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Benylin Mucus Cough & Cold All In One Relief – 16 Tablets

Benylin Mucus Cough & Cold All In One Relief – 16 Tablets

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  • ✔️ Relieves mucus cough, congestion, headache and fever simultaneously
  • ✔️ Contains guaifenesin to loosen and thin chest mucus effectively
  • ✔️ Phenylephrine unblocks nasal passages for easier breathing
  • ✔️ Paracetamol reduces cold-related pain and mild fever fast
  • ✔️ Convenient 16-tablet pack suitable for adults and over-12s

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What Are Benylin Mucus Cough and Cold Tablets?

 

When a cold hits, it rarely arrives with just one symptom. You get the blocked nose, the chesty cough, the aching head — all at once. Benylin mucus cough and cold tablets are designed to tackle that combination in a single tablet, which makes them a practical option when you just want to get on with your day. Each pack contains 16 tablets, giving you enough for a full course of short-term cold relief. You can browse our wider range of cold and flu remedies if you need additional support alongside these tablets.

Colds are among the most common illnesses in the UK, with adults typically experiencing two to four per year according to NHS guidance. Symptoms like nasal congestion, a productive cough, and mild fever can make even routine tasks feel exhausting. Having a multi-symptom tablet to hand means fewer products cluttering your medicine cabinet.

 

How Do Benylin Mucus Cough and Cold Tablets Work?

 

These tablets work through three active ingredients, each targeting a different symptom:

  • Guaifenesin 200 mg — an expectorant that helps loosen and thin mucus in the airways, making it easier to cough up and clear.
  • Paracetamol 500 mg — a well-established analgesic and antipyretic that relieves headache, sore throat pain, and reduces fever.
  • Phenylephrine hydrochloride 6.1 mg — a nasal decongestant that works by narrowing the blood vessels in the nasal lining, reducing swelling and congestion.

Together, these three ingredients address the most disruptive cold symptoms simultaneously. Rather than taking separate products for each symptom, one tablet covers the key bases — which is particularly useful when you are at work or on the go.

 

Who Is Suitable for Benylin Mucus Cough and Cold Tablets?

 

These tablets are intended for adults and young people aged 12 and over who are experiencing cold symptoms involving mucus, congestion, and associated discomfort. They are not suitable for everyone, so it is worth checking the criteria below before purchasing.

This product may be appropriate for you if:

  • You are aged 12 or over and experiencing a chesty, mucus-producing cough alongside a cold.
  • You have nasal congestion that is making it difficult to breathe comfortably.
  • You have a mild fever, headache, or sore throat linked to a cold or flu-like illness.
  • You want a convenient, multi-symptom tablet rather than taking several separate remedies.

If you are pregnant, breastfeeding, or managing a long-term health condition such as high blood pressure, diabetes, or thyroid disease, speak to your pharmacist or GP before taking this product. If you also need support with general aches and pains beyond cold symptoms, our pain relief range may offer additional options.

 

How Do Benylin Mucus Cough and Cold Tablets Compare to Similar Products?

 

Feature Benylin Mucus Cough & Cold All In One – 16 Tablets Lemsip Max All In One Capsules
Active ingredients Guaifenesin, Paracetamol, Phenylephrine Guaifenesin, Paracetamol, Phenylephrine
Formulation Tablet (swallowed whole) Capsule (swallowed whole)
Pack size 16 tablets 16 capsules
Suitable age 12 years and over 12 years and over

 

How Should You Store Benylin Mucus Cough and Cold Tablets?

 

Store these tablets below 25°C in a dry place, away from direct sunlight and moisture. Keep them out of the reach and sight of children at all times. Do not use after the expiry date printed on the packaging — if in doubt, return unused tablets to your local pharmacy for safe disposal.

It is worth noting that Benylin mucus cough and cold tablets contain paracetamol. Never store them alongside other paracetamol-containing products in a way that could lead to accidental double-dosing. If you are unsure whether another product you are taking also contains paracetamol, check the label or ask your pharmacist.

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.

Benylin Mucus Cough & Cold All In One Relief – 16 Tablets specifications
Treatment category Cold and flu / Cough relief
Mechanism of action Expectorant, analgesic/antipyretic, nasal decongestant
Effective for Mucus cough, nasal congestion, headache, sore throat, mild fever
Suitable for Adults and children aged 12 and over
Active ingredients Guaifenesin 200 mg, Paracetamol 500 mg, Phenylephrine hydrochloride 6.1 mg
Pack size 16 tablets
UK classification General Sale List (GSL)
Drug class Expectorant / Analgesic / Sympathomimetic decongestant
Preparation Film-coated tablet
Route of administration Oral

Specifications of Benylin Mucus Cough & Cold All In One Relief – 16 Tablets

 

What Is Benylin Mucus Cough and Cold All In One Relief and What Is It Used For?

 

Benylin Mucus Cough & Cold All In One Relief tablets are an over-the-counter medicine used to relieve the symptoms of colds and flu in adults and children aged 12 and over. The product combines three active ingredients — guaifenesin, paracetamol, and phenylephrine hydrochloride — to address mucus build-up, nasal congestion, headache, sore throat, and mild fever simultaneously. It is intended for short-term use only and should not be taken for more than five consecutive days without medical advice.

 

What Do You Need to Know Before Using Benylin Mucus Cough and Cold Tablets?

 

Before taking these tablets, read the following carefully. Some people should not use this product at all, and others may need to take extra care.

Do not take these tablets if you:

  • Are under 12 years of age.
  • Are allergic to paracetamol, guaifenesin, phenylephrine, or any other ingredient in the tablet.
  • Are taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days.
  • Have severe hypertension (high blood pressure) or severe coronary artery disease.
  • Have severe liver or kidney impairment.
  • Are taking other products containing paracetamol — this includes many other cold, flu, and pain relief medicines.

Take care and speak to a pharmacist or GP first if you:

  • Have diabetes, an overactive thyroid (hyperthyroidism), or an enlarged prostate.
  • Are pregnant or breastfeeding.
  • Have glaucoma or difficulty passing urine.
  • Regularly drink alcohol or have a history of liver problems.

Known drug interactions — do not take alongside:

  • Other sympathomimetic decongestants (e.g. pseudoephedrine-containing products).
  • Tricyclic antidepressants or beta-blockers.
  • Anticoagulants such as warfarin (paracetamol may enhance anticoagulant effect with regular use).
  • Other paracetamol-containing medicines — risk of accidental overdose.

 

How Should You Use Benylin Mucus Cough and Cold Tablets?

 

Always follow the dosage instructions on the pack. If you are unsure, ask your pharmacist. These tablets are for oral use — swallow them whole with a glass of water.

  1. Check you are not already taking any other paracetamol-containing product.
  2. Take 2 tablets with a full glass of water.
  3. Leave at least 4 hours between each dose.
  4. Do not take more than 4 doses (8 tablets) in any 24-hour period.
  5. Do not take for more than 5 consecutive days without speaking to a doctor.
Age Group Dose Frequency Maximum daily dose
Adults and children aged 12+ 2 tablets Up to 4 times daily 8 tablets (4,000 mg paracetamol)
Children under 12 Not suitable — do not use

 

What Are the Possible Side Effects of Benylin Mucus Cough and Cold Tablets?

 

Like all medicines, these tablets can cause side effects, although not everyone experiences them. If you notice anything unusual, stop taking the tablets and speak to your pharmacist or GP. You can also find further guidance on managing cold symptoms through our ear, nose and throat range.

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

  • Nausea or stomach upset
  • Headache
  • Dizziness
  • Difficulty sleeping (insomnia)

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

  • Raised blood pressure or palpitations
  • Skin rash or itching
  • Dry mouth
  • Urinary retention (difficulty passing urine), particularly in men with prostate problems

Serious allergic reactions to paracetamol are rare but can occur. Signs include swelling of the face, lips, or throat, difficulty breathing, or a severe skin reaction. If you experience any of these, stop taking the tablets immediately and seek emergency medical help.

 

How Should You Store Benylin Mucus Cough and Cold Tablets?

 

Correct storage helps maintain the effectiveness and safety of this medicine. If you are also managing other health conditions and keeping multiple medicines at home, our first aid range includes useful storage and home health essentials.

  • Store below 25°C in a dry place away from direct heat and sunlight.
  • Keep in the original packaging to protect from moisture.
  • Keep out of the reach and sight 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 tablets 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 Benylin Mucus Cough & Cold tablets online in the UK?

You can order Benylin Mucus Cough & Cold All In One Relief 16 Tablets directly from Cured Pharmacy, a GPhC-registered online pharmacy. Simply add the product to your basket and select your preferred delivery option at checkout. We dispatch quickly so you can start treatment without delay.

How do Benylin Mucus Cough & Cold tablets work in the body?

Each tablet contains three active ingredients working together. Guaifenesin loosens and thins mucus in the airways so it is easier to cough up. Phenylephrine narrows blood vessels in the nasal lining to reduce congestion. Paracetamol relieves associated pain and lowers fever — all in one dose.

How do I take Benylin Mucus Cough & Cold All In One Relief tablets step by step?

Follow these steps for safe use:

  1. Check you are not already taking another paracetamol-containing product.
  2. Take 2 tablets with a full glass of water.
  3. Wait at least 4 hours before taking your next dose.
  4. Do not exceed 8 tablets in any 24-hour period.
What is the maximum daily dose of Benylin Mucus Cough & Cold tablets?

The maximum dose for adults and children aged 12 and over is 8 tablets in any 24-hour period — that is 2 tablets taken up to four times a day. Never exceed this amount, as each tablet contains 500 mg of paracetamol and exceeding the daily limit can cause serious liver damage.

What is the best time to take Benylin Mucus Cough & Cold tablets?

There is no single "best" time — take them when your symptoms are most troublesome, spacing doses at least 4 hours apart. Many people find taking a dose in the morning and one before bed particularly helpful for managing overnight congestion and disrupted sleep caused by coughing.

What are the side effects of Benylin Mucus Cough & Cold tablets?

Common side effects include:

  • Nausea or stomach discomfort
  • Headache or dizziness
  • Difficulty sleeping

Less commonly, you may notice raised blood pressure, palpitations, or a skin rash. Stop taking the tablets and speak to your pharmacist or GP if any side effect concerns you.

How do I manage side effects of Benylin Mucus Cough & Cold tablets?

If you experience nausea, try taking the tablets with a small amount of food or a full glass of water. For dizziness, sit or lie down until it passes and avoid driving. If side effects are persistent or severe, stop taking the tablets and consult your pharmacist or GP promptly.

Who should not take Benylin Mucus Cough & Cold tablets?

These tablets are not suitable for children under 12, people taking MAOIs, or those with severe high blood pressure, severe liver or kidney disease, or hyperthyroidism. Pregnant or breastfeeding women should speak to a GP or pharmacist before use. Always check the full list of contraindications on the pack.

Can I take Benylin Mucus Cough & Cold tablets with other medicines?

Do not take these tablets alongside other paracetamol-containing products, MAOIs, tricyclic antidepressants, or other decongestants. Paracetamol can also interact with warfarin when taken regularly. Always tell your pharmacist about all medicines you are currently taking before starting this product. You can also browse our cold and flu range for alternative options.

Is it safe to take Benylin Mucus Cough & Cold tablets during pregnancy?

You should not take these tablets during pregnancy without first speaking to your GP or midwife. While paracetamol is generally considered the analgesic of choice in pregnancy, the phenylephrine component is not recommended during pregnancy. Your healthcare provider can advise on safer alternatives for managing cold symptoms.

What happens if I miss a dose of Benylin Mucus Cough & Cold tablets?

If you miss a dose, simply take the next one when needed — as long as at least 4 hours have passed since your last dose. Do not double up to compensate for a missed dose. These tablets are taken as needed for symptom relief rather than on a strict schedule.

How long can you take Benylin Mucus Cough & Cold tablets for?

These tablets are intended for short-term use only — no more than 5 consecutive days. If your symptoms have not improved after 5 days, or if they worsen at any point, stop taking the tablets and consult your GP. Prolonged use without medical supervision is not recommended.

What are the alternatives to Benylin Mucus Cough & Cold tablets?

Alternatives include Lemsip Max All In One capsules, which contain the same three active ingredients in capsule form, or separate products targeting individual symptoms such as a standalone decongestant or paracetamol. You can explore our full ear, nose and throat range for other options suited to your specific symptoms.

Are Benylin Mucus Cough & Cold tablets suitable for children?

These tablets are suitable for children aged 12 and over at the same adult dose. They are not suitable for children under 12 years of age. If your child is under 12 and experiencing cold symptoms, speak to your pharmacist about age-appropriate alternatives — our baby and toddler range includes products designed for younger children.

What are the latest findings on guaifenesin as a cough expectorant?

Guaifenesin has been used as an expectorant for decades and remains one of the most widely used OTC cough ingredients in the UK and internationally. Current evidence supports its use for loosening mucus and making coughs more productive, though researchers continue to study optimal dosing. It is considered safe and well-tolerated at recommended doses for short-term use.

How Should You Use Benylin Mucus Cough & Cold All In One Relief Tablets?

These tablets are taken orally — swallow them whole with a full glass of water. Do not crush or chew them. Before taking your first dose, always check that you are not already using another product containing paracetamol, as combining them can lead to accidental overdose.

Follow these steps each time you take a dose:

What Is the Correct Dose of Benylin Mucus Cough & Cold All In One Relief Tablets?

The correct dose depends on age. These tablets are not suitable for children under 12 years of age under any circumstances. For everyone aged 12 and over, the dose is the same — 2 tablets per dose, up to four times daily.

When Is the Best Time to Use Benylin Mucus Cough & Cold All In One Relief Tablets?

Take a dose when your symptoms are at their most disruptive — many people find this is first thing in the morning when congestion tends to be worst, and again before bed to help manage overnight coughing. Because the tablets contain phenylephrine, which can occasionally cause mild insomnia in sensitive individuals, try to take your last dose of the day at least a couple of hours before you plan to sleep.

There is no requirement to take these tablets with food, but if you find they cause mild stomach discomfort, taking them with a light snack can help.

How Long Can You Use Benylin Mucus Cough & Cold All In One Relief Tablets For?

These tablets are designed for short-term use only. Do not take them for more than 5 consecutive days without speaking to a doctor or pharmacist. Most cold symptoms begin to improve within a few days; if yours are not improving — or are getting worse — after 5 days, it is important to seek medical advice as there may be an underlying cause that needs attention.

Long-term or repeated use without medical supervision is not appropriate for this product. If you find yourself reaching for cold relief tablets frequently, speak to your GP about whether there is an underlying condition contributing to your symptoms.

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 Benylin Mucus Cough & Cold All In One Relief Tablets?

Most people tolerate these tablets well when taken as directed, but side effects can occur. The most commonly reported ones are generally mild and tend to resolve on their own once you stop taking the medicine.

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

What Are the Less Common Side Effects of Benylin Mucus Cough & Cold All In One Relief Tablets?

Less commonly, some people may experience side effects related to the phenylephrine component, which acts on the cardiovascular system as well as the nasal passages. These are more likely in people who are sensitive to sympathomimetic medicines or who have underlying cardiovascular conditions.

  • Raised blood pressure (hypertension)
  • Heart palpitations or a faster heartbeat
  • Skin rash or itching
  • Urinary retention — particularly in men with an enlarged prostate
  • Restlessness or anxiety

What Are the Serious Side Effects of Benylin Mucus Cough & Cold All In One Relief Tablets?

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, which may not be immediately apparent. Symptoms of overdose include nausea, vomiting, and abdominal pain; seek emergency help straight away if you suspect you have taken too much.

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

What Should You Do If You Experience Side Effects of Benylin Mucus Cough & Cold All In One Relief Tablets?

For mild side effects such as nausea, try taking the tablets with a small amount of food or a full glass of water. If dizziness occurs, sit or lie down until it passes and avoid driving or operating machinery. For any side effect that is persistent, worsening, or causing you concern, stop taking the tablets 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 improve medicine safety for everyone.

Can Benylin Mucus Cough & Cold All In One Relief Tablets Interact With Other Medicines?

Yes — interactions are possible and some are clinically significant. Do not take these tablets alongside MAOIs or within 14 days of stopping them, as this combination can cause a dangerous rise in blood pressure. Avoid taking with other sympathomimetic decongestants, tricyclic antidepressants, or beta-blockers. Regular use of paracetamol alongside warfarin may enhance the anticoagulant effect, increasing bleeding risk. Always tell your pharmacist about every medicine, supplement, or herbal remedy you are taking before starting this product.

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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