Current Alzheimer's medications can help for a time with memory symptoms and other cognitive changes. Two types of drugs are currently used to treat cognitive symptoms:
Cholinesterase inhibitors. These drugs work by boosting levels of a cell-to-cell communication by providing a neurotransmitter (acetylcholine) that is depleted in the brain by Alzheimer's disease. The improvement is modest. Cholinesterase inhibitors can improve neuropsychiatric symptoms, such as agitation or depression, as well.
Commonly prescribed cholinesterase inhibitors include donepezil (Aricept), galantamine (Razadyne) and rivastigmine (Exelon). The main side effects of these drugs include diarrhea, nausea, loss of appetite and sleep disturbances. In people with cardiac conduction disorders, serious side effects may include a slow heart rate and heart block.
Memantine (Namenda). This drug works in another brain cell communication network and slows the progression of symptoms with moderate to severe Alzheimer's disease. It's sometimes used in combination with a cholinesterase inhibitor. Side effects may include constipation, dizziness and headache.
Sometimes other medications such as antidepressants are used to help control the behavioral symptoms associated with Alzheimer's disease. But some medications should only be used with great caution. For example, some common sleep medications — zolpidem (Ambien), eszopiclone (Lunesta) and others — may increase confusion and the risk of falls.
Anti-anxiety medications — clonazepam (Klonopin) and lorazepam (Ativan) — increase the risk of falls, confusion and dizziness. Always check with your doctor before taking any new medications.
More information: https://www.drugs.com/mcd/alzheimer-s-disease
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