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Adobe Reader | Tardive Dyskinesia
 
		  
			
				Tardive dyskinesia is a movement disorder that can develop if you take 
		an antipsychotic medication and/or other types of medications. It’s 
		typically not reversible, but treatment may help manage the symptoms.   
 
		Overview
		  
			
				What is tardive dyskinesia?Tardive dyskinesia (TD) is a neurological syndrome that involves 
		involuntary (out of your control) movements. Taking
		antipsychotic (neuroleptic) medications is the main cause of this 
		condition. But other medications can cause it as well. “Tardive” means delayed or late. “Dyskinesia” refers to involuntary 
		muscle movements. With this condition, there’s typically a delay between 
		when you start a medication and when you develop dyskinesia. Many people 
		take a medication for years before developing the condition. But you can 
		also develop TD after short-term medication use. TD after short-term 
		medication use is more likely to happen to people over 65. How common is tardive dyskinesia?Researchers estimate that at least 20% of all people who take 
		first-generation antipsychotic medications develop tardive dyskinesia. 
		There aren’t as many studies on the other medications that can cause the 
		condition, so it’s difficult to estimate how frequently they result in 
		tardive dyskinesia. 
		  
 
		Symptoms and Causes
		  
			
				What are the symptoms of tardive dyskinesia?Tardive dyskinesia causes involuntary movements of your: 
					Facial muscles.Tongue.Neck.Trunk muscles.Limbs. Facial involuntary movements may include: 
					Lip-smacking or making sucking motions with your mouth.Grimacing or frowning.Sticking your tongue out or against the inside of your cheek.Chewing movements.Puffing your cheeks.Rapid eye blinking (blepharospasm). Other involuntary movements may include: 
					Making repetitive finger movements like you’re playing the piano.Thrusting or rocking your pelvis.Walking with a duck-like gait.Inability to remain physically still (akathisia). These symptoms can range from mild and barely noticeable to severe. Healthcare providers may describe these symptoms as: 
					Dystonia (uncontrollable muscle contractions).Myoclonus (brief, sudden muscle movement).Buccolingual stereotypy (repetitive movements of your mouth).Tics (habitual contractions of your muscles, often in your 
			face). What causes tardive dyskinesia?Researchers don’t know the exact cause of tardive dyskinesia. But the 
		main theory is that it can develop due to the use of
		dopamine receptor-blocking medications (dopamine 
		antagonists). This includes short-term and long-term use of the 
		medications, though it’s more likely to develop after long-term use. TD 
		can also happen after discontinuation of, a change in or reduction in 
		medications. Dopamine antagonists block dopamine for a long time. This may make the 
		dopamine receptors in your brain extra sensitive, especially in your 
		basal ganglia (a part of your brain that helps control movement). Excess 
		dopamine (a neurotransmitter) — or extra sensitive receptors — leads to 
		involuntary movements. In addition to dopamine, other neurotransmitter receptors may be 
		involved in the condition, including serotonin, acetylcholine and GABA. 
		This may explain why medications other than antipsychotics can 
		occasionally lead to tardive dyskinesia. What drugs cause tardive dyskinesia?Tardive dyskinesia can develop due to exposure to the following 
		medications: 
					Antipsychotic medications (neuroleptics).Metoclopramide or other anti-nausea medications.Certain
			antidepressants. In rare cases, TD may also develop due to other medications: 
					Lithium.Antiseizure medications.Antihistamines, specifically
			hydroxyzine.Antimalarials. Antipsychotic medications and TDAntipsychotic medications (neuroleptics) mainly treat
		psychosis-related conditions, like
		schizophrenia. These medications are the most common cause of 
		tardive dyskinesia. First-generation (“typical”) antipsychotics are considered more likely 
		to cause tardive dyskinesia than second-generation (“atypical”) 
		antipsychotics. Examples of first-generation antipsychotics include: 
					Chlorpromazine.Fluphenazine.Haloperidol.Perphenazine.Prochlorperazine.Thioridazine.Trifluoperazine. Metoclopramide and tardive dyskinesiaMetoclopramide is a medication that can relieve
				GERD (chronic acid reflux). It can also help treat diabetes-related
		gastroparesis. Metoclopramide is strongly linked to TD. Risk factors for developing 
		metoclopramide-induced TD include: 
					Being 65 or older.Being
			female.Having
					diabetes.Taking metoclopramide for 12 or more weeks. Antidepressants and TDAntidepressants help treat depression and other conditions like
				anxiety and
		obsessive-compulsive disorder. Antidepressant-induced TD is more 
		likely to affect people over 65 due to age-related brain changes. In 
		general, this is much more rare than TD due to antipsychotic 
		medications. The following antidepressants are associated with TD: 
					
					Trazodone, which is a serotonin modulator.Amitriptyline,
			clomipramine and
			doxepin, which are
			tricyclic antidepressants.Fluoxetine and
			sertraline, which are
			SSRIs.Phenelzine and
			rasagiline, which are
			MAOIs.Selegiline (an MAOI) is associated with TD when you use it in 
			combination with levodopa. Lithium and TDLithium, a medication that helps treat
		bipolar disorder, is linked to TD. But your risk of developing TD is 
		much higher if you take lithium in combination with an antipsychotic 
		medication. Antiseizure medications and TDAntiseizure medications help treat and prevent
		seizures.
		Carbamazepine and
		lamotrigine are associated with TD, but it’s rare for them to cause 
		it.
		Phenytoin is also associated with TD. Antihistamines and TDAntihistamines help treat allergy symptoms. Hydroxyzine in particular is 
		associated with TD after prolonged use. People over the age of 65 with previous exposure to phenothiazines 
		(typical antipsychotics) have a higher likelihood of developing TD after 
		taking hydroxyzine. Antimalarials and TDAntimalarials treat or prevent
		malaria.
		Chloroquine and amodiaquine are associated with TD. What are the risk factors for tardive dyskinesia?Certain factors may increase your risk of developing tardive dyskinesia, 
		including: 
					
					Age: People over 40 are more likely to develop TD. 
			Those over 65 are especially at risk due to age-related neurological 
			changes.
					Sex: Females are more likely to develop TD. Those 
			in post-menopause have rates of TD as high as 30% after almost a 
			year of exposure to antipsychotic medications.
					Race: Studies show that Black Americans are more 
			likely to develop TD than white Americans. And people of Filipino 
			and Asian descent have a lower risk of developing TD than people of 
			Caucasian descent.
					Bipolar disorder: People with bipolar disorder who 
			take antipsychotic medications are more sensitive to developing TD 
			compared to other people taking the same medications. Researchers are currently studying genetic factors that may increase or 
		decrease your chance of developing TD. What are the complications of tardive dyskinesia?The uncontrollable movements of tardive dyskinesia can be uncomfortable 
		and affect your social and emotional well-being. This can significantly 
		impact your mental health. It can also make it difficult to do everyday 
		tasks. TD generally isn’t fatal. But severe TD that affects your
		larynx (laryngospasm) 
and
diaphragm can very rarely cause breathing issues that can be 
life-threatening.   
 
		Diagnosis and Tests
		  
			
				How is tardive dyskinesia diagnosed?Your healthcare provider will ask about your symptoms, medical 
		history and medication history. If you take a medication that’s known to 
		cause tardive dyskinesia, your provider will likely suspect TD. They’ll 
		also do a physical exam and a neurological exam. They may refer you to a 
		specialist, like a neurologist, movement disorder specialist or 
		psychiatrist. Healthcare providers refer to the Diagnostic and Statistical Manual 
		of Mental Disorders (DSM-5) to diagnose tardive dyskinesia. It states 
		that symptoms of TD must last for at least one month after stopping the 
		medication to get a diagnosis of the condition. You must have been on 
		the medication for at least three months if you’re 40 or younger or one 
		month if you’re over 40. Your provider may recommend other tests to confirm TD or rule out 
		other conditions with similar symptoms, like Huntington’s disease. These 
		may include laboratory tests and imaging tests, like a brain
				CT scan and/or MRI. 
		But TD is typically a clinical diagnosis. This means that providers make 
		the diagnosis after obtaining an accurate medical history and detailed 
		physical exam without any additional testing. 
		  
 
		Management and Treatment
		  
			
				What is the treatment for tardive dyskinesia?Studies on the management of tardive dyskinesia are inconsistent. Some 
		studies show an improvement when you decrease the dose or stop taking 
		the antipsychotic medication. Other studies show no change. Your provider may recommend stopping the medication causing TD, if 
		possible. Unfortunately, this approach isn’t always feasible, as it can 
		worsen the underlying condition it’s meant to treat. If you develop TD while taking a first-generation antipsychotic 
		medication, your provider may switch you to a second-generation 
		antipsychotic medication. Other than stopping or switching antipsychotic medication, the strongest 
		current evidence for TD treatment is the use of the VMAT inhibitors,
		deutetrabenazine and
		valbenazine. These medications have now been proven to be safe and 
		effective. Your provider may recommend these medications if you have 
		moderate to severe TD that’s affecting your quality of life. Is tardive dyskinesia reversible?Unfortunately, most cases of tardive dyskinesia are chronic (long-term). 
		While medication may help manage the condition, it can’t cure or reverse 
		it. 
		  
 
		Outlook
		  
			
				What can I expect if I have tardive dyskinesia?Tardive dyskinesia affects everyone differently. The symptoms can range 
		from mild to severe. In addition, treatment helps manage the symptoms 
		for some but not for others. Your healthcare provider will work with you 
		to find the best treatment plan. They’ll be able to give you a better 
		idea of what to expect. 
		  
 
			
				Usually, tardive dyskinesia is a long-term medical condition. But 
		your TD symptoms can go into remission, meaning your symptoms can go 
		away. If you're taking an antipsychotic or antiemetic medication, watch 
		for TD signs. Tell your doctor right away if you notice any uncontrolled movements. 
		Early diagnosis gives you the best chance for treatment and remission. 
		Your doctor can help you decide on the best treatment option. 
		  
 
		Prevention
		  
			
				Is tardive dyskinesia preventable?Tardive dyskinesia is unpredictable. Not everyone who takes certain 
		medications develops it. If you have risk factors that make you more prone to this condition, 
		talk to your healthcare provider. You may be able to prevent tardive 
		dyskinesia by taking a different medication. To lower your risk of 
		developing TD, your provider will prescribe the lowest effective dose of 
		an antipsychotic medication for the shortest period possible. If you have to take a medication known to cause TD, talk to your 
		provider about routine screenings of movement symptoms. Recognizing the 
		symptoms of TD early can help lessen their severity. It’s best to get 
		these screenings every three to six months after starting a medication 
		that can cause TD. 
		  
 
		Living With TD
		  
			
				How can I take care of myself if I have tardive dyskinesia?Your healthcare provider will work with you to adjust your treatment 
		plan as needed. Other steps you can take to manage TD include: 
					Making sure you have a routine symptom assessment by your provider 
			every three to six months.Keeping track of your symptoms and letting your provider know if you 
			develop new ones.Practicing self-care that includes physical activity. Exercise can 
			help relieve some movement symptoms.Talking to your provider about your daily functioning and quality of 
			lifeSeeking help from a mental health professional if TD is affecting 
			your mental and social health. When should I go to the ER?If tardive dyskinesia is making it difficult to breathe, call 911 or go 
		to the nearest emergency room as soon as possible. 
		  
 Tardive Dyskinesia FAQ's  
			
				
				How to reverse tardive dyskinesia Although potentially permanent, you can do some things to help 
		prevent or lower your chances for tardive dyskinesia. Monitor your 
		symptoms for early diagnosis. Watch out for any uncontrollable movements 
		and tell your doctor right away. Your doctor can help identify the cause 
		of your TD symptoms. With treatment, TD symptoms can go into remission 
		(a period without symptoms). 
				Is tardive dyskinesia permanent? Tardive dyskinesia is potentially a permanent condition. But early 
		diagnosis and treatment can mean remission. Remission is when your TD 
		symptoms go away or lessen. Your doctor can help you decide on the best 
		treatment for your TD. 
				What kind of doctor treats tardive dyskinesia?  Most movement disorder specialists are doctors who treat brain 
		problems. This can include a neurologist (a doctor who treats your 
		brain, spinal cord, and nerves) or a psychiatrist (who specializes in 
		mental health). 
		  
 
		One Final Note..
		  
			
				Tardive dyskinesia (TD) affects everyone differently. For some, it can 
		significantly affect their quality of life. Know that your healthcare 
		provider will be by your side to monitor and manage TD. They can 
		recommend and adapt treatment plans to fit your needs and suggest 
		self-care strategies that can help.   
 Other Tardive 
		Syndromes  
			
				
				Tardive akathisia: A state of mental agitation that 
		causes an inner sense of restlessness with an inability to sit still, 
		typically in the trunk or legs. It presents as body rocking movements, 
		shifting weight from one foot to another, marching in place, and/or 
		continual crossing and uncrossing of the legs. Sometimes it is 
		associated with moaning or repetitive touching movements. It is one of 
		the most disabling and difficult to treat tardive syndromes. (Founder’s 
		comment: Akathisia can also cause a debilitating inner terror and a 
		feeling as if the person is on fire or their blood is boiling, with or 
		without visible outer symptoms. 
				Tardive chorea: Random, jerking movements that flow 
		from one body region to the next, in an unpredictable manner. 
				Tardive dystonia: Usually presents as eye twitching, 
		oral and jaw muscle contractions, repetitive muscle contractions that 
		cause neck extension, trunk hyperextension, arm hyperextension and wrist 
		flexion. It can sometimes be severe enough to cause life-threatening 
		swallowing difficulties. 
				Tardive gait: Tripping and shuffling movements of 
		the feet with difficulty standing and moving from one place to the 
		other. 
				Tardive ocular deviations: Spasmodic movements of 
		the eyes with deviation in the upward direction that last for several 
		seconds or minutes. 
				Tardive myoclonus: Often presents as a brief, 
		jerk-like muscle contraction in the upper extremities, usually in the 
		arms and shoulders. 
				Tardive sensory syndrome (tardive pain): A chronic 
		burning sensation usually limited to the mouth and/or genitalia. 
				Tardive parkinsonism: Parkinsonism that persists 
		after discontinuation from dopamine receptor blocking agents (DRBAs), 
		with a normal SPECT scan. Other than the history of DRBAs use and the 
		presence of other tardive syndromes, there are no other features that 
		separate it from other causes of parkinsonism. Considered very rare. 
				Tardive tics (tardive Tourette’s): Sudden, brief, 
		sporadic involuntary movements or sounds. 
				Tardive tremor: A tremor that occurs while at 
		complete rest or with voluntary action. It may affect any part of the 
		body, but most often affects the arms and hands. 
				Copulatory dyskinesia: Thrusting movements of the 
		trunk and pelvis. 
				Esophageal dyskinesia: It can lead to asphyxiation 
		of food and is potentially life-threatening. 
				Rabbit syndrome: Fine, rhythmic actions at rest, 
		that mimic the chewing actions of a rabbit. The tongue is usually not 
		involved. 
				Respiratory dyskinesia: The respiratory pattern is 
		affected. It causes irregular inhalation and exhalation during 
		breathing. This leads to hyperventilation and hypoventilation, at 
		different times. It can also lead to aspiration pneumonia. 
				Stereotypy: Seeming purposeful, repetitive (rather 
		than random) and coordinated movements that can appear like rituals. 
		Though they seem purposeful, they are involuntary. Examples include the 
		“piano-playing fingers” and “hand clasping” sometimes seen in TD. 
				Withdrawal emergent syndrome: Occurs in patients 
		rapidly withdrawn from DRBAs. The movements usually mainly involve the 
		neck, trunk and limbs. The oral-buccal-lingual muscles are rarely 
		involved. It is usually time-limited to four to eight weeks, but when it 
		persists more than eight weeks it is considered tardive dyskinesia. The 
		slow tapering of DRBAs reduces the risk of this syndrome.   
 A look at the big picture  
			
				Tardive dyskinesia affects an estimated 500,000 
		persons in the United States. About 60% to 70% of cases are mild, and 
		about 3% are extremely severe. Particularly at risk are patients who 
		have been treated for schizophrenia, schizoaffective disorder, or 
		bipolar disorder. Persistent and irreversible tardive dyskinesia is most 
		likely to develop in older persons. 
				Significance questioned Tardive dyskinesia’s relative significance as a clinical 
		problem and the need for treatment have been questioned since the 
		disorder was first recognized, according to Stanley N. Caroff, MD, 
		Perelman School of Medicine, University of Pennsylvania, in a recent article in
				Neuropsychiatric Disease and 
		Treatment. Tardive dyskinesia had been thought to be uncommon and 
		restricted to patients with chronic mental illness, but recent evidence 
		has shown that anyone exposed to dopamine-receptor blocking drugs, not 
		just persons with chronic mental illness, may be at risk. 
				Some key statistics: 
					The cumulative incidence is about 4% 
		to 5% annually; the prevalence rate is 20% to 30%.Younger patients are at risk and may 
		be particularly susceptible to more generalized and dystonic movements, 
		but older age is a major risk factor.The annual incidence in patients 
		older than 45 years is 15% to 30% after 1 year of treatment; the 
		prevalence rate is about 50% to 60%.Tardive dyskinesia has been linked 
		with female gender, race, higher ratings of negative symptoms and 
		thought disorder, greater cognitive impairments, acute drug-induced 
		movement disorders, substance abuse, and diabetes.Older adults and patients with 
		schizophrenia may be at greatest risk, but patients with mood disorders 
		are at risk and have been considered to be at high risk.Regardless of diagnosis, tardive 
		dyskinesia is not rare and anyone exposed to treatment with 
		antipsychotics is at risk. First- vs second-generation antipsychotics 
					A 6- to 12-fold reduction in tardive 
		dyskinesia risk was found with newer second-generation antipsychotics 
		(SGAs) compared with haloperidol.The relative risk of tardive 
		dyskinesia with SGAs is significantly less on average than that with 
		older first-generation antipsychotics. The risk associated with 
		clozapine is probably least.The SGAs retain some risk. No 
		currently available antipsychotic is risk-free.Additional risk factors for the 
		development and persistence of tardive dyskinesia are longer duration of 
		antipsychotic treatment and greater cumulative drug doses. 
				Objective severity and functional impact The conventional wisdom that tardive dyskinesia is 
		unimportant may be the result of patient selection bias or the lack of 
		rigorous investigations, Dr Caroff noted. In the early reports of older 
		patients with chronic illnesses showing indifference, up to two-thirds 
		seemed unaware of tardive dyskinesia movements. However, in a recent 
		survey of outpatients with possible tardive dyskinesia, 70% to 80% were 
		aware of their movements and 50% to 60% felt self-conscious or 
		embarrassed by them. As clinicians assess the seriousness of tardive 
		dyskinesia and the need for treatment, they should consider the 
		objective severity of the movements and the functional impact on 
		patients, Dr Caroff suggested. He added that correlations between tardive dyskinesia 
		and impaired cognition, poor response to treatment, risk of relapse, and 
		other factors are confounded by the effect of the underlying psychiatric 
		illness-patients with severe psychoses and poor prognoses receive higher 
		doses of antipsychotics for longer periods with poor adherence, 
		resulting secondarily in a greater incidence of tardive dyskinesia. 
				Adverse effects on quality of life RealâWorld Evaluation Screening Study and Registry of 
		Dyskinesia in Patients Taking Antipsychotic Agents (RE-KINECT) study 
		data showed the following effects of involuntary movements on patient 
		health-related quality of life (HRQoL): 
					Close to 30% of patients who had 
		possible tardive dyskinesia reported moderate-to-extreme problems in 
		performing their usual activities (eg, work, housework, and leisure 
		activities) compared with just under 20% of patients who did not.Almost half of patients who had 
		possible tardive dyskinesia experienced moderate-to-extreme anxiety or 
		depression compared with just under 40% of patients who did not.Just more than 20% of patients who 
		had possible tardive dyskinesia reported moderate-to-extreme mobility 
		problems compared with about 12% of patients who did not.Utility scores in a regression model 
		showed poorer perceived QoL in patients who had possible tardive 
		dyskinesia and reported “a lot” of severity or “a lot” of impact on 
		daily activities compared with patients who did not. “The RE-KINECT study provides valuable insights into the 
		real-world and personal impact the involuntary movements from possible 
		tardive dyskinesia may have on the everyday life of a patient,” said Dr 
		Caroff. “The findings from RE-KINECT are valuable for informing 
		treatment decisions in clinical practice and demonstrate the importance 
		of including assessments from patients and caregivers on the severity 
		and social impact of the stigmatizing movements of tardive dyskinesia.”   |