Approved Treatments for Alzheimer's Disease

Aduhelm

Aduhelm (aducanumab) is an antibody that preferentially binds to the aggregated beta-amyloid by targeting an epitope that is not normally accessible in the beta-amyloid-beta monomer. Approved by the U.S. Food and Drug Administration in June 2021, it is the first disease-modifying therapy approved for Alzheimer’s. It is administered via intravenous infusion every four weeks.

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Aricept

Aricept (donepezil) is an oral medication approved for patients in all stages of Alzheimer’s to treat dementia symptoms. It is a reversible inhibitor of an enzyme — a catalyst that can trigger a chemical reaction — called acetylcholinesterase. Aricept is thought to increase acetylcholine levels in the brain by preventing its breakdown. This can increase the communication between remaining healthy nerve cells in the brain and provide a temporary reprieve from dementia by improving cognition and function.

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Exelon

Exelon (rivastigmine) is a type of cholinesterase inhibitor that manages the symptoms of Alzheimer’s disease by reversibly blocking the function of acetylcholinesterase. By inhibiting this enzyme, it prevents the breakdown of the neurotransmitter acetylcholine and increases its levels in the brain. This can provide a temporary relief for some of the symptoms of Alzheimer’s by improving the communication between nerve cells in the brain.

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Namenda

Namenda (memantine) is an approved medicine for the treatment of moderate to severe Alzheimer’s disease. When nerve cells are damaged, it is believed that some start to release excess glutamate, leading to too much calcium entering cells. Namenda works to block glutamate, which is involved in learning and memory, from accessing NMDA receptors, preventing excessive calcium from entering cells and causing damage.

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Namzaric

Namzaric (donepezil and memantine) is an approved therapy for moderate to severe Alzheimer’s disease. Namzaric is a combination of Aricept and Namenda. Donepezil offers a temporary reprieve from Alzheimer’s symptoms by improving the communication between nerve cells in the brain that are still healthy, while memantine regulates glutamate, which damaged nerve cells produce in abnormally high amounts.

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Nuedexta

Nuedexta is a combination of dextromethorphan and quinidine approved to treat uncontrollable episodes of laughing or crying, a condition known as the pseudobulbar affect (PBA). Scientists believe dextromethorphan blocks certain neuronal pathways that regulate rapid, exaggerated mood swings and related behaviors, which alleviates PBA symptoms and agitation. Quinidine helps increase the amount of dextromethorphan available in the blood, enhancing the combo therapy’s benefits.

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Razadyne

Razadyne (galantamine) is designed to slow the progression of symptoms in mild to moderate Alzheimer’s disease. The therapy acts to reversibly block acetylcholinesterase, which allows for an increase in levels of acetylcholine, an essential neurotransmitter involved in learning, thinking, and memory processes. This improves communication between nerve cells and can alleviate some symptoms of the disease.

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