People who work in medical information provide evaluated, balanced information and advice on clinical aspects of medicines to doctors, nurses, pharmacists and other healthcare professionals. They use published literature and confidential company data to provide the information and advice.

They also provide information to other people within their company, such as medical, marketing, sales or NHS liaison staff. They are often responsible for checking advertising and promotional material against the ABPI Code of Practice for the Pharmaceutical Industry. They may also be involved in monitoring drug safety and reporting suspected adverse reactions to company products to the regulatory authorities.

Some people working in medical information provide information in response to a specific question asked by a healthcare professional. The question is researched and the relevant papers collated, to answer the enquiry in a fair and balanced way. The findings are summarised in a letter and relevant highlights are presented, by appointment, to the healthcare professional face-to-face.