A consumer medicine information (CMI) leaflet gives you important, easy-to-read information about a particular medicine. CMI leaflets are generally available for medicines prescribed by your doctor and for medicines you can buy only from a pharmacy. They are not usually provided for everyday products sold through general retail outlets such as supermarkets.
Reading the CMI helps you understand how to take your medicine safely. It explains possible side effects and how the medicine might interact with other medicines, foods or substances such as alcohol. The leaflet is designed to give you accurate, plain-language information about both the safety of your medicine and the best way to use it.
The company that makes the medicine prepares the CMI, and it must meet recognised standards for accuracy and clear, consumer-friendly language. This helps ensure the information is reliable and easy to understand.
Make sure you have the right leaflet#
Some medicines come in more than one formulation or strength, and each version has its own CMI. The brand name is printed at the top of the leaflet in large letters and should match the name on the box, so check that the two agree before you rely on the information.
Read the CMI before you start taking your medicine so you know what to expect. You can also refer back to it during treatment to check for side effects and possible interactions, and to find out what to do if you miss a dose.
Using the leaflet safely#
If you have any questions about your medicine, or about how to read the CMI, speak with your doctor or pharmacist. Do not change your dose or make treatment decisions on your own based only on what you read in the leaflet.
If you have any concerns, check with your doctor or pharmacist. For example, some medicines are not recommended during pregnancy or for children under a certain age.
What a CMI leaflet includes#
CMI leaflets are generally set out in a consistent way and include information such as:
- the brand name, shown at the top in large letters
- the active ingredient, usually listed under the brand name
- what the medicine is used for
- how to take it, including what to do if you miss a dose or take too much
- what can happen while you are taking it, including possible side effects
- safe storage and disposal
- contact details for the manufacturer
How to find a CMI leaflet#
You can obtain the CMI for your medicine in several ways:
- ask your pharmacist to print a copy for you
- check inside the medicine box, where a leaflet is often included
- search for it online, or contact the company that makes the medicine
Key points#
- A consumer medicine information (CMI) leaflet gives you important information about your medicine.
- Reading the leaflet helps you understand how to take your medicine safely, including side effects and possible interactions.
- Do not change your dose or make treatment decisions based only on your own reading of the CMI; ask your doctor or pharmacist if you have questions.
Where to get help#
Sources & further reading
For evidence-based global guidance on this topic, consult authoritative public-health bodies such as the World Health Organization (WHO), CDC, NHS, and ECDC.