

  • Raised blood pressure (hypertension)
  • Palpitations or a rapid heartbeat (tachycardia)
  • Dry mouth
  • Skin rash or itching
  • Urinary retention — particularly in men with an enlarged prostate

What Are the Serious Side Effects of Lemsip Max All In One Capsules?

Serious side effects are rare but require immediate medical attention. Paracetamol overdose — which can occur if you accidentally take too much or combine this product with other paracetamol-containing medicines — can cause severe liver damage that may not produce obvious symptoms for several days. This is why it is critical never to exceed the stated dose and to check all other medicines you are taking.

Serious allergic reactions (anaphylaxis) are very rare but can include swelling of the face, lips, tongue, or throat, difficulty breathing, a sudden drop in blood pressure, or a widespread skin reaction. If you experience any of these, stop taking the capsules immediately and call 999.

What Should You Do If You Experience Side Effects?

For mild side effects such as nausea, try taking the capsules with food. If you experience dizziness, avoid driving or operating machinery until the feeling passes. Should any side effect feel severe, persist beyond a day or two, or concern you in any way, stop taking the capsules and speak to your pharmacist or GP as soon as possible.

You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps regulators monitor the safety of medicines in real-world use.

Can Lemsip Max All In One Capsules Interact With Other Medicines?

Yes — interactions are possible and some can be clinically significant. The most important ones to be aware of include other paracetamol-containing products (which can lead to accidental overdose), MAOIs (which can cause a dangerous rise in blood pressure when combined with phenylephrine), and warfarin (where prolonged paracetamol use may enhance the anticoagulant effect). Tricyclic antidepressants may also amplify the cardiovascular effects of phenylephrine. Always tell your pharmacist about every medicine, supplement, or herbal remedy you are currently taking before starting these capsules.

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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