The WHO Expert Committee on Selection and Use of Essential Medicines is responsible for reviewing and updating the WHO Essential Medicines List (EML). This committee consists of specialists in various therapeutic areas who evaluate the safety, efficacy, and cost-effectiveness of medicines. Their goal is to ensure that the EML reflects the most current evidence and addresses global public health needs. The committee meets periodically to assess new data and make recommendations for additions, deletions, or changes to the list, thus guiding countries in medicine procurement and use. National authorities, pharmaceutical companies, and financial institutions do not have the mandate to update the EML.

Reference: World Health Organization, WHO Model List of Essential Medicines, 23rd Edition.