How does carbocisteine work?
Carbocisteine works by making phlegm (mucus) less sticky. This makes it easier for you to cough up.
If you have a condition such as chronic obstructive pulmonary disease (COPD) or cystic fibrosis, your body can make too much phlegm and it can be thick and sticky.
Taking carbocisteine can ease some of your symptoms by making it easier to cough up any phlegm.
When will I feel better?
Carbocisteine will start working straight away, but it may take a while for you to notice your symptoms improving. It can take time for the medicine to work and for phlegm to break up.
Keep taking your medicine even if you do not notice any improvement straight away.
Are there any long-term side effects?
There's no evidence to suggest that carbocisteine is harmful, even if you take it for a long time.
Are there any similar medicines to carbocisteine?
There are a few other medicines that are prescribed for lung problems.
Erdosteine is an oral mucolytic medicine that works in a similar way to carbocisteine. It is usually prescribed for a short time if your chronic bronchitis is getting worse.
Dornase alfa and mannitol are prescribed only for cystic fibrosis. You take them using an inhaler or nebuliser.
Will it affect my contraception?
Carbocisteine does not stop any type of contraception from working, including the combined pill and emergency contraception.
However, if taking carbocisteine makes you vomit or have severe diarrhoea for more than 24 hours, your contraceptive pills may not protect you from pregnancy. Look on the pill packet to find out what to do.
Find out more:
Can I drive or ride a bike?
Yes, you can drive or ride a bike while taking carbocisteine.
Can I drink alcohol while taking carbocisteine?
Yes, you can drink alcohol while taking carbocisteine.
Is there any food or drink I need to avoid?
You can eat and drink normally while taking carbocisteine.