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Dementia: Medicines to Treat Behavior Changes

Topic Overview

The decision to try medicine to treat behavior problems in Alzheimer's disease is different for each person. The decision weighs the risks and benefits of these medicines. Your doctor can help you decide. Medicines for behavior problems linked to dementia do not work very well for most people and may have serious risks.

Medicines can be used to treat behavior problems caused by Alzheimer's disease and other diseases that cause dementia. They should be used only after other nondrug approaches have failed to improve a person's symptoms. Medicine may be needed when the person is in danger of harming himself or herself or others or when the caregiver is unable to deal with the situation using other means.

Antipsychotic medicines

Antipsychotic medicines may help relieve more severe agitation or psychosis (disordered thought processes).

  • Low doses may make the person more comfortable by reducing certain symptoms, such as delusions, suspicion of others (paranoia), hallucinations, hostility, or agitation.
  • These medicines also may improve sleep.
  • The side effects may make some symptoms of Alzheimer's disease worse, such as apathy, withdrawal from family and friends, and inability to think clearly.
  • These are powerful medicines. They commonly cause dizziness, drowsiness, movement disorders that resemble Parkinson's disease, low blood pressure upon standing (orthostatic hypotension), and other side effects.

Examples of medicines sometimes used to treat hallucinations, paranoia, and severe agitation in people who have dementia include aripiprazole, haloperidol, and risperidone.

FDA advisory. The U.S. Food and Drug Administration (FDA) has issued an advisory stating that people with dementia who use antipsychotics may die sooner than those who don't use these drugs.

Antianxiety medicines

Antianxiety medicines, including minor tranquilizers, relieve anxiety and mild agitation and may help calm the person. But they can cause drowsiness if the dose is too high. When minor tranquilizers are needed, short-term or occasional use often is better than continuous use.

Lorazepam and oxazepam are minor tranquilizers sometimes used to treat the symptoms of dementia. Another antianxiety medicine called buspirone also can be tried.

  • These medicines may increase confusion and upset the person's balance. This raises the risk of falls.
  • A person may become dependent on these medicines over time, causing even worse symptoms when he or she suddenly stops taking them. To avoid this problem, these drugs usually are stopped gradually after a few weeks of use.

Anticonvulsant medicine

Anticonvulsant medicine, such as valproic acid, may be used to control agitation, violent behavior, and mood swings caused by dementia. But the U.S. Food and Drug Administration (FDA) has not approved this medicine for this specific problem.

The U.S. Food and Drug Administration (FDA) has issued a warning on anticonvulsants and the risk of suicide and suicidal thoughts. The FDA does not recommend that people stop using these medicines. Instead, people who take anticonvulsant medicine should be watched closely for warning signs of suicide. People who take anticonvulsant medicine and who are worried about this side effect should talk to a doctor.

Other medicines

Other medicines that may be used to treat agitation include antidepressants. Trazodone and serotonin reuptake inhibitors (SSRIs) such as citalopram, fluoxetine, and sertraline are examples. But research on the effectiveness of these medicines in Alzheimer's disease and other dementias is limited.

The U.S. Food and Drug Administration (FDA) has issued an advisory on antidepressant medicines and the risk of suicide. Talk to your doctor about these possible side effects and the warning signs of suicide.

See Drug Reference for more information about all of these medicines. (Drug Reference is not available in all systems.)

Related Information

Credits

ByHealthwise Staff
Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
Kathleen Romito, MD - Family Medicine
Specialist Medical ReviewerMyron F. Weiner, MD - Geriatric Psychiatry

Current as ofDecember 7, 2017


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