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Mucodyne Syrup

Last Updated on eMC 01-Sep-2016 View changes  | SANOFI Contact details

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Please click on the link to the left to view the PIL in PDF format.

Text only version for the visually impaired
Below is a text only representation of the Patient Information leaflet. The original may contain images or tables and can be viewed in PDF format using the link to the left. This PIL may be available from the RNIB in large print, Braille or audio CD. For further information please call the RNIB Medicine Leaflet line on 0800 198 5000. The product code(s) for this leaflet is/are: PL 04425/0204, PL 04425/0205.

Mucodyne Syrup


Mucodyne 250 mg/5 ml Syrup


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Phone 0845 372 7101 for help

Read all of this leaflet carefully before you start taking this medicine

  • Keep this leaflet. You may need to read it again
  • If you have any further questions, ask your doctor or pharmacist
  • This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours
  • If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist

In this leaflet:

1. What Mucodyne Syrup is and what it is used for
2. Before you take Mucodyne Syrup
3. How to take Mucodyne Syrup
4. Possible side effects
5. How to store Mucodyne Syrup
6. Further information

1. What Mucodyne Syrup is and what it is used for

Mucodyne 250 mg/5 ml Syrup (called Mucodyne Syrup in this leaflet) contains a medicine called carbocisteine. This belongs to a group of medicines called ‘mucolytics’.

It works by making mucus (phlegm) less sticky. This makes the mucus easier to cough up.

Mucodyne Syrup is used for problems with the breathing passages (respiratory tract). These problems happen when too much mucus is made or the mucus is too sticky.

2. Before you take Mucodyne Syrup

Do not take this medicine and tell your doctor if:

  • You are allergic (hypersensitive) to carbocisteine or any of the other ingredients of Mucodyne Syrup (listed in Section 6 below)
    Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of the lips, face, throat or tongue
  • You have an ulcer in your stomach or gut (small intestine)

Do not take this medicine if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Mucodyne Syrup.

Warnings and precautions

Talk to your doctor before taking this medicine if:

  • You are elderly.
  • Have had an ulcer in your stomach or gut.
  • You are taking other medicines known to cause bleeding in the stomach.

Pregnancy and breast-feeding

Talk to your doctor before taking this medicine if:

  • You are pregnant, might become pregnant or think you may be pregnant. This medicine should not be taken during the first three months of your pregnancy
  • You are breast-feeding or planning to breast-feed

Ask your doctor or pharmacist for advice before taking any medicine if you are pregnant or breast-feeding.

Important information about some of the ingredients of Mucodyne Syrup

Mucodyne Syrup contains:

  • Sucrose: If you have been told by the doctor that you cannot tolerate some sugars, talk to your doctor before taking Mucodyne Syrup
  • Ethanol: Mucodyne Syrup contains 1.34% ethanol (alcohol). A 15ml dose of this medicine contains up to 200mg of ethanol; this is about the same amount of alcohol as 4ml of beer or 1.67ml of wine per dose. This can be harmful for those suffering from alcoholism. It should also be taken into account in pregnant or breast-feeding women and high risk groups such as patients with liver disease or fits (epilepsy).
  • Sodium: This medicine contains 97mg of sodium in each 15ml dose. Take this into consideration if you are on a controlled sodium diet
  • Methyl parahydroxybenzoate: May cause allergic reactions (these may not happen straight away). Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of the lips, face, throat or tongue.

3. How to take Mucodyne Syrup

Always take Mucodyne Syrup exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

Taking this medicine

  • Take this medicine by mouth
  • Mucodyne Syrup comes with a measuring beaker
  • If you feel that this medicine is too weak or too strong, do not change the dose yourself, but ask your doctor

How much to take

Adults (including the elderly)

  • Usual dose is 15ml three times each day
  • If your symptoms improve, your dose may be lowered to 10ml, three times, each day


  • A new strength pack presentation of 125 ml Mucodyne 250mg/5ml Paediatric Syrup is available for use in children.

If you take more Mucodyne Syrup than you should

If you take more Mucodyne Syrup than you should, tell a doctor or go to a hospital casualty department straight away. Take the medicine pack with you. This is so the doctor knows what you have taken. If you take too much Mucodyne Syrup, it is likely that you will get an upset stomach (gastrointestinal disturbance).

If you forget to take Mucodyne Syrup

If you forget a dose, do not worry. Just wait until the next dose is due. Do not take a double dose to make up for a forgotten dose.

If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, Mucodyne Syrup can cause side effects, although not everybody gets them.

Stop taking Mucodyne Syrup and see a doctor or go to a hospital straight away if:

  • You have an allergic reaction.
    The signs may include: a rash, swallowing or breathing problems, swelling of the lips, face, throat or tongue
  • You have blistering or bleeding of the skin, including around your lips, eyes, mouth, nose and genitals. You may also have flu-like symptoms and fever. This may be something called ‘Stevens-Johnson syndrome’

Tell a doctor straight away if you notice any of the following serious side effects:

  • You have blood in your vomit or black tarry stools

Tell your doctor or pharmacist if any of the following side effects get serious or lasts longer than a few days:

  • Vomiting

Talk to your doctor or a pharmacist if you notice any side effects not listed in this leaflet.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at:

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Mucodyne Syrup

Keep this medicine in a safe place where children cannot see or reach it.

Do not use Mucodyne Syrup after the expiry date which is stated on the label and carton after EXP. The expiry date refers to the last day of that month.

After use, wipe the neck of the bottle with a clean, damp cloth. This will remove any medicine left on the bottle, so you can put the cap back on tight. If you use the measuring beaker to take this medicine, make sure the beaker is clean and dry before you use it.

Store below 25°C.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

6. Further information

What Mucodyne Syrup contains

  • Each 5ml of syrup contains 250mg of the active substance, carbocisteine
  • The other ingredients are methyl parahydroxybenzoate (E218), sucrose, caramel (E150), aromatic elixir flavour (contains rum flavour and ethanol), cinnamon flavour, sodium hydroxide and water.

What Mucodyne Syrup looks like and contents of the pack

Mucodyne Syrup is a clear amber coloured syrupy liquid.

Mucodyne Syrup is available in 300ml bottles and comes with a measuring beaker.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

One Onslow Street
Tel: 0845 372 7101


Unither Liquid Manufacturing
1-3 Allée de la Neste
Z.I. d’en Sigal
31770, Colomiers

This leaflet does not contain all the information about your medicine. If you have any questions or are not sure about anything, ask your doctor or pharmacist.

This leaflet was last revised in 06/2016

© Sanofi, 1972 - 2016

302645 - 645

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Risk Materials

Educational Risk Minimisation Materials to help reduce the risk associated with using this medicine.

Mucodyne Paediatric Syrup 250 mg/5 mL (Carbocisteine Oral Liquid) DHPC letter

Mucodyne Paediatric Syrup 250 mg/5 mL (Carbocisteine Oral Liquid): new double-strength presentation - check dose volume to ensure appropriate dose is given

For Healthcare Professionals

Company contact details


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1 Onslow Street, Guildford, Surrey, GU1 4YS, UK


+44 (0)1483 535 432

Medical Information e-mail

+44 (0)1483 505 515

Medical Information Direct Line

+44 (0)845 372 7101

Before you contact this company: often several companies will market medicines with the same active ingredient. Please check that this is the correct company before contacting them. Why?

Active ingredients


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POM - Prescription Only Medicine

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