Colomycin® (colistimethate sodium)

This information is only for patients who have been prescribed Colomycin® (colistimethate sodium)

Colomycin® contains the active substance colistimethate sodium. Colistimethate sodium is an antibiotic. It belongs to a group of antibiotics that are called polymyxins.

Colomycin® is given by injection to treat some types of serious infections caused by certain bacteria. Colomycin® is used when other antibiotics are not suitable.

Colomycin® is given as an inhalation to treat chronic chest infections in patients with cystic fibrosis. Colomycin® is used when these infections are caused by a specific bacteria called Pseudomonas aeruginosa.

For more information please refer to the Patient Information

Colomycin® (colistimethate sodium) - Patient Information Leaflet Colomycin® (colistimethate sodium) - Patient Guide

Colomycin® (colistimethate sodium) for nebulisation patient video

Understanding your Patient Information Leaflet

Within the original packaging of all regulated medicines, you will find an important document called the Patient Information Leaflet. We recommend you read this document carefully and keep it for future reference.

The Patient Information Leaflet gives you key information to help you get the desired results from your medicine. Reading the Patient Information Leaflet is designed to supplement – not replace – discussions with your doctor, pharmacist or other healthcare professional about the medication. 

If for any reason your medicine has not come with this leaflet, you can ask for one from your pharmacist. Patient Information Leaflets are also available to download from Teva’s product list.

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Get in touch with Teva

We're here to assist patients and healthcare professionals with information about our medicines, devices and services.

Teva UK Medical Information

Our Medical Information Service can help with enquiries about Teva's medicines, devices and services.

Tel: 0207 540 7117 

They can also provide copies of regulatory documents such as Patient Information Leaflets, or Summary of Product Characteristics. These documents are also available to download from Teva’s product list.

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Reporting Suspected Side Effects

For patients taking a Teva medicine: If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the Patient Information Leaflet. By reporting side effects you can help provide more information on the safety of a medicine.

Side effects can be reported to Teva:
Tel: 0207 540 7117
Online: Side Effect Reporting Form

You can also report side effects via the Yellow Card Scheme at

Life Effects™ - By patients, for patients

The only people who really know what you’re going through are other patients like you. Through Teva’s Life Effects™ website you can read stories, tips and real life experiences from other patients living with respiratory conditions.

Discover more Life Effects™ - By patients, for patients
Date of preparation: November 2022
Reference: CLM-GB-NP-00004