A randomised double‐blind placebo‐controlled trial of folic acid supplementation of cholinesterase inhibitors in Alzheimer's disease

(1) to assess the effect of 1 mg folic acid supplementation of cholinesterase inhibitors (ChI) in a 6 month double‐blind placebo‐controlled study of patients with Alzheimer's Disease (AD) and (2) to assess whether outcome measures were affected by changes in homocysteine levels.