Original: $7.69
-65%$7.69
$2.69The Story
What Is Benylin Mucus Cough Night and How Does It Help?
A chesty cough that keeps you awake at night is exhausting — and frustrating. Benylin Mucus Cough Night is an over-the-counter oral liquid designed specifically for evening use, targeting mucus-producing coughs while also helping you drift off to sleep. Each 150ml bottle contains a dual-action formula that works on both the cough itself and the sleeplessness that so often comes with it. If you've been lying awake coughing for hours, this could be exactly what you need. You can find it alongside other cold and flu remedies at Cured Pharmacy.
This product is classified as a General Sale List (GSL) medicine in the UK, meaning it's available without a prescription. It's manufactured by Benylin, a well-established brand in the UK cough and cold market. At £7.69 for 150ml, it represents a straightforward, accessible option for adults dealing with a productive nighttime cough.
How Does Benylin Mucus Cough Night Work in the Body?
The formula relies on two active ingredients working together. Understanding what each one does helps you use the product with confidence.
- Diphenhydramine hydrochloride (14mg per 5ml): This is a first-generation antihistamine. It works centrally by suppressing the cough reflex in the brain, reducing the urge to cough. It also crosses the blood-brain barrier, producing a sedative effect that helps you fall asleep more easily.
- Levomenthol (1.1mg per 5ml): A naturally derived compound from peppermint oil. It creates a cooling sensation in the throat and upper airways, which can ease the discomfort associated with a chesty cough and make breathing feel more comfortable.
Together, these ingredients address two of the most disruptive aspects of a nighttime mucus cough — the cough itself and the inability to sleep through it.
Who Is Benylin Mucus Cough Night Suitable For?
This product is intended for adults and adolescents aged 12 and over who are experiencing a chesty, mucus-producing cough that is disrupting their sleep. It's particularly useful during cold and flu season, or when a lingering respiratory infection is keeping you up at night.
- Adults aged 18 and over with a productive nighttime cough
- Adolescents aged 12–17 (under adult supervision)
- People who need both cough relief and sleep support in one dose
- Those who prefer a liquid formulation over tablets
It is not suitable for children under 12, pregnant or breastfeeding women (without medical advice), or anyone with certain underlying health conditions — see the patient information section below for full details.
How Does Benylin Mucus Cough Night Compare to Benylin Mucus Cough Day?
| Feature | Benylin Mucus Cough Night | Benylin Mucus Cough Day |
|---|---|---|
| Active ingredient | Diphenhydramine HCl + Levomenthol | Guaifenesin + Levomenthol |
| Sedating effect | Yes — helps sleep | No — non-drowsy |
| Best time to take | At bedtime only | During the day |
| Suitable for driving | No | Yes |
How Should You Store Benylin Mucus Cough Night?
Store your bottle of Benylin Mucus Cough Night below 25°C, away from direct sunlight and heat sources. Keep it out of reach and sight of children at all times. Do not use the product after the expiry date printed on the label — even if the liquid looks and smells fine. Once opened, check the packaging for any in-use shelf-life guidance.
If you're managing multiple symptoms this winter — such as a sore throat alongside your cough — it's worth browsing the ear, nose and throat range at Cured Pharmacy for complementary products. Always check with your pharmacist before combining medicines.
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 Night 150ml specifications
| Treatment category | Cough remedies |
| Mechanism of action | Antihistamine cough suppressant + throat-soothing menthol |
| Effective for | Chesty mucus coughs at night; sleep disruption due to coughing |
| Suitable for | Adults and children aged 12 and over |
| Active ingredients | Diphenhydramine hydrochloride 14mg/5ml; Levomenthol 1.1mg/5ml |
| Pack size | 150ml |
| UK classification | General Sale List (GSL) |
| Drug class | First-generation antihistamine / cough suppressant |
| Preparation | Oral liquid (syrup) |
| Route of administration | Oral |
Specifications of Benylin Mucus Cough Night 150ml
What Is Benylin Mucus Cough Night and What Is It Used For?
Benylin Mucus Cough Night is an oral liquid medicine used to relieve chesty, mucus-producing coughs in adults and young people aged 12 and over. It is specifically formulated for use at bedtime, combining a cough suppressant with a sedating antihistamine to help you get a full night's rest when a persistent cough would otherwise keep you awake. It is available over the counter without a prescription from UK pharmacies.
What Do You Need to Know Before Using Benylin Mucus Cough Night?
Before taking this medicine, read the following carefully. Some people should not use this product, and others may need to take extra care.
Do not take Benylin Mucus Cough Night if you:
- Are under 12 years of age
- Are allergic to diphenhydramine, levomenthol, or any other ingredient in the product
- Are taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days
- Have a dry, tickly, or non-productive cough
- Are pregnant or breastfeeding without first speaking to a doctor or pharmacist
- Have severe liver or kidney disease
- Have glaucoma, urinary retention, or an enlarged prostate
Speak to your pharmacist or GP before use if you:
- Have asthma, chronic bronchitis, or COPD
- Have epilepsy or a history of seizures
- Have difficulty passing urine
- Are taking other medicines that cause drowsiness
Known drug interactions — do not take alongside:
- MAOIs (e.g. phenelzine, tranylcypromine)
- Other antihistamines
- Sedatives, sleeping tablets, or anxiolytics
- Alcohol (increases sedative effect significantly)
- Tricyclic antidepressants
How Should You Use Benylin Mucus Cough Night Correctly?
Always use this medicine exactly as described on the label or as directed by your pharmacist. This product is for bedtime use only — do not take it during the day as it will cause drowsiness.
- Shake the bottle gently before use.
- Measure the correct dose using the measuring cup or spoon provided.
- Take the dose approximately 30 minutes before going to bed.
- Do not take more than one dose in any 24-hour period.
- Do not drive, cycle, or operate machinery after taking this medicine.
| Age Group | Dose | Frequency |
|---|---|---|
| Adults and children aged 12+ | 10ml (two 5ml spoonfuls) | Once at bedtime only |
| Children under 12 | Not suitable | — |
What Are the Possible Side Effects of Benylin Mucus Cough Night?
Like all medicines, Benylin Mucus Cough Night can cause side effects, although not everyone experiences them. The drowsiness caused by diphenhydramine is an expected and intentional effect at night, but it can persist into the following morning in some people.
Common side effects:
- Drowsiness (expected — do not drive the next morning if still affected)
- Dry mouth
- Dizziness or light-headedness
- Headache
Less common side effects:
- Blurred vision
- Difficulty passing urine (urinary retention)
- Constipation
- Nausea or stomach upset
- Paradoxical excitability (particularly in older adults or children — though this product is not for under-12s)
Stop taking the medicine and seek medical advice if you experience a severe allergic reaction (rash, swelling of the face or throat, difficulty breathing). If you're also managing pain alongside your cough, you may find our pain relief range helpful — but always check for interactions with your pharmacist first.
How Should You Store Benylin Mucus Cough Night Safely?
- Store below 25°C in a cool, dry place
- Keep away from direct sunlight and heat
- Keep out of the sight and reach of children
- Do not use after the expiry date on the bottle
- Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacist
If you're looking for additional support during cold and flu season, our vitamins and supplements range includes immune-support options that may complement your recovery. Always speak to your pharmacist if you're unsure about combining products.
References
- https://www.nhs.uk/conditions/cough/
- https://www.nhs.uk/medicines/diphenhydramine/
- https://www.nhs.uk/conditions/cold/
- https://www.nhs.uk/conditions/chest-infection/
- https://bnf.nice.org.uk/drugs/diphenhydramine-hydrochloride/
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 Night online in the UK?
You can buy Benylin Mucus Cough Night 150ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £7.69. It's available without a prescription as an over-the-counter medicine. You can also find it in most UK high street pharmacies and supermarkets.
How does Benylin Mucus Cough Night work in the body?
It contains diphenhydramine hydrochloride, a first-generation antihistamine that suppresses the cough reflex centrally in the brain and induces drowsiness to help you sleep. Levomenthol provides a cooling, soothing sensation in the throat and airways. Together, they target both the cough and the sleep disruption it causes.
How do I use Benylin Mucus Cough Night step by step?
Shake the bottle, then measure 10ml using the measuring cup provided. Take it approximately 30 minutes before going to bed. Only take one dose in any 24-hour period, and do not drive or operate machinery after taking it.
What is the correct dose of Benylin Mucus Cough Night for adults?
The recommended dose for adults and young people aged 12 and over is 10ml (two 5ml spoonfuls) taken once at bedtime. Do not exceed this dose. This product should only be taken once in a 24-hour period.
When is the best time to take Benylin Mucus Cough Night?
This medicine is specifically designed for bedtime use only. Taking it approximately 30 minutes before you plan to sleep gives the diphenhydramine time to take effect. Never take it during the day, as it will cause significant drowsiness that affects your ability to drive or function safely.
What are the side effects of Benylin Mucus Cough Night?
Common side effects include drowsiness (which is expected and intentional at night), dry mouth, dizziness, and headache. Less commonly, you may experience blurred vision, difficulty urinating, or nausea. If you experience a severe allergic reaction — such as facial swelling or difficulty breathing — stop taking it and seek urgent medical help.
How do I manage the drowsiness caused by Benylin Mucus Cough Night?
The drowsiness is an intended effect at night, but it can persist into the next morning in some people. Do not drive, cycle, or operate machinery until you are sure the sedative effect has fully worn off. Avoid alcohol entirely while taking this medicine, as it significantly increases drowsiness.
Who is eligible to take Benylin Mucus Cough Night?
This product is suitable for adults and young people aged 12 and over who have a chesty, mucus-producing cough that is disrupting their sleep. It is not suitable for children under 12, and those with certain conditions — such as glaucoma, urinary retention, or severe liver disease — should not use it. Always check with your pharmacist if you're unsure.
Is Benylin Mucus Cough Night safe during pregnancy or breastfeeding?
You should not take this medicine during pregnancy or while breastfeeding without first speaking to your doctor or pharmacist. Diphenhydramine can pass into breast milk and may not be safe for your baby. Your healthcare provider can advise on safer alternatives if needed.
What happens if I miss a dose of Benylin Mucus Cough Night?
Since this medicine is taken just once at bedtime, if you forget to take it one night, simply skip that dose and take it the following night if needed. Never take a double dose to make up for a missed one. This product is for short-term use only.
Can I take Benylin Mucus Cough Night with other medicines?
You should not take this product alongside MAOIs, other antihistamines, sedatives, sleeping tablets, tricyclic antidepressants, or alcohol, as these combinations can increase the risk of serious side effects. Always tell your pharmacist about all medicines you are currently taking before starting this product. You can browse our cold and flu range for compatible products.
How long can you use Benylin Mucus Cough Night for?
Do not use this product for more than 7 consecutive nights without seeking medical advice. If your cough persists beyond one week, worsens, or is accompanied by a high fever, chest pain, or blood in your sputum, see your GP. Prolonged coughs can sometimes indicate an underlying condition that needs investigation.
What are the alternatives to Benylin Mucus Cough Night?
Alternatives include Benylin Mucus Cough Day (non-drowsy, contains guaifenesin), other diphenhydramine-based night cough products, or simple honey and lemon remedies recommended by the NHS for mild coughs. If your cough is dry rather than chesty, a different formulation would be more appropriate — speak to your pharmacist for guidance.
Is Benylin Mucus Cough Night suitable for people with asthma?
People with asthma, chronic bronchitis, or COPD should speak to their GP or pharmacist before using this product. Cough suppressants are generally not recommended for people with these conditions, as suppressing the cough reflex can sometimes be counterproductive or mask worsening symptoms.
What are the latest recommendations on treating mucus coughs at night?
The NHS advises that most coughs caused by colds or minor respiratory infections will resolve on their own within three weeks. For nighttime relief, products containing diphenhydramine — such as Benylin Mucus Cough Night — are widely used in the UK. Staying hydrated, using a humidifier, and sleeping with your head slightly elevated can also help reduce nighttime coughing. You may also find support products in our ear, nose and throat range.
Description
What Is Benylin Mucus Cough Night and How Does It Help?
A chesty cough that keeps you awake at night is exhausting — and frustrating. Benylin Mucus Cough Night is an over-the-counter oral liquid designed specifically for evening use, targeting mucus-producing coughs while also helping you drift off to sleep. Each 150ml bottle contains a dual-action formula that works on both the cough itself and the sleeplessness that so often comes with it. If you've been lying awake coughing for hours, this could be exactly what you need. You can find it alongside other cold and flu remedies at Cured Pharmacy.
This product is classified as a General Sale List (GSL) medicine in the UK, meaning it's available without a prescription. It's manufactured by Benylin, a well-established brand in the UK cough and cold market. At £7.69 for 150ml, it represents a straightforward, accessible option for adults dealing with a productive nighttime cough.
How Does Benylin Mucus Cough Night Work in the Body?
The formula relies on two active ingredients working together. Understanding what each one does helps you use the product with confidence.
- Diphenhydramine hydrochloride (14mg per 5ml): This is a first-generation antihistamine. It works centrally by suppressing the cough reflex in the brain, reducing the urge to cough. It also crosses the blood-brain barrier, producing a sedative effect that helps you fall asleep more easily.
- Levomenthol (1.1mg per 5ml): A naturally derived compound from peppermint oil. It creates a cooling sensation in the throat and upper airways, which can ease the discomfort associated with a chesty cough and make breathing feel more comfortable.
Together, these ingredients address two of the most disruptive aspects of a nighttime mucus cough — the cough itself and the inability to sleep through it.
Who Is Benylin Mucus Cough Night Suitable For?
This product is intended for adults and adolescents aged 12 and over who are experiencing a chesty, mucus-producing cough that is disrupting their sleep. It's particularly useful during cold and flu season, or when a lingering respiratory infection is keeping you up at night.
- Adults aged 18 and over with a productive nighttime cough
- Adolescents aged 12–17 (under adult supervision)
- People who need both cough relief and sleep support in one dose
- Those who prefer a liquid formulation over tablets
It is not suitable for children under 12, pregnant or breastfeeding women (without medical advice), or anyone with certain underlying health conditions — see the patient information section below for full details.
How Does Benylin Mucus Cough Night Compare to Benylin Mucus Cough Day?
| Feature | Benylin Mucus Cough Night | Benylin Mucus Cough Day |
|---|---|---|
| Active ingredient | Diphenhydramine HCl + Levomenthol | Guaifenesin + Levomenthol |
| Sedating effect | Yes — helps sleep | No — non-drowsy |
| Best time to take | At bedtime only | During the day |
| Suitable for driving | No | Yes |
How Should You Store Benylin Mucus Cough Night?
Store your bottle of Benylin Mucus Cough Night below 25°C, away from direct sunlight and heat sources. Keep it out of reach and sight of children at all times. Do not use the product after the expiry date printed on the label — even if the liquid looks and smells fine. Once opened, check the packaging for any in-use shelf-life guidance.
If you're managing multiple symptoms this winter — such as a sore throat alongside your cough — it's worth browsing the ear, nose and throat range at Cured Pharmacy for complementary products. Always check with your pharmacist before combining medicines.
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 Night 150ml specifications
| Treatment category | Cough remedies |
| Mechanism of action | Antihistamine cough suppressant + throat-soothing menthol |
| Effective for | Chesty mucus coughs at night; sleep disruption due to coughing |
| Suitable for | Adults and children aged 12 and over |
| Active ingredients | Diphenhydramine hydrochloride 14mg/5ml; Levomenthol 1.1mg/5ml |
| Pack size | 150ml |
| UK classification | General Sale List (GSL) |
| Drug class | First-generation antihistamine / cough suppressant |
| Preparation | Oral liquid (syrup) |
| Route of administration | Oral |
Specifications of Benylin Mucus Cough Night 150ml
What Is Benylin Mucus Cough Night and What Is It Used For?
Benylin Mucus Cough Night is an oral liquid medicine used to relieve chesty, mucus-producing coughs in adults and young people aged 12 and over. It is specifically formulated for use at bedtime, combining a cough suppressant with a sedating antihistamine to help you get a full night's rest when a persistent cough would otherwise keep you awake. It is available over the counter without a prescription from UK pharmacies.
What Do You Need to Know Before Using Benylin Mucus Cough Night?
Before taking this medicine, read the following carefully. Some people should not use this product, and others may need to take extra care.
Do not take Benylin Mucus Cough Night if you:
- Are under 12 years of age
- Are allergic to diphenhydramine, levomenthol, or any other ingredient in the product
- Are taking or have taken monoamine oxidase inhibitors (MAOIs) within the last 14 days
- Have a dry, tickly, or non-productive cough
- Are pregnant or breastfeeding without first speaking to a doctor or pharmacist
- Have severe liver or kidney disease
- Have glaucoma, urinary retention, or an enlarged prostate
Speak to your pharmacist or GP before use if you:
- Have asthma, chronic bronchitis, or COPD
- Have epilepsy or a history of seizures
- Have difficulty passing urine
- Are taking other medicines that cause drowsiness
Known drug interactions — do not take alongside:
- MAOIs (e.g. phenelzine, tranylcypromine)
- Other antihistamines
- Sedatives, sleeping tablets, or anxiolytics
- Alcohol (increases sedative effect significantly)
- Tricyclic antidepressants
How Should You Use Benylin Mucus Cough Night Correctly?
Always use this medicine exactly as described on the label or as directed by your pharmacist. This product is for bedtime use only — do not take it during the day as it will cause drowsiness.
- Shake the bottle gently before use.
- Measure the correct dose using the measuring cup or spoon provided.
- Take the dose approximately 30 minutes before going to bed.
- Do not take more than one dose in any 24-hour period.
- Do not drive, cycle, or operate machinery after taking this medicine.
| Age Group | Dose | Frequency |
|---|---|---|
| Adults and children aged 12+ | 10ml (two 5ml spoonfuls) | Once at bedtime only |
| Children under 12 | Not suitable | — |
What Are the Possible Side Effects of Benylin Mucus Cough Night?
Like all medicines, Benylin Mucus Cough Night can cause side effects, although not everyone experiences them. The drowsiness caused by diphenhydramine is an expected and intentional effect at night, but it can persist into the following morning in some people.
Common side effects:
- Drowsiness (expected — do not drive the next morning if still affected)
- Dry mouth
- Dizziness or light-headedness
- Headache
Less common side effects:
- Blurred vision
- Difficulty passing urine (urinary retention)
- Constipation
- Nausea or stomach upset
- Paradoxical excitability (particularly in older adults or children — though this product is not for under-12s)
Stop taking the medicine and seek medical advice if you experience a severe allergic reaction (rash, swelling of the face or throat, difficulty breathing). If you're also managing pain alongside your cough, you may find our pain relief range helpful — but always check for interactions with your pharmacist first.
How Should You Store Benylin Mucus Cough Night Safely?
- Store below 25°C in a cool, dry place
- Keep away from direct sunlight and heat
- Keep out of the sight and reach of children
- Do not use after the expiry date on the bottle
- Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacist
If you're looking for additional support during cold and flu season, our vitamins and supplements range includes immune-support options that may complement your recovery. Always speak to your pharmacist if you're unsure about combining products.
References
- https://www.nhs.uk/conditions/cough/
- https://www.nhs.uk/medicines/diphenhydramine/
- https://www.nhs.uk/conditions/cold/
- https://www.nhs.uk/conditions/chest-infection/
- https://bnf.nice.org.uk/drugs/diphenhydramine-hydrochloride/
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 Night online in the UK?
You can buy Benylin Mucus Cough Night 150ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £7.69. It's available without a prescription as an over-the-counter medicine. You can also find it in most UK high street pharmacies and supermarkets.
How does Benylin Mucus Cough Night work in the body?
It contains diphenhydramine hydrochloride, a first-generation antihistamine that suppresses the cough reflex centrally in the brain and induces drowsiness to help you sleep. Levomenthol provides a cooling, soothing sensation in the throat and airways. Together, they target both the cough and the sleep disruption it causes.
How do I use Benylin Mucus Cough Night step by step?
Shake the bottle, then measure 10ml using the measuring cup provided. Take it approximately 30 minutes before going to bed. Only take one dose in any 24-hour period, and do not drive or operate machinery after taking it.
What is the correct dose of Benylin Mucus Cough Night for adults?
The recommended dose for adults and young people aged 12 and over is 10ml (two 5ml spoonfuls) taken once at bedtime. Do not exceed this dose. This product should only be taken once in a 24-hour period.
When is the best time to take Benylin Mucus Cough Night?
This medicine is specifically designed for bedtime use only. Taking it approximately 30 minutes before you plan to sleep gives the diphenhydramine time to take effect. Never take it during the day, as it will cause significant drowsiness that affects your ability to drive or function safely.
What are the side effects of Benylin Mucus Cough Night?
Common side effects include drowsiness (which is expected and intentional at night), dry mouth, dizziness, and headache. Less commonly, you may experience blurred vision, difficulty urinating, or nausea. If you experience a severe allergic reaction — such as facial swelling or difficulty breathing — stop taking it and seek urgent medical help.
How do I manage the drowsiness caused by Benylin Mucus Cough Night?
The drowsiness is an intended effect at night, but it can persist into the next morning in some people. Do not drive, cycle, or operate machinery until you are sure the sedative effect has fully worn off. Avoid alcohol entirely while taking this medicine, as it significantly increases drowsiness.
Who is eligible to take Benylin Mucus Cough Night?
This product is suitable for adults and young people aged 12 and over who have a chesty, mucus-producing cough that is disrupting their sleep. It is not suitable for children under 12, and those with certain conditions — such as glaucoma, urinary retention, or severe liver disease — should not use it. Always check with your pharmacist if you're unsure.
Is Benylin Mucus Cough Night safe during pregnancy or breastfeeding?
You should not take this medicine during pregnancy or while breastfeeding without first speaking to your doctor or pharmacist. Diphenhydramine can pass into breast milk and may not be safe for your baby. Your healthcare provider can advise on safer alternatives if needed.
What happens if I miss a dose of Benylin Mucus Cough Night?
Since this medicine is taken just once at bedtime, if you forget to take it one night, simply skip that dose and take it the following night if needed. Never take a double dose to make up for a missed one. This product is for short-term use only.
Can I take Benylin Mucus Cough Night with other medicines?
You should not take this product alongside MAOIs, other antihistamines, sedatives, sleeping tablets, tricyclic antidepressants, or alcohol, as these combinations can increase the risk of serious side effects. Always tell your pharmacist about all medicines you are currently taking before starting this product. You can browse our cold and flu range for compatible products.
How long can you use Benylin Mucus Cough Night for?
Do not use this product for more than 7 consecutive nights without seeking medical advice. If your cough persists beyond one week, worsens, or is accompanied by a high fever, chest pain, or blood in your sputum, see your GP. Prolonged coughs can sometimes indicate an underlying condition that needs investigation.
What are the alternatives to Benylin Mucus Cough Night?
Alternatives include Benylin Mucus Cough Day (non-drowsy, contains guaifenesin), other diphenhydramine-based night cough products, or simple honey and lemon remedies recommended by the NHS for mild coughs. If your cough is dry rather than chesty, a different formulation would be more appropriate — speak to your pharmacist for guidance.
Is Benylin Mucus Cough Night suitable for people with asthma?
People with asthma, chronic bronchitis, or COPD should speak to their GP or pharmacist before using this product. Cough suppressants are generally not recommended for people with these conditions, as suppressing the cough reflex can sometimes be counterproductive or mask worsening symptoms.
What are the latest recommendations on treating mucus coughs at night?
The NHS advises that most coughs caused by colds or minor respiratory infections will resolve on their own within three weeks. For nighttime relief, products containing diphenhydramine — such as Benylin Mucus Cough Night — are widely used in the UK. Staying hydrated, using a humidifier, and sleeping with your head slightly elevated can also help reduce nighttime coughing. You may also find support products in our ear, nose and throat range.
