This site is intended for UK healthcare professionals
Medscape UK Univadis Logo
Medscape UK Univadis Logo

Guaifenesin

Presentation

Oral formulations of guaifenesin

Drugs List

  • BENYLIN CHILDREN'S CHESTY COUGHS oral solution sugar-free
  • BENYLIN MUCUS COUGH MAX MENTHOL oral solution
  • COVONIA CHESTY COUGH syrup sugar-free
  • guaifenesin 100mg/5ml oral solution
  • guaifenesin 100mg/5ml oral solution sugar-free
  • guaifenesin 200mg/15ml oral solution
  • guaifenesin 50mg/5ml oral solution
  • guaifenesin 50mg/5ml oral solution sugar-free
  • guaifenesin 66.67mg/5ml oral solution sugar-free
  • HILLS BALSAM CHESTY COUGH syrup
  • JACKSONS ALL FOURS EXTRA STRENGTH oral solution
  • JACKSONS ALL FOURS THE ORIGINAL syrup
  • LIQUFRUTA GARLIC COUGH MEDICINE oral solution
  • ROBITUSSIN CHESTY COUGH 100mg/5ml linctus sugar-free
  • VICKS COUGH SYRUP FOR CHESTY COUGHS oral solution
  • VICKS VAPOSYRUP CHESTY COUGH 200mg/15ml syrup
  • Therapeutic Indications

    Uses

    Cough with viscous sputum

    Dosage

    Adults

    Individual brands may vary in their dosage recommendations and maximum daily dosage.

    100 - 200 mg guaifenesin 3 to 4 times a day. Maximum daily dose 800 mg guaifenesin.

    Elderly

    Individual brands may vary in their dosage recommendations and maximum daily dosage.

    100 - 200 mg guaifenesin 3 to 4 times a day. Maximum daily dose 800 mg guaifenesin.

    Children

    Individual brands may differ in their dosage recommendations for use in children.

    MHRA/CHM advice (March 2008)
    Children should not be given more than one cough or cold preparation at a time because different brands may contain the same active ingredient; care should be taken to give the correct dose.

    Children over 12 years
    100 - 200 mg guaifenesin 3 to 4 times a day. Maximum daily dose 800 mg guaifenesin.

    Children aged 6 to 12 years (Not all brands are recommended for use in children under 12 years of age)
    100 mg guaifenesin 4 times a day. Maximum daily dose 400 mg guaifenesin.

    Contraindications

    Children under 6 years

    Precautions and Warnings

    Children 6 to 12 years
    Alcoholism
    Asthma
    Breastfeeding
    Diabetes mellitus
    Epileptic disorder
    Excessive bronchial secretions
    Glucose-galactose malabsorption syndrome
    Hereditary fructose intolerance
    Pregnancy
    Severe hepatic impairment
    Severe renal impairment

    Exclude chronic, persistent cough such as occurs with asthma or emphysema
    Not all available brands are licensed for all age groups
    Oral solution with maltitol unsuitable in hereditary fructose intolerance
    Presentations with sorbitol unsuitable in hereditary fructose intolerance
    Some formulations contain fructose
    Some formulations contain glucose
    Some formulations contain Ponceau 4R (E124)-may cause allergic reactions
    Some formulations contain propylene glycol
    Some formulations contain sucrose
    Some formulations may contain alcohol
    Some formulations may contain sugar
    May affect results of some laboratory tests
    Should not be taken with other cough or cold medicine
    Advise patient not to exceed stated dose
    Advise patient to seek medical advice if symptoms persist for > 5 days

    Guaifenesin is considered to be possibly porphyrinogenic and therefore, it should be used only when no safer alternative is available.

    MHRA/CHM advice (February 2009)

    Cough and cold remedies containing diphenhydramine and pholcodine should no longer be used in children under 6 as the balance of benefits and risk has not been shown to be favourable.

    However, the MHRA/CHM also lists a number of combination products which are being phased out from the market for use in children under 12 years. This product is included on this list, therefore, it is not recommended for children up to the age of 12 years.

    MHRA/CHM advice (March 2008)

    Children should not be given more than one cough or cold preparation at a time because different brands may contain the same active ingredient; care should be taken to give the correct dose.

    Pregnancy and Lactation

    Pregnancy

    Use guaifenesin with caution in pregnancy.

    There is no data to support an association between guaifenesin and congenital defects.

    Some formulations contain alcohol. The ethanol content should be taken into account in pregnancy.

    The use of all medication in pregnancy should be avoided whenever possible; particularly in the first trimester. Non-drug treatments should also be considered. When essential, a medication with the best safety record over time should be chosen, employing the lowest effective dose for the shortest possible time. Polypharmacy should be avoided. Teratogens taken in the pre-embryonic period, often quoted as lasting until 14 to 17 days post-conception, are believed to have an all-or-nothing effect. Where drugs have a short half-life, and when the date of conception is certain, this may allow women to be reassured where drug exposure has occurred within this time frame. Further advice may be available from the UK National Teratology Information Service (NTIS) and through ToxBase, available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org ).

    Lactation

    Use guaifenesin with caution in breastfeeding.

    At the time of writing, there is no published experience concerning the use of guaifenesin during breast feeding.

    Some formulations contain alcohol. The ethanol content should be taken into account in breastfeeding women.

    Neonates, infants born prematurely, those with low birth weight, those with an unstable gastrointestinal function or who have serious illnesses may require special consideration. For any infant, if a drug is prescribed to the nursing mother, it should be at the lowest practical dose and for the shortest time. When drug administration is unavoidable and breastfeeding is to continue, minimisation of exposure of the infant to the drug may sometimes be achieved by timing the maternal doses to just after a feeding episode. Infants exposed to drugs via breast milk should be monitored for unusual signs or symptoms. Interactions between the drug received by the infant from the mother's milk and medication prescribed for the infant should also be considered, for example, when the drug given to the infant may prevent metabolism of the drug received via breast milk.
    Specialist advice is available from the UK Drugs in Lactation Advisory Service at https://www.midlandsmedicines.nhs.uk/content.asp?section=6&subsection=17&pageIdx=1

    Side Effects

    Abdominal discomfort
    Anaphylactic reaction
    Angioedema
    Dizziness
    Drowsiness
    Hypersensitivity reactions
    Nausea
    Rash
    Urticaria
    Vomiting

    Overdosage

    It is strongly recommended that the UK National Poisons Information Service be consulted on cases of suspected or actual overdose where there is doubt over the degree of risk or about appropriate management.

    The following number will direct the caller to the relevant local centre (0844) 892 0111

    Information may be obtained if you have access to ToxBase the primary clinical toxicology database of the National Poisons Information Service. This is available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org

    Further Information

    Last Full Review Date: January 2016.

    Reference Sources

    Drugs in Pregnancy and Lactation: A Reference Guide to Fetal and Neonatal Risk, 10th edition (2015) ed. Briggs, G., Freeman, R. Wolters Kluwer Health, Philadelphia.

    Summary of Product Characteristics: Benylin Children's Chesty Coughs. McNeil Products Ltd. Revised May 2016.

    Summary of Product Characteristics: Benylin Mucus Cough Menthol oral solution. McNeil Products Ltd. Revised September 2016.

    Summary of Product Characteristics: Covonia Chesty Cough Sugar Free Syrup. Thornton & Ross Limited. Revised April 2015.

    Summary of Product Characteristics: Hills Balsam Chesty Cough liquid. Boston Healthcare Ltd. Revised April 2014.

    Summary of Product Characteristics: Lemsip Cough Chesty. Reckitt Benckiser. Revised September 2016.

    Summary of Product Characteristics: Liqufruta Garlic Cough Medicine. Alston Garrard & Co Ltd. Revised September 2016.

    Summary of Product Characteristics: Robitussin Chesty Cough Medicine. Pfizer Consumer Healthcare. Revised January 2014.

    Summary of Product Characteristics: Tixylix Chesty Cough linctus. Novartis Consumer Health. Revised July 2013.

    Summary of Product Characteristics: Veno's Expectorant. Forest Laboratories UK Ltd. Revised September 2015.

    Dear Healthcare Professional Letter. Medicines and Healthcare products Regulatory Agency. 28th February 2009.
    https://www.mhra.gov.uk/home/idcplg?IdcService=GET_FILE&dDocName=CON038904&RevisionSelectionMethod=LatestReleased
    Last accessed: 18 January 2017.

    Access the full UK drug database with a FREE Medscape UK Account
    It takes just a few minutes, and you’ll get unlimited access to information on over 11,000 UK drugs.
    Register for Free

    Already a member? Log in

    Medscape UK | Univadis prescription drug monographs & interactions are based on FDB Multilex Content

    FDB Logo

    FDB Disclaimer : FDB Multilex is intended for the use of healthcare professionals and is provided on the basis that the healthcare professionals will retain FULL and SOLE responsibility for deciding what treatment to prescribe or dispense for any particular patient or circumstance.