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Lemsip Max Cold & Flu Lemon - 10 Count

Lemsip Max Cold & Flu Lemon - 10 Count

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  • ✔️ Relieves cold and flu fever, headache, and sore throat
  • ✔️ Dual-action formula targets pain and nasal congestion
  • ✔️ Each sachet contains maximum-strength 1000mg paracetamol
  • ✔️ Warm lemon drink format soothes irritated throat instantly
  • ✔️ Suitable for adults and young people aged 16 and over

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What Is Lemsip Max Cold and Flu Lemon?

 

When a cold or flu hits, it rarely arrives quietly. The blocked nose, the pounding head, the sore throat — it all tends to land at once. Lemsip Max Cold and Flu Lemon sachets are a well-known over-the-counter remedy designed to tackle several of those symptoms together, in one warm, lemon-flavoured drink. Each pack contains 10 sachets, making it a practical option to keep at home or at work during the colder months. You can browse the full range of cold and flu treatments in our Cold and Flu collection.

Each sachet contains two active ingredients: paracetamol 1000 mg and phenylephrine hydrochloride 12.2 mg. Paracetamol is one of the most widely used analgesics and antipyretics in the UK, recommended by the NHS for managing pain and fever. Phenylephrine is a sympathomimetic decongestant that helps relieve nasal congestion. Together, they address the most disruptive cold and flu symptoms in a single dose.

 

How Does Lemsip Max Cold and Flu Work?

 

Understanding how a medicine works helps you use it more confidently. Here is how the two active ingredients in Lemsip Max Cold and Flu Lemon act in the body:

  • Paracetamol (1000 mg): Inhibits the production of prostaglandins in the brain and spinal cord, reducing the perception of pain and lowering elevated body temperature (fever).
  • Phenylephrine hydrochloride (12.2 mg): Acts as an alpha-adrenergic agonist, causing vasoconstriction in the nasal mucosa. This reduces swelling and congestion, making it easier to breathe through your nose.
  • Hot water vehicle: Dissolving the sachet in hot water creates steam inhalation as you drink, which may provide additional soothing relief for the upper airways.
  • Lemon flavouring: Masks the medicinal taste and makes the drink more palatable when you are feeling unwell.

The combination approach means you are not just masking one symptom — you are addressing fever, pain, and congestion simultaneously.

 

Who Should Use Lemsip Max Cold and Flu Lemon?

 

This product is intended for adults and young people aged 16 and over who are experiencing symptoms of a common cold or influenza. It is particularly useful if you have more than one symptom at the same time — for example, a headache alongside a blocked nose and a raised temperature. If you only have mild pain or a low-grade fever without congestion, a standard paracetamol product may be more appropriate.

Lemsip Max Cold and Flu Lemon may suit you if you:

  • Are aged 16 or over and experiencing cold or flu symptoms
  • Have a combination of fever, headache, sore throat, and nasal congestion
  • Prefer a hot drink format over tablets or capsules
  • Need symptom relief during the day or evening at home or work

 

How Does Lemsip Max Compare to Standard Lemsip?

 

Feature Lemsip Max Cold & Flu Lemon Lemsip Original Lemon
Paracetamol per sachet 1000 mg 650 mg
Decongestant Phenylephrine 12.2 mg Phenylephrine 6.1 mg
Suitable age 16 years and over 12 years and over
Symptom focus Multi-symptom (max strength) Mild to moderate symptoms

 

Is Lemsip Max Cold and Flu Safe to Store at Home?

 

Yes, provided you follow a few straightforward guidelines. Store sachets below 25°C in a dry place, away from direct sunlight and moisture. Keep them out of reach and sight of children at all times. Do not use any sachet past its printed expiry date — the active ingredients may degrade over time, reducing effectiveness. If you are managing multiple health conditions or taking regular medicines, it is worth checking our Pain Relief collection for alternatives that may better suit your needs.

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 Cold & Flu Lemon - 10 Count specifications
Treatment category Cold and flu symptom relief
Mechanism of action Analgesic/antipyretic (paracetamol) + nasal decongestant (phenylephrine)
Effective for Fever, headache, sore throat, nasal congestion associated with cold and flu
Suitable for Adults and young people aged 16 and over
Active ingredients Paracetamol 1000 mg, Phenylephrine hydrochloride 12.2 mg per sachet
Pack size 10 sachets
UK classification General Sale List (GSL)
Drug class Analgesic, antipyretic, sympathomimetic decongestant
Preparation Powder for oral solution (hot drink sachet)
Route of administration Oral

Specifications of Lemsip Max Cold & Flu Lemon - 10 Count

 

What Is Lemsip Max Cold & Flu Lemon and What Is It Used For?

 

Lemsip Max Cold & Flu Lemon is an over-the-counter medicine used to relieve the symptoms of colds and influenza in adults and young people aged 16 and over. It contains paracetamol 1000 mg to reduce fever and relieve pain, and phenylephrine hydrochloride 12.2 mg to ease nasal congestion. It is taken as a hot drink by dissolving the powder sachet in freshly boiled water. The NHS advises that most colds clear up on their own within 7 to 10 days, but symptom-relief medicines like this can make that time considerably more comfortable.

 

What Do You Need to Know Before Using Lemsip Max Cold & Flu Lemon?

 

Before taking this medicine, read the following carefully. Do not take Lemsip Max Cold & Flu Lemon if any of the following apply to you:

  • You are allergic to paracetamol, phenylephrine, or any other ingredient in the sachet
  • You are under 16 years of age
  • You have severe liver or kidney disease
  • You have uncontrolled high blood pressure or severe cardiovascular disease
  • You are taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days
  • You are pregnant or breastfeeding — seek medical advice first
  • You have an overactive thyroid (hyperthyroidism) or diabetes
  • You have difficulty urinating, such as due to an enlarged prostate

The following medicines may interact with Lemsip Max Cold & Flu Lemon:

  • Other paracetamol-containing products — risk of paracetamol overdose
  • Tricyclic antidepressants and MAOIs — may intensify the effect of phenylephrine
  • Beta-blockers and other antihypertensives — phenylephrine may reduce their effectiveness
  • Warfarin and other anticoagulants — regular paracetamol use may affect INR
  • Metoclopramide or domperidone — may alter paracetamol absorption rate

If you are taking any prescription medicines or have a long-term health condition, speak to your pharmacist before use. You may also find it helpful to explore our Vitamins and Supplements collection to support your immune system during recovery.

 

How Should You Use Lemsip Max Cold & Flu Lemon?

 

Always use this medicine exactly as directed on the label. Do not exceed the stated dose. Here is how to prepare and take each sachet:

  1. Empty the contents of one sachet into a large mug.
  2. Add freshly boiled water — approximately 200–250 ml.
  3. Stir thoroughly until the powder is fully dissolved.
  4. Allow the drink to cool to a comfortable temperature before sipping.
  5. Drink the full contents of the mug.
  6. Wait at least four hours before taking the next sachet.
Indication Age Group Dose Frequency
Cold & flu symptoms Adults & young people 16+ 1 sachet Every 4–6 hours (max 4 sachets in 24 hours)
Cold & flu symptoms Under 16 years Not suitable Not applicable

 

What Are the Possible Side Effects of Lemsip Max Cold & Flu Lemon?

 

Like all medicines, Lemsip Max Cold & Flu Lemon can cause side effects, although not everyone experiences them. The NHS advises that paracetamol is generally well tolerated at recommended doses, but the phenylephrine component can cause stimulant-type effects in some people.

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

  • Nausea or stomach discomfort
  • Difficulty sleeping (insomnia)
  • Increased heart rate (palpitations)
  • Headache (if not already present)
  • Restlessness or mild anxiety

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

  • Raised blood pressure
  • Skin rash or itching
  • Dry mouth
  • Urinary retention (particularly in men with prostate issues)

Stop taking this medicine and seek immediate medical attention if you develop signs of a serious allergic reaction, such as swelling of the face, lips, or throat, difficulty breathing, or a severe skin rash. Paracetamol overdose is a medical emergency — if you suspect you or someone else has taken too much, go to A&E immediately, even if you feel well.

 

How Should You Store Lemsip Max Cold & Flu Lemon?

 

Proper storage keeps the medicine safe and effective for its full shelf life. If you are also managing other health concerns during winter, our Ear, Nose & Throat collection has additional products that may help.

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and moisture
  • Do not store in a bathroom cabinet where humidity is high
  • Keep all sachets in the original packaging until use
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the pack
  • Do not dispose of medicines via wastewater or household waste — return unused sachets to your pharmacy

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 Cold and Flu online in the UK?

You can order Lemsip Max Cold and Flu Lemon sachets directly from Cured Pharmacy online, with fast UK delivery to your door. It is available without a prescription as a General Sale List medicine. Browse our full Cold and Flu collection for related products too.

How does Lemsip Max Cold and Flu work in the body?

Lemsip Max Cold and Flu contains paracetamol, which reduces fever and relieves pain by inhibiting prostaglandin synthesis in the central nervous system. Phenylephrine hydrochloride acts as a nasal decongestant by constricting blood vessels in the nasal lining, reducing swelling and improving airflow. Together, these two ingredients target the most common and disruptive cold and flu symptoms simultaneously.

How do I prepare and take a Lemsip Max sachet correctly?

Empty one sachet into a mug, pour in freshly boiled water, and stir until the powder is fully dissolved. Allow the drink to cool slightly before sipping — do not drink it scalding hot. Take one sachet every four to six hours as needed, and never exceed four sachets in any 24-hour period.

What is the correct dose of Lemsip Max Cold and Flu for adults?

The recommended dose for adults and young people aged 16 and over is one sachet dissolved in hot water, taken every four to six hours. Do not take more than four sachets within any 24-hour period. If your symptoms have not improved after three days, speak to your GP or pharmacist.

Can I take Lemsip Max Cold and Flu with paracetamol tablets?

No — you must not take Lemsip Max Cold and Flu alongside any other paracetamol-containing product, including standard paracetamol tablets, co-codamol, or other cold and flu remedies. Each sachet already contains the maximum single adult dose of paracetamol (1000 mg), and exceeding the daily limit of 4000 mg can cause serious liver damage. Always check the ingredients of any other medicine you are taking before combining.

Is Lemsip Max Cold and Flu suitable for children?

No — Lemsip Max Cold and Flu Lemon is not suitable for anyone under 16 years of age due to the higher doses of paracetamol and phenylephrine it contains. For children, speak to your pharmacist about age-appropriate alternatives. You can also explore our Baby and Toddler collection for suitable products for younger children.

Can I take Lemsip Max Cold and Flu if I am pregnant?

You should seek medical advice before taking Lemsip Max Cold and Flu if you are pregnant or breastfeeding. While paracetamol is generally considered the pain reliever of choice during pregnancy at the lowest effective dose, the phenylephrine decongestant component is not recommended during pregnancy. Always consult your GP or midwife before taking any medicine when pregnant.

What are the side effects of Lemsip Max Cold and Flu?

Common side effects include nausea, difficulty sleeping, increased heart rate, and mild restlessness — these are largely related to the phenylephrine content. Less commonly, some people experience raised blood pressure, skin rash, or dry mouth. If you develop any signs of a serious allergic reaction such as facial swelling or difficulty breathing, stop taking the medicine and seek emergency medical help immediately.

How long can you take Lemsip Max Cold and Flu for?

You should not use Lemsip Max Cold and Flu for more than three consecutive days without seeking medical advice. Most cold symptoms begin to improve within this timeframe, but if they persist or worsen, it is important to see your GP to rule out a secondary infection such as sinusitis or a chest infection. Prolonged use of decongestants can also cause rebound congestion in some individuals.

What happens if I accidentally take too many Lemsip Max sachets?

Taking more than the recommended dose of Lemsip Max Cold and Flu is a medical emergency due to the risk of paracetamol overdose, which can cause severe liver damage even if you feel well initially. If you think you or someone else has taken too much, go to your nearest A&E department immediately and take the packaging with you. Do not wait for symptoms to appear before seeking help.

Can I drink alcohol while taking Lemsip Max Cold and Flu?

It is advisable to avoid alcohol while taking Lemsip Max Cold and Flu. Alcohol combined with paracetamol increases the risk of liver damage, particularly if you drink regularly or in large amounts. The NHS recommends avoiding alcohol when taking paracetamol-containing medicines, especially if you are unwell.

Who should not take Lemsip Max Cold and Flu?

This medicine is not suitable for people under 16, those with severe liver or kidney disease, uncontrolled high blood pressure, hyperthyroidism, or those taking MAOIs or certain antidepressants. People with diabetes, an enlarged prostate, or cardiovascular disease should also seek advice before use. If you are unsure whether this product is right for you, speak to your pharmacist before purchasing.

What are the alternatives to Lemsip Max Cold and Flu?

Alternatives include standard paracetamol or ibuprofen for pain and fever, saline nasal sprays for congestion, and throat lozenges for sore throat relief. If you prefer tablets over hot drinks, there are multi-symptom cold and flu tablet formulations available. You can explore a range of options in our Ear, Nose & Throat collection for targeted symptom relief.

Does Lemsip Max Cold and Flu help with a sore throat?

Yes — the paracetamol in Lemsip Max Cold and Flu helps relieve the pain associated with a sore throat by reducing inflammation-related pain signals. The warm drink itself may also provide soothing comfort to an irritated throat. However, if your sore throat is severe, lasts longer than a week, or is accompanied by a high fever and difficulty swallowing, you should see a GP to rule out a bacterial infection such as tonsillitis.

What is the latest guidance on treating cold and flu symptoms at home?

The NHS recommends rest, staying hydrated, and using over-the-counter medicines such as paracetamol or ibuprofen to manage fever and pain at home for most cold and flu cases. Decongestants like phenylephrine can help with nasal congestion but should not be used for more than a few days. Antibiotics are not effective against viral infections like colds and flu, so they are not routinely prescribed for these conditions.

How Should You Use Lemsip Max Cold & Flu Lemon?

Using Lemsip Max Cold & Flu Lemon correctly ensures you get the most effective symptom relief while staying safe. Always read the label before use and follow these steps carefully each time you take a sachet.

Do not add milk or other liquids to the sachet. Water alone is required for the medicine to dissolve and work correctly. If you find the taste too strong, you may add a small amount of honey once the drink has cooled, but avoid adding anything that could interfere with the medicine.

What Is the Correct Dose of Lemsip Max Cold & Flu Lemon?

The dose depends on your age. This product is only suitable for adults and young people aged 16 and over. Never give this product to anyone under 16, as the paracetamol and phenylephrine doses are too high for younger age groups. Always stick to the recommended dose — more is not better and can be dangerous.

When Is the Best Time to Use Lemsip Max Cold & Flu Lemon?

You can take Lemsip Max Cold & Flu Lemon at any time of day when your symptoms are troublesome, provided you space each sachet at least four hours apart. Many people find it particularly helpful first thing in the morning when symptoms tend to feel most intense, or in the evening to ease discomfort before sleep. Bear in mind that phenylephrine can cause mild stimulant effects in some people, so if you find it affects your sleep, try to take your last sachet of the day at least two to three hours before bedtime.

You can take the sachets with or without food. If you have a sensitive stomach, taking it after a light meal or snack may help reduce any nausea.

How Long Can You Use Lemsip Max Cold & Flu Lemon For?

Lemsip Max Cold & Flu Lemon is intended for short-term use only. Do not use it for more than three consecutive days without seeking advice from your GP or pharmacist. The NHS notes that most cold symptoms begin to improve within seven to ten days, but if your symptoms are not improving after three days of treatment, or if they are getting worse, you should seek medical attention. Prolonged use of phenylephrine-containing decongestants is not recommended, as it may lead to rebound congestion or mask a more serious underlying condition.

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

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What Are the Most Common Side Effects of Lemsip Max Cold & Flu Lemon?

Most people tolerate Lemsip Max Cold & Flu Lemon well when taken at the recommended dose. However, the phenylephrine component in particular can cause stimulant-type effects in some individuals. Common side effects — those that may affect up to 1 in 10 people — include:

  • Nausea or mild stomach discomfort
  • Difficulty sleeping (insomnia)
  • Increased heart rate or palpitations
  • Mild headache (if not already present as a cold symptom)
  • Restlessness or mild anxiety

These effects are usually mild and resolve once you stop taking the medicine. Taking the sachet after food may help reduce nausea.

What Are the Less Common Side Effects of Lemsip Max Cold & Flu Lemon?

Less common side effects — affecting up to 1 in 100 people — are generally related to the decongestant action of phenylephrine or individual sensitivity to the ingredients. These include:

  • Raised blood pressure
  • Skin rash or itching
  • Dry mouth
  • Urinary retention (particularly in men with an enlarged prostate)
  • Dizziness or light-headedness
  • Sweating

If you notice any of these effects and they are persistent or bothersome, stop taking the medicine and speak to your pharmacist or GP.

What Are the Serious Side Effects of Lemsip Max Cold & Flu Lemon?

Serious side effects are rare but require immediate medical attention. The most significant risk associated with this product is paracetamol overdose, which can cause severe and potentially irreversible liver damage — even if you feel well at the time. This can happen if you accidentally take too many sachets or combine this product with other paracetamol-containing medicines.

Stop taking Lemsip Max Cold & Flu Lemon and seek emergency help immediately if you experience any of the following:

  • Signs of a serious allergic reaction: swelling of the face, lips, tongue, or throat; difficulty breathing; severe skin rash or hives
  • Chest pain or a very rapid or irregular heartbeat
  • Severe dizziness or fainting
  • Yellowing of the skin or eyes (jaundice) — a sign of liver problems

What Should You Do If You Experience Side Effects of Lemsip Max Cold & Flu Lemon?

For mild side effects such as nausea or difficulty sleeping, try taking the sachet after food and avoiding your last dose close to bedtime. If side effects are moderate or persistent, stop taking the medicine and consult your pharmacist. In the case of a suspected overdose or serious allergic reaction, call 999 or go to your nearest A&E immediately — take the packaging with you so medical staff can see exactly what you have taken.

You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Lemsip Max Cold & Flu Lemon Interact With Other Medicines?

Yes — this product has several clinically important interactions. The paracetamol content can interact with warfarin (increasing bleeding risk with regular use) and medicines that affect liver enzymes. The phenylephrine component interacts with MAOIs, tricyclic antidepressants, beta-blockers, and other antihypertensives. Always tell your pharmacist about every medicine you are taking — including herbal remedies and supplements — before starting Lemsip Max Cold & Flu Lemon.

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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