Aims The purpose of the study was to evaluate the usefulness of the “Managing Medicines for People with Dementia” (www.dementiameds.com) website for informal carers. Background The management of medications for individuals living with a dementia by informal carers is a neglected area of care. We know that informal carers find it difficult accessing reliable and comprehensive information about medications. We also know that the Internet is a contemporary and growing medium through which consumers access health information. This study was unique in that it brought these two elements together through an interdisciplinary study about the usefulness of a new website providing information on medication management. Methods Data collection consisted of focus groups with informal carers of individuals living with a dementia. Data were analysed through content analysis. Findings Four themes were generated from the data to explain the evaluation of the website by informal carers: (1) Suitability of the website (2) Presentation of the website (3) Unexpected benefits of the website content (4) Future enhancements for website. Participants overwhelmingly agreed the content of the website filled a gap in information needs about medication management for individuals living with a dementia. Implications for practice This qualitative evaluation demonstrated the value of the website as a resource for informal carers of individuals living with a dementia. The resource could also be used by community nurses and other healthcare practitioners to help informal carers better manage the medication regimes of individuals living with a dementia. The resource has the potential to reduce complications associated with mismanagement of medications and contribute to new policies for implementing safe medication practices.