About memantine Who can and cannot take it How and when to take it Side effects Pregnancy, breastfeeding and fertility Taking memantine with other medicines and herbal supplements Common questions Related conditions Alzheimer's disease Dementia with Lewy bodies Parkinson's disease Useful resources Alzheimer's Society: charity www.alzheimers.org.uk Alzheimer's Society: forum on dementia forum.alzheimers.org.uk Dementia UK: charity www.dementiauk.org Parkinson's UK: charity www.parkinsons.org.uk