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Benylin Mucus Cough Night Guaifenesin & Diphenhydramine Syrup - 150ml

Night-time chesty cough syrup: full-strength guaifenesin thins and loosens mucus while diphenhydramine calms the cough and helps you sleep, with soothing levomenthol. Ages 12+, 150ml.

  • Thins and loosens mucus.
  • Calms the cough so you can sleep.
  • Guaifenesin 100mg + diphenhydramine.
  • Adults and children over 12.
  • Limit: 1 pack per order.
Regular price £7.79 GBP inc. VAT
In stock
Safety information 3
Pharmacy medicine — pharmacist review
You'll answer a short set of questions before this can be added to your basket, and our pharmacist reviews every order before it is dispatched.
Diphenhydramine — causes drowsiness
A sedating antihistamine: don't drive or use machinery after a dose, and avoid alcohol. Not with any other diphenhydramine product, including night-time sleep aids such as Nytol. Ask a pharmacist first with glaucoma, prostate or bladder problems, epilepsy, or if you're pregnant or breastfeeding.
See a GP if the cough persists
A cough lasting more than three weeks, coughing up blood, breathlessness or wheeze, chest pain, a high fever that won't settle, or a cough in someone with a long-term lung condition needs a GP rather than another bottle. Not for more than a few days at a time.

Product overview

About Benylin Mucus Cough Night

For the cough that's chesty by day and won't let you sleep at night: guaifenesin at full strength to thin and loosen mucus, diphenhydramine to calm the cough and help you rest, and levomenthol to soothe. The night-time partner to Benylin Mucus Cough Max. 150ml bottle, pharmacy-only, for adults and children over 12.

Why loosen mucus at night

Suppressing a chesty cough completely traps the mucus; leaving it alone means coughing all night. Mucus Cough Night splits the difference: the guaifenesin keeps the mucus thin so the coughs you do have are productive, while the diphenhydramine takes the edge off the reflex and adds the drowsiness that lets you sleep between them.

How to take

Adults and children over 12: 10ml at bedtime, repeated every six hours if needed, no more than four doses in 24 hours, using the measuring cup. Not for under-12s. Don't take with any other diphenhydramine, antihistamine or cough and cold product.

Good to know

Causes drowsiness: no driving, no alcohol. Never use it to sedate a child. Ask a pharmacist first with asthma or a long-term chest condition, glaucoma, prostate problems, or in pregnancy or breastfeeding. A cough lasting more than three weeks needs a GP. Pharmacist-reviewed before dispatch.

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