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Benylin Children's Chesty Coughs

Active Ingredient:
McNeil Products Ltd See contact details
ATC code: 
About Medicine
{healthcare_pro_orange} This information is for use by healthcare professionals
Last updated on emc: 14 Nov 2022
1. Name of the medicinal product

BENYLIN Children's Chesty Coughs

Calcough Six Plus

2. Qualitative and quantitative composition

BENYLIN Children's Chesty Coughs contains 50 mg guaifenesin in each 5 ml.

Each 5ml also contains:

Sorbitol liquid (non-crystallising)

2.525 g/5ml

Sodium Citrate

28.5 mg/5ml

Sodium Saccharin

20.5 mg/5ml

Sodium Benzoate

15 mg/5ml

Carmellose Sodium

48 mg/5ml

Benzyl alcohol

0.05 mg/5ml

For the full list of excipients, see section 6.1.

3. Pharmaceutical form


4. Clinical particulars
4.1 Therapeutic indications

BENYLIN Children's Chesty Coughs is an expectorant for the symptomatic relief of acute productive (chesty) coughs.

4.2 Posology and method of administration


Adults and children aged 12 years and over:

Not applicable.

Children aged 6 to 12 years:

10 ml syrup four times daily.

Maximum daily dose: 40 ml syrup (400 mg guaifenesin)

Not to be used for more than 5 days without the advice of a doctor. Parents and carers should seek medical attention if the child's condition deteriorates during treatment.

Children under 6 years:

Benylin Children's Chesty Coughs is contraindicated in children under the age of 6 years (see section 4.3).

Method of administration

For oral use

Do not exceed the stated dose.

Keep out of the sight and reach of children.

4.3 Contraindications

BENYLIN Children's Chesty Coughs is contraindicated in individuals with known hypersensitivity to the product, or any of its components.

Not to be used in children under the age of 6 years.

4.4 Special warnings and precautions for use

Ask a doctor before use if your child suffers from chronic cough, if he/she has asthma or is suffering from an acute asthma attack.

Stop use and ask a healthcare professional if your child's cough lasts for more than 5 days, comes back, or is accompanied by a fever, rash or persistent headache.

Do not give with a cough suppressant.

Caution should be exercised in the presence of severe renal or severe hepatic impairment.

Not more than 4 doses should be given in any 24 hours.

Do not exceed the stated dose.

Do not take with any other cough and cold medicine.

This medicine contains 5.05g sorbitol in each 10 ml dose.

The additive effect of concomitantly administered products containing sorbitol (or fructose) and dietary intake of sorbitol (or fructose) should be taken into account. The content of sorbitol in medicinal products for oral use may affect the bioavailability of other medicinal products for oral use administered concomitantly. Patients with hereditary fructose intolerance (HFI) should not take/be given this medicinal product. Sorbitol may cause gastrointestinal discomfort and mild laxative effect.

This medicinal product contains 33.04 mg sodium per 10 ml dose, equivalent to 1.65% of the WHO recommended maximum daily intake of 2 g sodium for an adult.

This medicine contains 25.2 mg benzoate salt in each 10 ml dose.

This medicine contains 0.1 mg benzyl alcohol in each 10 ml dose. Benzyl alcohol may cause allergic reactions. This medicine must be used with caution in patients with renal or hepatic impairment, or in patients who are pregnant or breast-feeding, because of the risk of accumulation and toxicity (metabolic acidosis).

4.5 Interaction with other medicinal products and other forms of interaction

If urine is collected within 24 hours of a dose of BENYLIN Children's Chesty Coughs a metabolite of guaifenesin may cause a colour interference with laboratory determinations of urinary 5-hydroxyindoleacetic acid (5-HIAA) and vanillylmandelic acid (VMA).

4.6 Fertility, pregnancy and lactation

This product has been formulated specifically for children, and would therefore not normally be taken during pregnancy and lactation.


There are no or limited amount of data from the use of Guaifenesin in pregnant women. Animal studies are insufficient with respect to reproductive toxicity (see section 5.3). BENYLIN Children's Chesty Coughs is not recommended during pregnancy and in women of childbearing potential not using contraception.


Guaifenesin is excreted in breast milk in small amounts. There is insufficient information on the effects of Guaifenesin in breastfed newborns/infants. A decision must be made whether to discontinue breast-feeding or to discontinue/abstain from BENYLIN Children's Chesty Coughs therapy, taking into account the benefit of breast -feeding for the child and the benefit of therapy for the woman.


There is insufficient information available to determine whether guaifenesin has the potential to impair fertility.

4.7 Effects on ability to drive and use machines

Guaifenesin has no or negligible influence on the ability to drive or operate machinery.

4.8 Undesirable effects

The safety of guaifenesin is based on available data from clinical trials and adverse drug reactions (ADRs) identified during post-marketing experience.

The frequencies are provided according to the following convention:

Very common ≥ 1/10

Common ≥ 1/100 and < 1/10

Uncommon ≥ 1/1,000 and <1/100

Rare ≥ 1/10,000 and <1/1,000

Very rare <1/10,000

Not known (cannot be estimated from the available data)

ADRs are presented by frequency category based on 1) incidence in adequately designed clinical trials or epidemiology studies, if available, or 2) when incidence cannot be estimated, frequency category is listed as 'Not known'.

Adverse Drug Reactions Identified during Clinical Trials, Epidemiology studies and Post-Marketing Experience with Guaifenesin. Frequency Category estimated from Clinical Trials or Epidemiology Studies

Body system (SOC)


Adverse Event Preferred Term

Immune system disorders

Not known

Hypersensitivity reactions (hypersensitivity, pruritus and urticaria)


Gastrointestinal disorders

Not known

Abdominal pain upper




Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9 Overdose


The effects of acute toxicity from guaifenesin may include gastrointestinal discomfort, nausea and drowsiness. When taken in excess, guaifenesin may cause renal calculi.


Treatment should be symptomatic and supportive.

5. Pharmacological properties
5.1 Pharmacodynamic properties

Pharmacotherapeutic group: Expectorants, ATC code: R05CA03

Guaifenesin is thought to exert its pharmacological action by stimulating receptors in the gastric mucosa. This increases the output from secretory glands of the gastrointestinal system and reflexly increases the flow of fluids from glands lining the respiratory tract. The result is an increase in volume and decrease in viscosity of bronchial secretions. Other actions may include stimulating vagal nerve endings in bronchial secretory glands and stimulating certain centres in the brain, which in turn enhance respiratory fluid flow. Guaifenesin produces its expectorant action within 24 hours.

5.2 Pharmacokinetic properties


Guaifenesin is well absorbed from the gastro-intestinal tract following oral administration, although limited information regarding its pharmacokinetics is available. After the administration of 600 mg guaifenesin to healthy adult volunteers, the Cmax was approximately 1.4 ug/ml, with tmax occurring approximately 15 minutes after drug administration.


No information is available on the distribution of guaifenesin in humans.

Metabolism and elimination

Guaifenesin appears to undergo both oxidation and demethylation. Following an oral dose of 600 mg guaifenesin to 3 healthy male volunteers, the t½ was approximately 1 hour and the drug was not detectable in the blood after approximately 8 hours.

Pharmacokinetics in Renal/Hepatic Impairment

There have been no specific studies of BENYLIN Children's Chesty Coughs or guaifenesin in subjects with renal or hepatic impairment.

Caution is therefore recommended when administering this product to subjects with severe renal or hepatic impairment.

Pharmacokinetics in the Elderly

Not applicable.

5.3 Preclinical safety data


There is insufficient information available to determine whether guaifenesin has mutagenic potential.


There is insufficient information available to determine whether guaifenesin has carcinogenic potential.


There is insufficient information available to determine whether guaifenesin has teratogenic potential.


There is insufficient information available to determine whether guaifenesin has the potential to impair fertility.

6. Pharmaceutical particulars
6.1 List of excipients


Sorbitol liquid (non-crystallising)

Sodium citrate

Citric acid monohydrate

Sodium saccharin

Sodium benzoate

Carmellose Sodium

Strawberry flavour (containing benzyl alcohol)

Purified water

6.2 Incompatibilities

None known

6.3 Shelf life

Unopened: 3 years

Opened: Discard the bottle 4 months after opening, even if there is syrup remaining.

6.4 Special precautions for storage

Do not store above 25° C. Store in the original package.

6.5 Nature and contents of container

BENYLIN Children's Chesty Coughs is stored in 125 ml, 300 ml or 30 ml amber glass bottles with a polyester wadded white aluminium ROPP cap


a 3 piece plastic child resistant, tamper evident closure fitted with a polyester faced wad, or polyethylene/expanded polyethylene laminated wad


a 2 piece plastic child resistant, tamper evident closure fitted with a PVDC wad.

Not all pack sizes may be marketed.

6.6 Special precautions for disposal and other handling

Any unused product or waste material should be disposed of in accordance with local requirements

Administrative Data

7. Marketing authorisation holder

McNeil Products Limited

50 – 100 Holmers Farm Way

High Wycombe


HP12 4EG


8. Marketing authorisation number(s)

PL 15513/0052

9. Date of first authorisation/renewal of the authorisation


10. Date of revision of the text

27 October 2022

McNeil Products Ltd
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50-100 Holmers Farm Way, High Wycombe, HP12 4EG, UK
Medical Information Direct Line
0808 238 9999 (freephone)
Medical Information e-mail
[email protected]