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Benylin Infant Cough Syrup - 125ml

Benylin Infant Cough Syrup - 125ml

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  • ✔️ Soothes dry and tickly coughs in babies from 3 months
  • ✔️ Glycerol formula coats and calms irritated throat tissue
  • ✔️ Alcohol-free and antihistamine-free for infant safety
  • ✔️ Suitable for babies aged 3 months to 5 years
  • ✔️ 125ml bottle provides multiple doses per pack

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Is Benylin Infant Cough Syrup Right for Your Baby?

 

When your little one develops a dry or tickly cough, it can be distressing for the whole family. Benylin infant cough syrup is a gentle, glycerol-based oral liquid specifically formulated for babies and young children aged 3 months and over. It's one of the most recognised infant cough remedies available over the counter in the UK, and at just £4.09 for a 125ml bottle, it's an accessible option for parents looking for fast, gentle relief. You can browse our full range of baby and toddler health products at Cured Pharmacy.

Coughs in infants are extremely 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. However, soothing the throat can help your child feel more comfortable while their immune system does its work.

 

How Does Benylin Infant Cough Syrup Work to Soothe a Cough?

 

The active ingredient in this syrup is glycerol (also known as glycerin). Unlike some adult cough medicines, it contains no antihistamines, decongestants, or alcohol — which is exactly why it's considered appropriate for very young children. Here's how it works:

  • Glycerol coats the lining of the throat, forming a soothing barrier over irritated tissue.
  • This barrier helps reduce the tickling sensation that triggers a dry cough reflex.
  • The demulcent (soothing) action provides symptomatic relief without suppressing the cough reflex entirely.
  • Because it's free from sedating ingredients, it won't cause drowsiness in your baby.

It's worth noting that this product treats the symptom — the cough — rather than the underlying cause. If your child has a persistent cough lasting more than five days, or develops a fever, difficulty breathing, or seems unwell in other ways, always seek medical advice promptly.

 

Who Is Benylin Infant Cough Syrup Suitable For?

 

This syrup is designed for a specific age group and type of cough. It's not a one-size-fits-all remedy, so it's important to check suitability before use. It is appropriate for:

  • Babies aged 3 months and over
  • Young children with a dry, tickly, or irritating cough
  • Children who need a medicine free from antihistamines and decongestants
  • Parents seeking an alcohol-free, colour-free cough syrup for their infant

It is not suitable for infants under 3 months of age. If your child has a chesty, productive cough (one that brings up mucus), this product may not be the most appropriate choice — speak to your pharmacist for guidance.

 

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

 

Feature Benylin Infant Cough Syrup Tixylix Baby Syrup
Active ingredient Glycerol Glycerol
Suitable age 3 months and over 3 months and over
Alcohol-free Yes Yes
Contains antihistamine No No
Pack size 125ml 100ml

 

How Should You Store Benylin Infant Cough Syrup and Check It's Still Safe to Use?

 

Store this product below 25°C, away from direct sunlight and heat sources. Do not refrigerate. Always keep the bottle tightly closed and out of the reach and sight of children. Check the expiry date printed on the bottle before each use — do not use the product after this date, even if the syrup looks and smells normal.

If you're stocking up on medicines for the household, our cold and flu collection includes a wide range of remedies for the whole family. Benylin infant cough syrup is a practical addition to any family medicine cabinet during the winter months.

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 Infant Cough Syrup 125ml specifications
Treatment category Cough relief (dry and tickly cough)
Mechanism of action Demulcent — glycerol coats and soothes the throat lining
Effective for Dry, tickly, and irritating coughs in infants and young children
Suitable for Babies and children aged 3 months and over
Active ingredient Glycerol
Pack size 125ml
UK classification General Sale List (GSL)
Drug class Demulcent cough preparation
Preparation Oral liquid (syrup)
Route of administration Oral

Specifications of Benylin Infant Cough Syrup 125ml

 

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

 

Benylin Infant Cough Syrup is an over-the-counter oral liquid medicine used to relieve dry and tickly coughs in babies and young children aged 3 months and over. Its active ingredient, glycerol, acts as a demulcent — meaning it soothes and coats the throat to ease irritation. It does not contain antihistamines, decongestants, or alcohol, making it one of the gentler options available for very young children. The NHS advises that most childhood coughs are caused by viral infections and will clear up without treatment, but soothing remedies can help keep your child comfortable in the meantime.

 

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

 

Before giving this syrup to your child, read the following carefully. There are certain situations where this product should not be used or where extra caution is needed.

Do not use if your child:

  • Is under 3 months of age
  • Is allergic to glycerol or any other ingredient in the product
  • Has a chesty, productive cough (bringing up mucus or phlegm)
  • Has difficulty breathing, wheezing, or a persistent high fever

Use with caution and seek advice if your child:

  • Has asthma or any chronic respiratory condition
  • Has a cough that has lasted more than 5 days without improvement
  • Is already taking other medicines, including herbal remedies

Known drug interactions:

  • No clinically significant drug interactions are currently known for glycerol-based cough syrups at the doses used in this product.
  • Always inform your pharmacist of all medicines your child is taking before starting any new treatment.

 

How Should You Use Benylin Infant Cough Syrup Correctly?

 

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

  1. Shake the bottle gently before each use.
  2. Use the measuring spoon or oral syringe provided to measure the correct dose.
  3. Give the syrup directly into your child's mouth.
  4. Do not mix with food or drink.
  5. Replace the cap securely after each use.
Age Group Dose Frequency Maximum daily doses
3 months to under 1 year 2.5ml Up to 4 times daily 4
1 year to under 5 years 5ml Up to 4 times daily 4

Do not give more than 4 doses in any 24-hour period. If your child's cough does not improve within 5 days, stop use and consult your GP or pharmacist. You can also find additional support products in our ear, nose and throat collection for related symptoms.

 

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

 

Like all medicines, Benylin Infant Cough Syrup can cause side effects, although not everyone will experience them. Glycerol is generally very well tolerated in children at the doses used in this product.

Common side effects:

  • Mild nausea
  • Stomach discomfort or bloating

Less common side effects:

  • Headache
  • Diarrhoea (at higher doses)
  • Allergic skin reactions such as rash or itching — stop use immediately if this occurs

If your child experiences any serious reaction — including difficulty breathing, swelling of the face or throat, or a severe rash — seek emergency medical attention immediately. These may be signs of a rare allergic reaction (anaphylaxis). The NHS provides clear guidance on recognising and responding to allergic reactions in children.

 

How Should You Store Benylin Infant Cough Syrup Safely?

 

Correct storage helps maintain the product's safety and effectiveness. Follow these instructions carefully:

  • Store below 25°C in a cool, dry place.
  • Do not refrigerate or freeze.
  • 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.

If you're building a family medicine cabinet, our first aid collection has everything you need to be prepared for common childhood ailments.

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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 Infant Cough Syrup online in the UK?

You can buy Benylin Infant Cough Syrup 125ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £4.09. No prescription is needed as it is a General Sale List (GSL) medicine. Browse our full baby and toddler range for more infant health products.

How does Benylin Infant Cough Syrup work in the body?

The active ingredient, glycerol, works as a demulcent — it coats the lining of the throat and forms a soothing layer over irritated tissue. This reduces the tickling sensation that triggers a dry cough reflex in babies and young children. It does not suppress the cough reflex entirely, which means it won't interfere with your child's natural ability to clear their airways.

How do I give Benylin Infant Cough Syrup to my baby step by step?

Shake the bottle gently, then use the measuring device provided to draw up the correct dose for your child's age. Give the syrup directly into your child's mouth — do not mix it with food or drink. Replace the cap tightly after each use and store the bottle below 25°C.

What is the correct dose of Benylin Infant Cough Syrup for my child's age?

For babies aged 3 months to under 1 year, the dose is 2.5ml up to four times daily. For children aged 1 year to under 5 years, the dose is 5ml up to four times daily. Never exceed four doses in any 24-hour period, and always use the measuring device supplied.

What is the best time to give Benylin Infant Cough Syrup?

There is no single "best" time — you can give the syrup whenever your child's cough is causing discomfort, up to four times a day. Many parents find it helpful to give a dose before bedtime if the cough is disturbing their child's sleep. Space doses evenly throughout the day where possible.

What are the side effects of Benylin Infant Cough Syrup?

Side effects are uncommon but may include mild nausea, stomach discomfort, or in rare cases a skin rash. If your child develops any signs of an allergic reaction — such as swelling, difficulty breathing, or a severe rash — stop use immediately and seek emergency medical help. Always report any unexpected reactions to your pharmacist or GP.

How do I manage side effects of Benylin Infant Cough Syrup?

Mild stomach discomfort can sometimes be reduced by giving the syrup after a small feed rather than on an empty stomach. If side effects persist or concern you, stop using the product and speak to your pharmacist or GP. Do not give additional doses to compensate for a missed one.

Who is eligible to use Benylin Infant Cough Syrup?

This syrup is suitable for babies and children aged 3 months and over who have a dry or tickly cough. It is not suitable for infants under 3 months, or for children with a chesty, productive cough. If your child has asthma, a chronic respiratory condition, or is taking other medicines, consult your pharmacist before use.

What happens if I give my baby too much Benylin Infant Cough Syrup?

If you accidentally give more than the recommended dose, contact NHS 111 or your nearest A&E for advice. Take the bottle with you so healthcare professionals can see exactly what was given and how much. Do not wait for symptoms to appear before seeking help.

What happens if I miss a dose of Benylin Infant Cough Syrup?

If you miss a dose, simply give the next dose when your child needs it — do not double up to make up for the missed one. This product is used as needed for symptom relief rather than on a strict schedule, so missing a dose is not usually a concern. Never exceed four doses in 24 hours.

Can I give Benylin Infant Cough Syrup alongside other medicines?

No significant drug interactions are known for glycerol at the doses used in this product. However, always check with your pharmacist before giving your child any additional medicines, including infant paracetamol or ibuprofen. You can find a range of related products in our cold and flu collection.

How long can I use Benylin Infant Cough Syrup for?

Do not use this product for more than 5 consecutive days without seeking medical advice. If your child's cough persists beyond 5 days, worsens, or is accompanied by fever or difficulty breathing, consult your GP. Most viral coughs in children resolve within 2–3 weeks according to NHS guidance.

What are the alternatives to Benylin Infant Cough Syrup?

A comparable alternative is Tixylix Baby Syrup, which also contains glycerol and is suitable from 3 months. Honey (for children over 1 year) and warm water with lemon are NHS-recommended home remedies for soothing a cough. Always check with your pharmacist before switching products.

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

Benylin Infant Cough Syrup is alcohol-free, which is an important consideration for infant medicines. For specific information about sugar content and other excipients, check the product label or patient information leaflet, or ask your pharmacist before use.

What does the latest research say about glycerol cough syrups for infants?

The NHS and MHRA advise that over-the-counter cough medicines containing antihistamines or decongestants should not be given to children under 6 years, which is why glycerol-based demulcent syrups like this one are considered a safer option for younger children. Glycerol's soothing mechanism is well established, though evidence for its clinical efficacy over simple honey-and-lemon remedies (in children over 1 year) remains limited. Always follow current NHS guidance when choosing a cough remedy for your child.

How Should You Use Benylin Infant Cough Syrup?

Always read the label before giving this medicine to your child. Use only the measuring device supplied with the bottle — a household teaspoon is not accurate enough and could result in your child receiving too much or too little. Give the syrup directly into your child's mouth and do not mix it with food or drink, as this may affect how well it works.

Follow these steps each time you give a dose:

What Is the Correct Dose of Benylin Infant Cough Syrup?

Dosing is based on your child's age. Never exceed the maximum number of doses in a 24-hour period. If you are unsure which dose applies to your child, ask your pharmacist before use.

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

You can give this syrup whenever your child's cough is causing them discomfort, up to four times a day. Many parents find it particularly helpful to give a dose before bedtime, as coughing can disrupt sleep for both the child and the rest of the family. Try to space doses evenly throughout the day — for example, morning, midday, late afternoon, and bedtime — to maintain consistent symptom relief.

There is no requirement to give the syrup with food, but if your child experiences any mild stomach discomfort, giving it after a small feed may help.

How Long Can You Use Benylin Infant Cough Syrup For?

Do not use this product for more than 5 consecutive days without seeking medical advice. Most viral coughs in young children will begin to improve within a few days, but if your child's cough persists beyond 5 days, worsens, or is accompanied by a high fever, difficulty breathing, or wheezing, stop use and consult your GP promptly.

This product is intended for short-term symptomatic relief only. It is not a treatment for the underlying cause of the cough. If your child's symptoms keep returning, speak to your GP to rule out any 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 Benylin Infant Cough Syrup?

Benylin Infant Cough Syrup is generally very well tolerated in babies and young children when used as directed. 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 nausea
  • Stomach discomfort or bloating
  • Loose stools or mild diarrhoea (particularly if more than the recommended dose is given)

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

Less common reactions are rare but can occur. If your child develops any of the following, stop using the product and speak to your pharmacist or GP as soon as possible.

  • Skin rash or redness
  • Itching or hives
  • Headache
  • Unusual irritability or restlessness after taking the syrup

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

Serious side effects are very rare with this product. However, a small number of children may experience a severe allergic reaction (anaphylaxis). This is a medical emergency. Signs to watch for include sudden swelling of the face, lips, or throat, difficulty breathing, a rapid or weak pulse, or a sudden drop in alertness. If you notice any of these signs after giving this syrup, call 999 immediately and do not give any further doses.

The NHS advises that any suspected allergic reaction to a medicine should be reported to a healthcare professional, even if the reaction appears mild at first.

What Should You Do If Your Child Experiences Side Effects?

For mild side effects such as nausea or stomach discomfort, try giving the next dose after a small feed rather than on an empty stomach. If side effects persist or you are concerned, stop using the product and contact your pharmacist or GP for advice. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Never give an extra dose to compensate for a missed one, and do not exceed the maximum recommended daily dose in an attempt to improve symptom relief.

Can Benylin Infant Cough Syrup Interact With Other Medicines?

No clinically significant drug interactions are currently known for glycerol at the doses used in this product. However, if your child is taking any other medicines — including infant paracetamol, ibuprofen, or any prescribed medication — always inform your pharmacist before starting this syrup. This is especially important if your child has any underlying health conditions or is under the care of a specialist. Your pharmacist can check for any potential interactions and advise you on the safest approach.

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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