Used primarily in the treatment of mild to moderate Alzheimer's disease, it functions as a reversible acetylcholinesterase inhibitor, helping to increase acetylcholine levels in the brain, which supports cognitive function and memory. It also acts as an allosteric modulator of nicotinic acetylcholine receptors, enhancing cholinergic transmission. Due to these dual mechanisms, it is effective in improving mental performance and slowing disease progression in some patients. Additionally, it has been explored for use in other neurological conditions such as vascular dementia and post-stroke cognitive impairment.