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Benylin Infants Cough Syrup - 125ml

Benylin Infants Cough Syrup - 125ml

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  • ✔️ Soothes dry, tickly coughs in babies from 3 months
  • ✔️ Glycerol demulcent coats and calms irritated throat lining
  • ✔️ Sugar-free and alcohol-free formula for young children
  • ✔️ Suitable for babies and toddlers aged 3 months to 5 years
  • ✔️ 125ml bottle provides multiple doses per pack

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Is Benylin Infants Cough Syrup Right for Your Baby?

 

When your little one is struggling with a persistent dry cough, it can be distressing for the whole family. Benylin infants cough syrup is a well-known, glycerol-based oral liquid designed specifically for babies and young children aged 3 months and over. Available in a 125ml bottle for just £4.09, it offers a gentle, sugar-free option to help soothe throat irritation without the use of antihistamines or decongestants. If you're looking for other products to support your child's health, our baby and toddler collection has a range of trusted remedies.

Coughs in infants are incredibly common, particularly during the colder months. The NHS notes that most coughs in children are caused by viral upper respiratory tract infections and will resolve on their own. That said, a soothing syrup can make your baby more comfortable while their immune system does its work.

 

How Does Benylin Infants Cough Syrup Work?

 

The active ingredient in this syrup is glycerol (also called glycerin). Glycerol is a demulcent — meaning it forms a soothing, protective coating over the mucous membranes lining the throat. This helps to reduce the irritation that triggers a dry, tickly cough. It doesn't suppress the cough reflex entirely, which is actually important in infants, as coughing helps clear the airways.

  • Glycerol coats the throat lining to reduce irritation
  • Provides a demulcent (soothing) effect on inflamed mucous membranes
  • Does not contain antihistamines, decongestants, or codeine
  • Sugar-free formulation — suitable for babies with dietary considerations
  • Alcohol-free and colour-free

 

Who Should Use Benylin Infants Cough Syrup?

 

This syrup is intended for infants and young children. It is not suitable for adults or older children, and there are specific age restrictions you must follow. Always read the label carefully before giving any medicine to a child.

  • Babies aged 3 months to 1 year (with appropriate dosing)
  • Toddlers and young children aged 1 to 5 years
  • Children with a dry, tickly, or irritating cough
  • Children where a sugar-free, alcohol-free formula is preferred

It is not suitable for infants under 3 months of age. If your child has a persistent cough lasting more than 5 days, a high temperature, difficulty breathing, or you are concerned for any reason, seek medical advice promptly.

 

How Does Benylin Infants Cough Syrup Compare to Other Infant Cough Remedies?

 

Feature Benylin Infants Cough Syrup Tixylix Baby Syrup
Active ingredient Glycerol Glycerol
Suitable age 3 months – 5 years 3 months – 5 years
Sugar-free Yes Yes
Alcohol-free Yes Yes
Pack size 125ml 100ml

 

How Should You Store Benylin Infants Cough Syrup?

 

Store this product below 25°C in a dry place, away from direct sunlight. Do not refrigerate. Once opened, use within the period stated on the packaging. Always keep medicines out of the sight and reach of children — even medicines intended for children can be harmful if taken in excess.

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 Infants Cough Syrup 125ml specifications
Treatment category Children's cough remedy
Mechanism of action Demulcent — glycerol coats and soothes the throat lining
Effective for Dry, tickly coughs in infants and young children
Suitable for Children aged 3 months to 5 years
Active ingredient Glycerol
Pack size 125ml
UK classification General Sale List (GSL)
Drug class Demulcent
Preparation Oral liquid (syrup)
Route of administration Oral

Specifications of Benylin Infants Cough Syrup 125ml

 

What Is Benylin Infants Cough Syrup and What Is It Used For?

 

Benylin Infants Cough Syrup is an over-the-counter oral liquid medicine used to relieve dry, tickly coughs in babies and young children aged 3 months to 5 years. Its active ingredient, glycerol, acts as a demulcent — it soothes the throat by forming a protective coating over irritated mucous membranes. It does not contain antihistamines, decongestants, or any ingredient that suppresses the cough reflex, making it one of the few cough preparations considered appropriate for very young children. The NHS advises that most childhood coughs are caused by viral infections and do not require antibiotics, but a soothing syrup can help ease discomfort in the meantime.

 

What Do You Need to Know Before Using Benylin Infants Cough Syrup?

 

Before giving this syrup to your child, read the following contraindications and warnings carefully:

  • Do not use in infants under 3 months of age
  • Do not use if your child is allergic to glycerol or any other ingredient in the formulation
  • Do not use for more than 5 days without seeking medical advice
  • Consult a GP if your child has a high temperature, difficulty breathing, a barking cough (which may indicate croup), or a cough that produces coloured mucus
  • Seek immediate medical attention if your child has any signs of a severe allergic reaction, such as swelling of the face or difficulty swallowing

Drug interactions with glycerol-based cough syrups are not commonly reported. However:

  • Always inform your pharmacist of any other medicines your child is taking
  • Do not give alongside other cough or cold preparations without pharmacist advice, as this may lead to duplication of ingredients

 

How Should You Use Benylin Infants Cough Syrup?

 

Always follow the dosage instructions on the label or as directed by your pharmacist. Use the measuring device provided — never use a household teaspoon, as this can lead to inaccurate dosing.

  1. Shake the bottle gently before use
  2. Measure the correct dose using the oral syringe or measuring spoon provided
  3. Give the syrup directly into your child's mouth or mix with a small amount of cool, boiled water if preferred
  4. Administer up to 4 times in 24 hours, leaving at least 4 hours between doses
  5. Do not give more than 4 doses in any 24-hour period
Age Group Dose Frequency Maximum daily doses
3 months – 1 year 2.5ml Up to 4 times daily 4
1 year – 5 years 5ml Up to 4 times daily 4

If you're also managing other symptoms in your child, our cold and flu collection includes a range of age-appropriate remedies to help your family through the season.

 

What Are the Possible Side Effects of Benylin Infants Cough Syrup?

 

Benylin Infants Cough Syrup is generally very well tolerated in young children. Glycerol is considered safe at the doses used in this product. That said, as with any medicine, side effects are possible, even if they are uncommon.

Common side effects:

  • Mild stomach upset
  • Loose stools or diarrhoea (particularly if large amounts are ingested)

Less common side effects:

  • Nausea
  • Headache
  • Skin rash or itching (possible sign of allergic reaction — stop use immediately)

If your child experiences any serious or unexpected reaction, stop giving the syrup and contact your GP or call NHS 111 immediately. For children with ear, nose, or throat symptoms alongside their cough, you may also find our ear, nose and throat range helpful.

 

How Should You Store Benylin Infants Cough Syrup?

 

  • Store below 25°C in a cool, dry place
  • Do not refrigerate or freeze
  • Keep away from direct sunlight and heat sources
  • Keep the bottle tightly closed when not in use
  • Keep out of the sight and reach of children at all times
  • Do not use after the expiry date printed on the label
  • Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacist for safe disposal

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 Infants Cough Syrup online in the UK?

You can buy Benylin Infants Cough Syrup 125ml online from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £4.09 with fast delivery to your door. It is a General Sale List (GSL) medicine, so no prescription is needed. It is also available from most high street pharmacies and supermarkets across the UK.

How does Benylin Infants Cough Syrup work in the body?

The active ingredient, glycerol, works as a demulcent — it coats the lining of the throat and upper airways, forming a soothing protective layer that reduces the irritation responsible for a dry, tickly cough. It does not suppress the cough reflex, which is important in young children as coughing helps keep the airways clear. The effect is localised to the throat and does not involve systemic absorption in significant amounts.

What age can babies start taking Benylin Infants Cough Syrup?

Benylin Infants Cough Syrup is suitable for babies aged 3 months and over. It must not be given to infants younger than 3 months under any circumstances. If your baby is under 3 months and has a cough, you should contact your GP or call NHS 111 for advice rather than using any over-the-counter remedy.

How do I give Benylin Infants Cough Syrup step by step?

Shake the bottle gently before each use, then measure the correct dose using the oral syringe or measuring spoon provided — never use a household teaspoon. Administer the syrup directly into your child's mouth, and give up to 4 times in 24 hours with at least 4 hours between each dose. Always replace the cap securely after use and store the bottle safely out of your child's reach.

What is the correct dose of Benylin Infants Cough Syrup for my child?

For babies aged 3 months to 1 year, the recommended dose is 2.5ml up to 4 times daily. For children aged 1 to 5 years, the dose increases to 5ml up to 4 times daily. Do not exceed 4 doses in any 24-hour period, and do not give this syrup to children over 5 years — a different formulation would be more appropriate for older children.

Are there any side effects of Benylin Infants Cough Syrup I should know about?

Benylin Infants Cough Syrup is generally very well tolerated, and serious side effects are rare. Some children may experience mild stomach upset, loose stools, or nausea, particularly if more than the recommended dose is given. In very rare cases, an allergic reaction such as a skin rash or facial swelling may occur — if this happens, stop use immediately and seek medical attention.

Who is eligible to use Benylin Infants Cough Syrup?

This syrup is suitable for babies and young children aged 3 months to 5 years who have a dry, tickly, or irritating cough. It is not suitable for infants under 3 months, children over 5 years, or anyone with a known allergy to glycerol or any other ingredient in the formulation. If your child has an underlying health condition, always check with your pharmacist or GP before use. You can also browse our baby and toddler range for other age-appropriate health products.

What happens if I accidentally give my child too much Benylin Infants Cough Syrup?

If you think your child has been given more than the recommended dose, contact NHS 111 or take them to your nearest A&E department immediately — even if they seem well. Take the medicine bottle with you so healthcare professionals can see exactly what was given and how much. Glycerol is generally considered low-risk in small overdoses, but it is always better to seek professional advice promptly.

Can I give Benylin Infants Cough Syrup alongside paracetamol or ibuprofen?

No significant interactions between glycerol-based cough syrups and children's paracetamol or ibuprofen are currently known. However, always check with your pharmacist before combining any medicines, and ensure you are using age-appropriate formulations of each product. Never give ibuprofen to babies under 3 months or to children who are dehydrated or vomiting.

How long can I use Benylin Infants Cough Syrup for?

You should not use Benylin Infants Cough Syrup for more than 5 consecutive days without seeking medical advice. If your child's cough persists beyond 5 days, worsens, or is accompanied by a high temperature, difficulty breathing, or other concerning symptoms, consult your GP. Most viral coughs in children resolve within 2 to 3 weeks, but a healthcare professional should assess any cough that lingers.

What are the alternatives to Benylin Infants Cough Syrup?

The main alternative is Tixylix Baby Syrup, which also contains glycerol and is suitable for the same age group. The NHS also recommends warm water with a small amount of honey as a home remedy for children over 1 year — honey should never be given to babies under 12 months due to the risk of infant botulism. For a broader range of cough and cold products, visit our cold and flu collection.

Is Benylin Infants Cough Syrup sugar-free and alcohol-free?

Yes, Benylin Infants Cough Syrup is both sugar-free and alcohol-free, making it suitable for babies and toddlers where these considerations are important. It is also free from artificial colours. Always check the full ingredient list on the packaging if your child has any known allergies or dietary requirements.

Does Benylin Infants Cough Syrup need a prescription in the UK?

No, Benylin Infants Cough Syrup is classified as a General Sale List (GSL) medicine in the UK, which means it can be purchased without a prescription from pharmacies, supermarkets, and registered online pharmacies like Cured Pharmacy. Despite being available without a prescription, it is still a medicine and should be used strictly according to the label instructions.

What are the latest guidelines on cough medicines for children in the UK?

The NHS and MHRA advise that most over-the-counter cough and cold medicines containing antihistamines, decongestants, or cough suppressants should not be given to children under 6 years. Glycerol-based demulcent syrups like Benylin Infants Cough Syrup are among the few preparations considered appropriate for very young children, as glycerol simply soothes the throat rather than acting on the central nervous system. Always follow current NHS guidance and consult a pharmacist if you are unsure.

Can Benylin Infants Cough Syrup be used for a wet or chesty cough?

Benylin Infants Cough Syrup is specifically designed to relieve dry, tickly coughs rather than wet or chesty coughs that produce mucus. If your child has a chesty cough with significant mucus production, speak to your pharmacist or GP, as a different approach may be more appropriate. Using a dry cough remedy for a productive cough is unlikely to be harmful, but it may not provide the relief you are hoping for. You can also explore our ear, nose and throat range for related products.

How Should You Use Benylin Infants Cough Syrup?

Benylin Infants Cough Syrup is given by mouth. Always use the measuring device supplied with the pack — a household teaspoon is not accurate enough and could result in your child receiving the wrong dose. Shake the bottle gently before each use to ensure the syrup is evenly mixed.

What Is the Correct Dose of Benylin Infants Cough Syrup?

The dose depends on your child's age. Never exceed the maximum number of doses in a 24-hour period, and do not give this product to children over 5 years of age without specific medical advice. If you are unsure about the correct dose, ask your pharmacist before giving the medicine.

When Is the Best Time to Use Benylin Infants Cough Syrup?

You can give Benylin Infants Cough Syrup at any time of day, including before bedtime if your child's cough is disturbing their sleep. Space doses evenly throughout the day, leaving at least 4 hours between each one. There is no requirement to give it with food, though doing so may help if your child experiences any mild stomach discomfort.

If your child's cough is worse at night, giving a dose shortly before bedtime can help them settle more comfortably. Always plan your doses so you do not exceed 4 in any 24-hour period.

How Long Can You Use Benylin Infants Cough Syrup For?

This syrup should not be used for more than 5 consecutive days without seeking medical advice. Most viral coughs in young children improve within this timeframe as the immune system clears the infection. If your child's cough persists beyond 5 days, is getting worse rather than better, or is accompanied by a high temperature, difficulty breathing, or any other worrying symptom, stop using the syrup and consult your GP or call NHS 111.

Long-term use of this product is not recommended without medical supervision. It is intended as a short-term measure to ease discomfort while your child recovers from a viral illness.

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

How Should You Use Benylin Infants Cough Syrup?

Benylin Infants Cough Syrup is given by mouth. Always use the measuring device supplied with the pack — a household teaspoon is not accurate enough and could result in your child receiving the wrong dose. Shake the bottle gently before each use to ensure the syrup is evenly mixed.

What Is the Correct Dose of Benylin Infants Cough Syrup?

The dose depends on your child's age. Never exceed the maximum number of doses in a 24-hour period, and do not give this product to children over 5 years of age without specific medical advice. If you are unsure about the correct dose, ask your pharmacist before giving the medicine.

When Is the Best Time to Use Benylin Infants Cough Syrup?

You can give Benylin Infants Cough Syrup at any time of day, including before bedtime if your child's cough is disturbing their sleep. Space doses evenly throughout the day, leaving at least 4 hours between each one. There is no requirement to give it with food, though doing so may help if your child experiences any mild stomach discomfort.

If your child's cough is worse at night, giving a dose shortly before bedtime can help them settle more comfortably. Always plan your doses so you do not exceed 4 in any 24-hour period.

How Long Can You Use Benylin Infants Cough Syrup For?

This syrup should not be used for more than 5 consecutive days without seeking medical advice. Most viral coughs in young children improve within this timeframe as the immune system clears the infection. If your child's cough persists beyond 5 days, is getting worse rather than better, or is accompanied by a high temperature, difficulty breathing, or any other worrying symptom, stop using the syrup and consult your GP or call NHS 111.

Long-term use of this product is not recommended without medical supervision. It is intended as a short-term measure to ease discomfort while your child recovers from a viral illness.

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

What Are the Most Common Side Effects of Benylin Infants Cough Syrup?

Benylin Infants Cough Syrup is generally very well tolerated in babies and young children. Glycerol, the active ingredient, has a well-established safety profile at the doses used in this product. That said, as with any medicine, some children may experience mild side effects.

  • Mild stomach upset or abdominal discomfort
  • Loose stools or diarrhoea (more likely if the dose is exceeded)
  • Nausea

What Are the Less Common Side Effects of Benylin Infants Cough Syrup?

Less common side effects are rare but have been reported with glycerol-containing preparations. If your child experiences any of the following, stop giving the syrup and seek advice from your pharmacist or GP.

  • Headache
  • Dizziness (unlikely at standard doses but possible if excess is ingested)
  • Skin rash or itching
  • Increased thirst

What Are the Serious Side Effects of Benylin Infants Cough Syrup?

Serious side effects are very uncommon with this product when used as directed. However, signs of a severe allergic reaction (anaphylaxis) require immediate medical attention. Stop use straight away and call 999 or go to your nearest A&E if your child develops any of the following:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Sudden skin rash with hives or widespread redness
  • Collapse or loss of consciousness

What Should You Do If Your Child Experiences Side Effects?

For mild side effects such as stomach upset, you can usually manage these by ensuring the correct dose has been given and that the syrup is not being administered on an empty stomach. If symptoms are persistent or you are concerned, stop using the product and speak to your pharmacist. For any serious reaction, seek emergency medical help immediately. You can also report suspected side effects to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Benylin Infants Cough Syrup Interact With Other Medicines?

No clinically significant drug interactions with glycerol-based cough syrups are currently documented. However, you should always tell your pharmacist about any other medicines your child is taking — including vitamins, supplements, and herbal remedies — before starting a new product. Avoid giving more than one cough or cold preparation at the same time without pharmacist guidance, as this could lead to unintentional duplication of ingredients or doses.

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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