IRCT20100126003181N4 IRCT 2018-03-01 Tehran University of Medical Sciences Effect of Riluzole on Alzheimer's Disease Effect of Riluzole on cognitive function of patients with mild Alzheimers disease: a double-blind randomized clinical trial, placebo-controlled 2018-04-21 anticipated 48 Complete https://irct.ir/trial/29498 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization will be done by 4 block size, Blinding description: Since the placebo is exactly the same as the original medicine, and when informed consent is informed, the patient is randomly assigned to one of the drug or placebo groups, so the patient is not aware of the type of medication. Also, the main investigator who examined the initial outcome will be blind to patient's drug type, because the allocation is done by Secretary of the clinic. 3 Alzheimer Disease. Intervention 1: Intervention group: Riluzole 50 mg oral tablet twice daily for three months. Intervention 2: Control group: Placebo (similar to the original drug) oral twice daily for three months. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is The files will be sent privately by request