Medications are often prescribed to help keep blood pressure low, one of the best ways to avoid further strokes. Mixed dementia. Mixed dementia is a combination of two or more types of dementia. People with Alzheimer’s disease, for example, may experience a stroke that leaves them with more cognitive issues than the Alzheimer’s alone came with. Ask the Doctor About Medicine. The FDA hasn't approved any drugs for dementia-related psychosis. Doctors often prescribe atypical, or second-generation antipsychotics meant to help with ...May 11, 2023 · The effectiveness of Rexulti for the treatment of agitation associated with dementia due to Alzheimer’s disease was determined through two 12-week, randomized, double-blind, placebo-controlled ... Mainstream treatment does not greatly slow the progression of Alzheimers. Caregivers searching for alternative Alzheimer’s remedies may find greater hope in natural treatments, alternative therapies, preventative measures. These remedies are most effective in the early stages of Alzheimer’s disease, particularly at the onset of symptoms.Mainstream treatment does not greatly slow the progression of Alzheimers. Caregivers searching for alternative Alzheimer’s remedies may find greater hope in natural treatments, alternative therapies, preventative measures. These remedies are most effective in the early stages of Alzheimer’s disease, particularly at the onset of symptoms.Aug 30, 2023 · Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ... Common medications can cause dementia-like symptoms. Common prescription and over-the-counter medications called anticholinergics (anti-col-in-er-jikhear it) have side effects that can worsen existing Alzheimer’sdementia symptoms. This type of drug can even cause dementia-like symptoms cognitive impairment. start, stop, or adjust the dosage ... Cholinesterase Inhibitors. Aricept (donepezil): Approved for mild, moderate, and severe Alzheimer's. Adlarity (donepezil transdermal patch): Approved for mild, moderate, and severe Alzheimer's. Exelon (rivastigmine): Approved for mild to moderate Alzheimer's. Razadyne (galantamine): Approved for mild to moderate Alzheimer's.There may not be an obvious cause. But many times, there are triggers you can spot before or during a problem. Common ones include: Discomfort from lack of sleep, side effects from medication, or ... There are two types of medications approved to treat Alzheimer's: those that can temporarily ease some symptoms, and those that can slow the progression of the disease. Medications don't work for everyone, and they may lose effectiveness over time. They tend to be most effective for people with early to moderate Alzheimer's.The main use of cholinesterase inhibitors is for the treatment of dementia in patients with Alzheimer's disease. People with Alzheimer's disease have reduced levels of acetylcholine in the brain. Cholinesterase inhibitors have been shown to have a modest effect on dementia symptoms such as cognition.The most common treatment for depression in Alzheimer's involves a combination of medicine, counseling, and gradual reconnection to activities and people that bring happiness. Simply telling the person with Alzheimer's to "cheer up," "snap out of it" or "try harder" is seldom helpful.3 commonly prescribed cholinesterase inhibitors: Aricept (donepezil) is approved for all stages of Alzheimer’s. Exelon (rivastigmine) is approved for mild to moderate Alzheimer’s. Razadyne (galantamine) is approved for mild to moderate Alzheimer’s. Side effects include nausea, vomiting, loss of appetite, and increased frequency of bowel ... Ask the Doctor About Medicine. The FDA hasn't approved any drugs for dementia-related psychosis. Doctors often prescribe atypical, or second-generation antipsychotics meant to help with ... The first line of treatment for the behavioral symptoms of Alzheimer's is non-drug approaches, but if these strategies fail and symptoms are severe, medication may be appropriate. While antipsychotic medications can be effective in some situations, they are associated with an increased risk of stroke and death in older adults with dementia and ...As a result of FDA’s approval of Aduhelm, patients with Alzheimer’s disease have an important and critical new treatment to help combat this disease. FDA will continue to monitor Aduhelm as it ...The Food and Drug Administration on Thursday fully approved the Alzheimer’s drug Leqembi, amid concerns about its safety, cost and accessibility. The move marks the first time that a drug meant ...Treatments. There's no cure for Alzheimer’s, but there are treatments that may change disease progression, and drug and non-drug options that may help treat symptoms. Understanding available options can help individuals living with the disease and their caregivers to cope with symptoms and improve quality of life. Jun 7, 2021 · June 07, 2021. Today, the U.S. Food and Drug Administration approved Aduhelm (aducanumab) for the treatment of Alzheimer’s, a debilitating disease affecting 6.2 million Americans. Aduhelm was ... As a result of FDA’s approval of Aduhelm, patients with Alzheimer’s disease have an important and critical new treatment to help combat this disease. FDA will continue to monitor Aduhelm as it ...It's characterized by changes in the brain that lead to deposits of certain proteins. Alzheimer's disease causes the brain to shrink and brain cells to eventually die. Alzheimer's disease is the most common cause of dementia — a gradual decline in memory, thinking, behavior and social skills. These changes affect a person's ability to function.In 2023, the U.S. Food and Drug Administration (FDA) approved lecanemab (Leqembi) for people with mild Alzheimer's disease and mild cognitive impairment due to Alzheimer's disease. A phase 3 clinical trial found that the medicine slowed cognitive decline in people with early Alzheimer's disease.Sep 6, 2023 · Overview of using medications to treat anxiety in Alzheimer's patients. Medications for treating anxiety. Anxiety symptoms are fairly common among patients with Alzheimer's Disease (AD). Such symptoms are likely to make patient care more problematic and, therefore, increase the risk of nursing home placement. Alzheimer disease most commonly affects older adults, but it can also affect people in their 30s or 40s. When Alzheimer disease occurs in someone under age 65, it is known as early-onset (or younger-onset) Alzheimer disease. A very small number of people with Alzheimer disease have the early-onset form. Many of them are in their 40s and 50s ...Sep 16, 2020 · A new study suggests anticholinergic medications may increase the risk of accelerated cognitive decline, especially in older adults at high risk of developing Alzheimer’s disease. A recent study ... The most common treatment for depression in Alzheimer's involves a combination of medicine, counseling, and gradual reconnection to activities and people that bring happiness. Simply telling the person with Alzheimer's to "cheer up," "snap out of it" or "try harder" is seldom helpful. Get a copy Order by post. There are four medications approved in the UK to ease a person’s dementia symptoms, including memory and thinking problems: donepezil. rivastigmine. galantamine. memantine. These treatments are only effective for people with Alzheimer’s disease, dementia with Lewy bodies, Parkinson’s disease dementia, and mixed ...In 2023, the U.S. Food and Drug Administration (FDA) approved lecanemab (Leqembi) for people with mild Alzheimer's disease and mild cognitive impairment due to Alzheimer's disease. A phase 3 clinical trial found that the medicine slowed cognitive decline in people with early Alzheimer's disease.Overview of using medications to treat anxiety in Alzheimer's patients. Medications for treating anxiety. Anxiety symptoms are fairly common among patients with Alzheimer's Disease (AD). Such symptoms are likely to make patient care more problematic and, therefore, increase the risk of nursing home placement.Common medications can cause dementia-like symptoms. Common prescription and over-the-counter medications called anticholinergics (anti-col-in-er-jikhear it) have side effects that can worsen existing Alzheimer’sdementia symptoms. This type of drug can even cause dementia-like symptoms cognitive impairment. start, stop, or adjust the dosage ... The main use of cholinesterase inhibitors is for the treatment of dementia in patients with Alzheimer's disease. People with Alzheimer's disease have reduced levels of acetylcholine in the brain. Cholinesterase inhibitors have been shown to have a modest effect on dementia symptoms such as cognition.Feb 18, 2022 · However, there is hope for an Alzheimer’s cure breakthrough 2022. Currently, Aducanumab is only approved for use in select patients with mild cognitive impairment or early Alzheimer’s disease. Before the treatment can be administered, all individuals with AD must undergo a PET scan to determine if they have amyloid plaques. Galantamine (Razadyne): This drug is used to prevent or slow the symptoms of mild to moderate AD. It comes as a tablet, extended-release capsule, or oral solution (liquid). Memantine (Namenda ...Lecanemab and aducanumab are immunotherapies with FDA Accelerated Approval to treat early Alzheimer’s. These drugs target the protein beta-amyloid to help reduce amyloid plaques, one of the hallmark brain changes in Alzheimer’s.Aug 11, 2023 · Common side effects of donepezil may include: nausea, vomiting, diarrhea; loss of appetite; muscle pain; sleep problems ( insomnia ); or. feeling tired. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. Jun 7, 2021 · The Food and Drug Administration on Monday approved Biogen ’s Alzheimer’s disease drug aducanumab, making it the first medication cleared by U.S. regulators to slow cognitive decline in people ... Aug 30, 2023 · Expertise and rankings. Each year, Mayo Clinic doctors care for more than 1,900 people with Alzheimer's disease. The Mayo Clinic Alzheimer's Disease Research Center is jointly based in Rochester, Minnesota, and Jacksonville, Florida. These facilities — two of 33 centers designated and funded by the National Institute on Aging — enable Mayo ... Jan 12, 2022 · It is weighing the benefits versus the risks associated with Aduhelm and similar Alzheimer’s medications, including headaches, dizziness, falls and brain bleeds, said Dr. Lee Fleisher, CMS ... In June 2021, the Food and Drug Administration approved Aduhelm (aducanumab) as another option to treat Alzheimer’s disease. Aduhelm is the first new drug approved for the disease since 2003 as well as the first to specifically target amyloid-beta, the protein researchers widely believe to play a role in the development of Alzheimer's.3 commonly prescribed cholinesterase inhibitors: Aricept (donepezil) is approved for all stages of Alzheimer’s. Exelon (rivastigmine) is approved for mild to moderate Alzheimer’s. Razadyne (galantamine) is approved for mild to moderate Alzheimer’s. Side effects include nausea, vomiting, loss of appetite, and increased frequency of bowel ... The cholinesterase inhibitors are the main first-line treatment for Alzheimer’s disease. These drugs attempt to make up for depleted levels of acetylcholine. For moderate to severe disease, doctors often add the NMDA receptor drug. Researchers are still exploring the exact role of the new MAB drug. Aducanumab (Aduhelm) is a MAB and is the ...Compare risks and benefits of common medications used for Alzheimer's Disease. Find the most ... The Food and Drug Administration on Monday approved Biogen 's Alzheimer's disease drug aducanumab, making it the first medication cleared by U.S. regulators to slow cognitive decline in people ...The Food and Drug Administration on Thursday fully approved the Alzheimer’s drug Leqembi, amid concerns about its safety, cost and accessibility. The move marks the first time that a drug meant ...Manage medications. Some antidepressant medications, such as bupropion and venlafaxine, can lead to insomnia. Cholinesterase inhibitors, such as donepezil, can improve cognitive and behavioral symptoms in people with Alzheimer's but also can cause insomnia. If the person with dementia is taking these kinds of medications, talk to the doctor.The first line of treatment for the behavioral symptoms of Alzheimer's is non-drug approaches, but if these strategies fail and symptoms are severe, medication may be appropriate. While antipsychotic medications can be effective in some situations, they are associated with an increased risk of stroke and death in older adults with dementia and ...The FDA has approved medications that fall into two categories: drugs that change disease progression in people living with early Alzheimer's disease, and drugs that may temporarily mitigate some symptoms of Alzheimer's dementia.There are two types of medications approved to treat Alzheimer's: those that can temporarily ease some symptoms, and those that can slow the progression of the disease. Medications don't work for everyone, and they may lose effectiveness over time. They tend to be most effective for people with early to moderate Alzheimer's.The Food and Drug Administration on Monday approved Biogen 's Alzheimer's disease drug aducanumab, making it the first medication cleared by U.S. regulators to slow cognitive decline in people ...Ask the Doctor About Medicine. The FDA hasn't approved any drugs for dementia-related psychosis. Doctors often prescribe atypical, or second-generation antipsychotics meant to help with ...Manage medications. Some antidepressant medications, such as bupropion and venlafaxine, can lead to insomnia. Cholinesterase inhibitors, such as donepezil, can improve cognitive and behavioral symptoms in people with Alzheimer's but also can cause insomnia. If the person with dementia is taking these kinds of medications, talk to the doctor.Aug 31, 2023 · Read the latest research on Alzheimer's disease. Learn about Alzheimer's symptoms such as memory loss and senile dementia. Find out about Alzheimer's stages, causes and new treatments. Aug 31, 2023 · Read the latest research on Alzheimer's disease. Learn about Alzheimer's symptoms such as memory loss and senile dementia. Find out about Alzheimer's stages, causes and new treatments. Even though the chief cause of behavioral symptoms is the effect of Alzheimer's disease on the brain, an examination may reveal other treatable conditions that are contributing to the behavior. Contributing conditions may include: Drug side effects. Many people with Alzheimer's take prescription medications for other health issues. Jan 12, 2022 · It is weighing the benefits versus the risks associated with Aduhelm and similar Alzheimer’s medications, including headaches, dizziness, falls and brain bleeds, said Dr. Lee Fleisher, CMS ... Alzheimer disease is the most common form of dementia, affecting more than one-third of Americans older than 85 years. It is characterized by progressive memory loss and cognitive decline. Amyloid ...Aug 3, 2022 · Treatments for Alzheimer’s Disease. Learn more about initial patient support strategies, the latest approved drugs to slow the disease’s progress, and the status of new clinical trials. Medications for agitation. Brexpiprazole (Rexulti®) is an FDA-approved atypical antipsychotic for agitation associated with dementia due to Alzheimer’s. Atypical antipsychotics are a group of antipsychotic drugs that target the serotonin and dopamine chemical pathways in the brain. The most common treatment for depression in Alzheimer's involves a combination of medicine, counseling, and gradual reconnection to activities and people that bring happiness. Simply telling the person with Alzheimer's to "cheer up," "snap out of it" or "try harder" is seldom helpful.Aug 30, 2023 · While Alzheimer's drugs don't cure the disease, they can improve quality of life and help prolong independence. There are two types of medications approved to treat Alzheimer's: those that can temporarily ease some symptoms, and those that can slow the progression of the disease. Ask the Doctor About Medicine. The FDA hasn't approved any drugs for dementia-related psychosis. Doctors often prescribe atypical, or second-generation antipsychotics meant to help with ... These medicines include: Donepezil ( Aricept) Galantamine ( Razadyne, Razadyne ER, Reminyl) Rivastigmine ( Exelon) What to expect: Most people with Alzheimer’s who take one of these medications ...It's characterized by changes in the brain that lead to deposits of certain proteins. Alzheimer's disease causes the brain to shrink and brain cells to eventually die. Alzheimer's disease is the most common cause of dementia — a gradual decline in memory, thinking, behavior and social skills. These changes affect a person's ability to function.The late stage of Alzheimer's disease may last from several weeks to several years. As the disease progresses, intensive, around-the-clock care is usually required. What to expect. Bowel and bladder function. Your role as caregiver. Skin and body health. Late-stage care options. Infections and pneumonia. Food and fluids.Aug 30, 2023 · Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ... Evidence Summary. A 2018 meta-analysis examining medications used to alleviate agitation in all types of dementia included 36 RCTs with a total of 5,585 participants (mean age = 81.8 years ± 4.9 ... Aug 11, 2023 · Common side effects of donepezil may include: nausea, vomiting, diarrhea; loss of appetite; muscle pain; sleep problems ( insomnia ); or. feeling tired. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. Aug 30, 2023 · Infections and immune disorders. Dementia-like symptoms can result from a fever or other side effects of the body's attempt to fight off an infection. Multiple sclerosis and other conditions caused by the body's immune system attacking nerve cells also can cause dementia. Metabolic or endocrine problems. Manage medications. Some antidepressant medications, such as bupropion and venlafaxine, can lead to insomnia. Cholinesterase inhibitors, such as donepezil, can improve cognitive and behavioral symptoms in people with Alzheimer's but also can cause insomnia. If the person with dementia is taking these kinds of medications, talk to the doctor.Cholinesterase Inhibitors. Aricept (donepezil): Approved for mild, moderate, and severe Alzheimer's. Adlarity (donepezil transdermal patch): Approved for mild, moderate, and severe Alzheimer's. Exelon (rivastigmine): Approved for mild to moderate Alzheimer's. Razadyne (galantamine): Approved for mild to moderate Alzheimer's.Aug 30, 2022 · Antipsychotic medications can treat dementia symptoms such as aggression or psychosis. But these drugs can cause serious side effects. ... Alzheimer’s disease is the most common form of dementia ... Family members often want their loved one to continue on dementia meds. Alzheimer’s advocate Meryl Comer, who cared for her husband with early onset AD at home throughout his illness (see Aug 2014 news story), noted that the drugs seemed to help control his symptoms. “Memantine made him more cooperative, and that made the difference between ... Dec 14, 2021 · Published December 14, 2021. Scientists may have discovered a new use for a drug commonly prescribed to treat erectile dysfunction. A study led by experts at the Cleveland Clinic found that taking sildenafil (brand name Viagra) could dramatically reduce a person’s risk of developing Alzheimer’s disease, though more research is needed. Possible Side Effects. Donepezil (Aricept ®) Yes. All stages of dementia (not recommended in FTD) Nausea, diarrhea, vomiting, upset stomach, lack of hunger, weight loss or low heart rate. Other less common problems are feeling tired, having trouble sleeping, vivid dreams or muscle cramps. Rivastigmine (Exelon ®) Yes. Treatments. There's no cure for Alzheimer’s, but there are treatments that may change disease progression, and drug and non-drug options that may help treat symptoms. Understanding available options can help individuals living with the disease and their caregivers to cope with symptoms and improve quality of life. 3 commonly prescribed cholinesterase inhibitors: Aricept (donepezil) is approved for all stages of Alzheimer’s. Exelon (rivastigmine) is approved for mild to moderate Alzheimer’s. Razadyne (galantamine) is approved for mild to moderate Alzheimer’s. Side effects include nausea, vomiting, loss of appetite, and increased frequency of bowel ... Huperzine A. Huperzine A (pronounced HOOP-ur-zeen) is a moss extract that has been used in traditional Chinese medicine for centuries. It has properties similar to those of cholinesterase inhibitors, one class of FDA-approved Alzheimer's medications. As a result, it is promoted as a treatment for Alzheimer's disease.Aug 30, 2023 · Expertise and rankings. Each year, Mayo Clinic doctors care for more than 1,900 people with Alzheimer's disease. The Mayo Clinic Alzheimer's Disease Research Center is jointly based in Rochester, Minnesota, and Jacksonville, Florida. These facilities — two of 33 centers designated and funded by the National Institute on Aging — enable Mayo ... Antipsychotic medications can treat dementia symptoms such as aggression or psychosis. But these drugs can cause serious side effects. ... Alzheimer’s disease is the most common form of dementia ...There are three drugs of this type: donepezil ( Aricept ), galantamine ( Razadyne ), and rivastigmine ( Exelon ). Aricept is the only treatment approved by the FDA for all stages of Alzheimer’s ...Aricept (donepezil) as low as. $13. View other Cholinesterase Inhibitors. Donepezil (Aricept) is an inexpensive drug used to treat mild to moderate dementia caused by Alzheimer's disease. It is more popular than comparable drugs. It is available in generic and brand versions. Jun 7, 2021 · June 07, 2021. Today, the U.S. Food and Drug Administration approved Aduhelm (aducanumab) for the treatment of Alzheimer’s, a debilitating disease affecting 6.2 million Americans. Aduhelm was ... Alzheimer’s disease causes a decline in memory, thinking, learning and organizing skills over time. It’s the most common cause of dementia and usually affects people over the age of 65. There’s no cure for Alzheimer’s, but certain medications and therapies can help manage symptoms temporarily. Symptoms and Causes.There are three drugs of this type: donepezil ( Aricept ), galantamine ( Razadyne ), and rivastigmine ( Exelon ). Aricept is the only treatment approved by the FDA for all stages of Alzheimer’s ... Aug 3, 2022 · Treatments for Alzheimer’s Disease. Learn more about initial patient support strategies, the latest approved drugs to slow the disease’s progress, and the status of new clinical trials. Jun 15, 2011 · Alzheimer disease affects approximately 5.4 million Americans and accounts for most cases of dementia. 1 Like other types of dementia, it is characterized by progressive memory loss and cognitive ... Even though the chief cause of behavioral symptoms is the effect of Alzheimer's disease on the brain, an examination may reveal other treatable conditions that are contributing to the behavior. Contributing conditions may include: Drug side effects. Many people with Alzheimer's take prescription medications for other health issues.
Jan 22, 2021 · Treatment for Alzheimer's disease, the devastating condition that affects more than 5 million Americans, has remained notoriously elusive for decades. Now, a small study released by drug company Eli Lilly offers at least a flicker of hope: It shows that the experimental drug donanemab may significantly slow patients’ cognitive decline. . Wxo
There may not be an obvious cause. But many times, there are triggers you can spot before or during a problem. Common ones include: Discomfort from lack of sleep, side effects from medication, or ... Manage medications. Some antidepressant medications, such as bupropion and venlafaxine, can lead to insomnia. Cholinesterase inhibitors, such as donepezil, can improve cognitive and behavioral symptoms in people with Alzheimer's but also can cause insomnia. If the person with dementia is taking these kinds of medications, talk to the doctor.There are three drugs of this type: donepezil ( Aricept ), galantamine ( Razadyne ), and rivastigmine ( Exelon ). Aricept is the only treatment approved by the FDA for all stages of Alzheimer’s ... Jan 5, 2022 · Overview of using medications to treat Alzheimer's patients with sleep problems. Drugs for treating sleep disturbance. Sleep problems, especially persistent wakefulness and night-time restlessness, can be distressing for the person with dementia or Alzheimer's Disease and disturbing for caregivers. The FDA has approved medications that fall into two categories: drugs that change disease progression in people living with early Alzheimer's disease, and drugs that may temporarily mitigate some symptoms of Alzheimer's dementia.Aug 31, 2023 · Read the latest research on Alzheimer's disease. Learn about Alzheimer's symptoms such as memory loss and senile dementia. Find out about Alzheimer's stages, causes and new treatments. Aug 30, 2023 · Infections and immune disorders. Dementia-like symptoms can result from a fever or other side effects of the body's attempt to fight off an infection. Multiple sclerosis and other conditions caused by the body's immune system attacking nerve cells also can cause dementia. Metabolic or endocrine problems. Aug 3, 2022 · Treatments for Alzheimer’s Disease. Learn more about initial patient support strategies, the latest approved drugs to slow the disease’s progress, and the status of new clinical trials. Sep 27, 2021 · The cholinesterase inhibitors are the main first-line treatment for Alzheimer’s disease. These drugs attempt to make up for depleted levels of acetylcholine. For moderate to severe disease, doctors often add the NMDA receptor drug. Researchers are still exploring the exact role of the new MAB drug. Aducanumab (Aduhelm) is a MAB and is the ... Sep 16, 2020 · A new study suggests anticholinergic medications may increase the risk of accelerated cognitive decline, especially in older adults at high risk of developing Alzheimer’s disease. A recent study ... EVIDENCE-BASED ANSWER. ATYPICAL ANTIPSYCHOTICS ARE EFFECTIVE; so are selective serotonin reuptake inhibitors (SSRIs), and they may be safer. Atypical antipsychotics are an effective short-term (6-12 weeks) treatment for aggressive behavior in patients with Alzheimer’s disease because they consistently decrease aggression scores (strength of recommendation [SOR]: A, multiple randomized ...For sleep changes due primarily to Alzheimer’s disease, there are non-drug and drug approaches to treatment. Most experts and the National Institutes of Health (NIH) strongly encourage use of non-drug measures rather than medication. Studies have found that sleep medications generally do not improve overall sleep quality for older adults.It's characterized by changes in the brain that lead to deposits of certain proteins. Alzheimer's disease causes the brain to shrink and brain cells to eventually die. Alzheimer's disease is the most common cause of dementia — a gradual decline in memory, thinking, behavior and social skills. These changes affect a person's ability to function.The FDA has approved medications that fall into two categories: drugs that change disease progression in people living with early Alzheimer's disease, and drugs that may temporarily mitigate some symptoms of Alzheimer's dementia.Aug 30, 2022 · Antipsychotic medications can treat dementia symptoms such as aggression or psychosis. But these drugs can cause serious side effects. ... Alzheimer’s disease is the most common form of dementia ... .