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Buttercup Bronchostop Cough Syrup - 200ml

Buttercup Bronchostop Cough Syrup - 200ml

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  • ✔️ Relieves both dry and chesty coughs in one formula
  • ✔️ Contains dextromethorphan to suppress the cough reflex centrally
  • ✔️ Guaifenesin loosens mucus for easier airway clearance
  • ✔️ Suitable for adults and young people aged 12 and over
  • ✔️ 200ml bottle provides multiple doses for extended relief

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What Is Buttercup Bronchostop Cough Syrup?

 

A cough that just won't quit can be exhausting — whether it's keeping you up at night or making every conversation uncomfortable. Buttercup Bronchostop cough syrup is an over-the-counter oral liquid designed to tackle both dry, tickly coughs and chesty, productive coughs. That dual-action approach is what sets it apart from single-purpose cough remedies. It comes in a 200ml bottle, making it a practical option to keep at home during the colder months. You can browse our full range of cold and flu remedies if you're looking for additional support alongside this syrup.

Coughs are one of the most common reasons people visit a pharmacist in the UK. The NHS notes that most coughs caused by colds or minor upper respiratory tract infections will clear up on their own within three weeks, but that doesn't make them any less disruptive in the meantime. Having a reliable remedy to hand can make a real difference to your day-to-day comfort.

 

How Does Buttercup Bronchostop Cough Syrup Work?

 

This syrup works through two complementary mechanisms, which is why it can address more than one type of cough at the same time. Here's how each active ingredient contributes:

  • Dextromethorphan hydrobromide — acts centrally on the cough centre in the brain to suppress the urge to cough, making it particularly useful for dry, irritating, or tickly coughs where there's little or no mucus to clear.
  • Guaifenesin — works as an expectorant by increasing the water content of mucus in the airways, thinning it so it becomes easier to cough up. This is the ingredient that helps with chesty, productive coughs.

Together, these two ingredients address the full spectrum of common cough types. The syrup is taken orally and absorbed through the gastrointestinal tract, with effects typically felt within 30 minutes of taking a dose.

 

Who Should Use Buttercup Bronchostop Cough Syrup?

 

This product is suitable for adults and young people aged 12 and over who are experiencing coughs associated with colds, minor upper respiratory tract infections, or general airway irritation. It is not appropriate for everyone, so it's worth checking the criteria below before purchasing.

  • Adults aged 18 and over with a dry, tickly, or chesty cough
  • Adolescents aged 12–17 years (under adult supervision)
  • People looking for a dual-action remedy that covers both cough types
  • Those who prefer a liquid formulation over tablets or lozenges

It is not suitable for children under 12, and you should speak to your GP or pharmacist if your cough has lasted more than seven days, is accompanied by a high fever, or produces discoloured mucus — these could be signs of a more serious condition requiring medical attention.

 

How Does Buttercup Bronchostop Compare to Other Cough Syrups?

 

Feature Buttercup Bronchostop 200ml Benylin Dry Coughs Syrup
Cough type targeted Dry and chesty (dual-action) Dry coughs only
Active ingredients Dextromethorphan + Guaifenesin Dextromethorphan + Diphenhydramine
Suitable age 12 years and over 12 years and over
Causes drowsiness Less likely More likely (antihistamine content)

 

How Should You Store Buttercup Bronchostop Cough Syrup?

 

Store this product below 25°C, away from direct sunlight and heat sources. Keep the bottle tightly closed when not in use. As with all medicines, keep it out of the reach and sight of children. Do not use the syrup after the expiry date printed on the label — if you're unsure whether a product is still safe to use, your pharmacist can advise. If you're managing several health conditions at once, our ear, nose and throat range includes a variety of products that may complement your care.

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.

Buttercup Bronchostop Cough Syrup 200ml specifications
Treatment category Cough remedies
Mechanism of action Cough suppressant (dextromethorphan) + expectorant (guaifenesin)
Effective for Dry, tickly, and chesty coughs
Suitable for Adults and children aged 12 and over
Active ingredients Dextromethorphan hydrobromide, guaifenesin
Pack size 200ml
UK classification General Sale List (GSL)
Drug class Antitussive / Expectorant
Preparation Oral syrup
Route of administration Oral

Specifications of Buttercup Bronchostop Cough Syrup 200ml

 

What Is Buttercup Bronchostop Cough Syrup and What Is It Used For?

 

Buttercup Bronchostop Cough Syrup is an over-the-counter oral medicine used to relieve coughs associated with colds, minor upper respiratory tract infections, and general airway irritation. It contains two active ingredients — dextromethorphan hydrobromide and guaifenesin — which work together to suppress the cough reflex and loosen mucus. It is intended for short-term use in adults and young people aged 12 and over.

 

What Do You Need to Know Before Using Buttercup Bronchostop Cough Syrup?

 

Before taking this syrup, read the following carefully. There are certain situations where this product should not be used, and others where caution is needed.

Do not use this product if you:

  • Are under 12 years of age
  • Are allergic to dextromethorphan, guaifenesin, or any other ingredient in the syrup
  • Are currently taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days
  • Have a persistent or chronic cough associated with asthma, smoking, or emphysema
  • Have a cough producing excessive mucus

Speak to your pharmacist or GP before use if you:

  • Are pregnant or breastfeeding
  • Have liver or kidney problems
  • Have a history of drug dependence
  • Are taking sedatives, antidepressants, or other cough and cold medicines

Known drug interactions:

  • MAOIs — serious interaction; do not use together
  • Selective serotonin reuptake inhibitors (SSRIs) — may increase risk of serotonin syndrome
  • Sedatives and sleeping tablets — may increase drowsiness
  • Other medicines containing dextromethorphan — risk of overdose if combined

 

How Should You Use Buttercup Bronchostop Cough Syrup?

 

Always use this medicine exactly as described in the patient information leaflet or as directed by your pharmacist. Use the measuring device provided or a calibrated oral syringe — never a household spoon, as this can lead to inaccurate dosing.

  1. Shake the bottle gently before each use.
  2. Measure the correct dose using the measuring cup or oral syringe provided.
  3. Swallow the syrup directly — do not dilute it.
  4. Take with a glass of water if preferred.
  5. Allow at least four hours between doses.
  6. Do not take more than four doses in any 24-hour period.
Age Group Dose Frequency Maximum daily dose
Adults and children aged 12+ 10ml Up to 4 times daily 40ml
Children under 12 Not suitable — do not use

 

What Are the Possible Side Effects of Buttercup Bronchostop Cough Syrup?

 

Like all medicines, this product can cause side effects, although not everyone will experience them. The NHS advises that you stop taking any medicine and seek advice if you experience a severe reaction. If you're also managing other symptoms, our pain relief range may help with associated discomfort such as a sore throat or headache.

Common side effects:

  • Nausea
  • Stomach upset or discomfort
  • Dizziness
  • Drowsiness

Less common side effects:

  • Headache
  • Vomiting
  • Skin rash or itching
  • Confusion (particularly in elderly patients or at higher doses)

Stop using this product and seek immediate medical attention if you experience difficulty breathing, swelling of the face or throat, or a severe skin reaction — these may indicate a rare allergic response.

 

How Should You Store Buttercup Bronchostop Cough Syrup?

 

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat
  • Keep the bottle tightly closed after each use
  • Keep out of the reach and sight of children
  • 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

If you're stocking up your medicine cabinet for the season, you might also want to explore our vitamins and supplements range to support your immune health alongside treatment.

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 Buttercup Bronchostop cough syrup online in the UK?

You can buy Buttercup Bronchostop Cough Syrup 200ml directly from Cured Pharmacy, a UK GPhC-registered online pharmacy. It is available without a prescription as an over-the-counter medicine. Simply add it to your basket and choose your preferred delivery option at checkout.

How does Buttercup Bronchostop cough syrup work in the body?

The syrup contains dextromethorphan hydrobromide, which acts on the cough centre in the brain to reduce the urge to cough, and guaifenesin, which thins and loosens mucus in the airways. Together, these two ingredients address both dry and chesty coughs. Effects are typically felt within 30 minutes of taking a dose.

How do I use Buttercup Bronchostop cough syrup step by step?

Shake the bottle gently, then measure 10ml using the measuring cup provided — never a household spoon. Swallow the dose directly and allow at least four hours before taking the next dose. Do not take more than four doses in any 24-hour period.

What is the correct dose of Buttercup Bronchostop cough syrup for adults?

Adults and young people aged 12 and over should take 10ml up to four times daily, leaving at least four hours between doses. The maximum daily dose is 40ml. Always read the patient information leaflet before use and do not exceed the stated dose.

Can children under 12 take Buttercup Bronchostop cough syrup?

No — this product is not suitable for children under 12 years of age. If your child has a cough, speak to your pharmacist or GP for age-appropriate alternatives. You can also explore our baby and toddler range for products designed for younger children.

What are the side effects of Buttercup Bronchostop cough syrup?

Common side effects include nausea, dizziness, drowsiness, and stomach discomfort. Less commonly, some people may experience headache, vomiting, or a skin rash. If you experience any severe or unexpected reaction, stop use immediately and contact your pharmacist or GP.

How do I manage side effects of Buttercup Bronchostop cough syrup?

Taking the syrup with a glass of water and after food may help reduce nausea or stomach upset. If drowsiness occurs, avoid driving or operating machinery. For persistent or severe side effects, stop use and seek advice from your pharmacist or GP promptly.

Can I take Buttercup Bronchostop cough syrup with other medicines?

Do not take this syrup if you are currently taking or have taken MAOIs within the last 14 days, as this can cause a serious interaction. It may also interact with SSRIs, sedatives, and other cough medicines containing dextromethorphan. Always check with your pharmacist before combining medicines.

Is Buttercup Bronchostop cough syrup safe during pregnancy?

If you are pregnant or breastfeeding, you should consult your doctor or pharmacist before using this product. Dextromethorphan-containing medicines are generally not recommended during the first trimester of pregnancy. Your healthcare provider can suggest a safer alternative if needed.

Who is eligible to use Buttercup Bronchostop cough syrup?

This product is suitable for adults and young people aged 12 and over who have a dry, tickly, or chesty cough caused by a cold or minor respiratory infection. It is not suitable for those with chronic coughs linked to asthma, emphysema, or smoking, or for anyone with a known allergy to its ingredients.

What happens if I miss a dose of Buttercup Bronchostop cough syrup?

If you miss a dose, simply take the next one when needed — but ensure at least four hours have passed since your last dose. Do not double up to compensate for a missed dose. This product is taken as needed rather than on a strict schedule, so missing a dose is unlikely to cause problems.

How long can you use Buttercup Bronchostop cough syrup for?

This syrup should not be used for more than seven days without consulting a doctor or pharmacist. If your cough persists beyond this period, worsens, or is accompanied by fever or coloured mucus, seek medical advice. Prolonged coughs can sometimes indicate an underlying condition that needs assessment.

What are the alternatives to Buttercup Bronchostop cough syrup?

Alternatives include Benylin Dry Coughs Syrup (for dry coughs only), Robitussin Chesty Cough Medicine (guaifenesin-only), and simple honey and lemon preparations for mild symptoms. The right choice depends on your cough type — your pharmacist can help you decide. You can also browse our full cold and flu range for more options.

What is the best time to take Buttercup Bronchostop cough syrup?

There is no single "best" time — take it when your cough symptoms are most troublesome, up to four times daily. Many people find it helpful to take a dose before bed if a cough is disrupting sleep. Always leave at least four hours between doses and do not exceed the daily maximum.

Are there any recent studies on dextromethorphan for cough relief?

Dextromethorphan has been used as a cough suppressant for decades and remains one of the most studied over-the-counter antitussive agents. Clinical evidence supports its short-term effectiveness for suppressing dry coughs in adults. The NHS and BNF continue to recognise it as an established treatment option for acute cough management.

How Should You Use Buttercup Bronchostop Cough Syrup?

Always use this syrup exactly as described in the patient information leaflet. Using the correct measuring device is important — the measuring cup provided with the bottle ensures you take an accurate dose every time. Never estimate using a household teaspoon, as these vary in size and can lead to under- or over-dosing.

What Is the Correct Dose of Buttercup Bronchostop Cough Syrup?

The dose is the same for all eligible users aged 12 and over. Do not adjust the dose based on the severity of your cough — stick to the recommended amount and frequency as stated below.

When Is the Best Time to Use Buttercup Bronchostop Cough Syrup?

Take a dose whenever your cough symptoms are most disruptive — there is no fixed schedule. Many people find it particularly helpful to take a dose in the evening before bed, as coughing at night can significantly disturb sleep. If your cough is worse in the morning, taking a dose shortly after waking may help you start the day more comfortably. Just remember to space doses at least four hours apart throughout the day.

How Long Can You Use Buttercup Bronchostop Cough Syrup For?

This product is intended for short-term use only. Do not use it for more than seven consecutive days without speaking to a doctor or pharmacist. Most coughs caused by colds or minor respiratory infections will begin to improve within this timeframe. If your cough persists beyond seven days, worsens, or is accompanied by a high temperature, breathlessness, or blood in your mucus, stop use and seek medical advice promptly — these symptoms may indicate a condition that requires further investigation.

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

What Are the Most Common Side Effects of Buttercup Bronchostop Cough Syrup?

Most people tolerate this syrup well when taken at the recommended dose. However, as with any medicine, some individuals may experience unwanted effects. Common side effects are generally mild and tend to resolve on their own without the need to stop treatment.

  • Nausea or stomach discomfort
  • Dizziness or light-headedness
  • Drowsiness
  • Headache

What Are the Less Common Side Effects of Buttercup Bronchostop Cough Syrup?

Less commonly, some people may experience more noticeable reactions. These are not typical but are worth being aware of, particularly if you are taking other medicines at the same time or have an underlying health condition.

  • Vomiting
  • Skin rash or itching
  • Confusion or disorientation (more likely at higher doses or in elderly patients)
  • Constipation
  • Dry mouth

What Are the Serious Side Effects of Buttercup Bronchostop Cough Syrup?

Serious side effects are rare but require immediate medical attention. Stop taking this product straight away and call 999 or go to your nearest A&E if you experience any of the following:

  • Difficulty breathing or swallowing
  • Swelling of the face, lips, tongue, or throat (signs of a severe allergic reaction — anaphylaxis)
  • Severe skin reactions such as blistering or peeling
  • Rapid or irregular heartbeat

Signs of serotonin syndrome — which can occur if this product is taken alongside SSRIs or MAOIs — include agitation, confusion, rapid heart rate, and muscle twitching. This is a medical emergency.

What Should You Do If You Experience Side Effects of Buttercup Bronchostop Cough Syrup?

For mild side effects such as nausea, try taking the syrup with a glass of water or after food. If drowsiness occurs, avoid driving, cycling, or operating heavy machinery until you feel fully alert again. Do not take additional doses to try to counteract any side effect — simply stop use and seek advice. You can report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Buttercup Bronchostop Cough Syrup Interact With Other Medicines?

Yes — this product can interact with several other medicines. The most significant interaction is with monoamine oxidase inhibitors (MAOIs), which can cause a dangerous rise in blood pressure or serotonin syndrome when combined with dextromethorphan. Do not use this syrup if you have taken an MAOI within the last 14 days. It may also interact with SSRIs, tricyclic antidepressants, sedatives, sleeping tablets, and other over-the-counter cough and cold products containing dextromethorphan. Always tell your pharmacist about all medicines you are currently 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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