Alzheimer's drug U-turn: Your comments
Hundreds of thousands more patients in the early stages of Alzheimer's disease could get drug treatments following a U-turn by the health watchdog.
The National Institute for Health and Clinical Excellence, covering England and Wales, now says evidence backs the use of drugs for "mild" symptoms.
The availability of drugs for the condition on the NHS has been source of controversy for almost a decade.
BBC News website readers have been sending in their comments.