BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuDrug-induced tremorTremor - drug-induced; Shaking - drug tremorDrug-induced tremor is involuntary shaking due to the use of medicines. Involuntary means you shake without trying to do so and can't stop when you try. The shaking occurs when you move or try to hold your arms, hands, or head in a certain position. It is not associated with other symptoms. Causes Drug-induced tremor is a simple nervous system and muscle response to certain medicines. Drugs that can cause tremor include the following:Cancer medicines such as thalidomide and cytarabine Seizure medicines such as valproic acid (Depakote) and sodium valproate (Depakene) Asthma medicines such as theophylline and albuterol Immune suppressing medicines such as cyclosporine and tacrolimus Mood stabilizers such as lithium carbonate Stimulants such as caffeine and amphetamines StimulantsStimulants are drugs or medicines that increase your heart rate, breathing rate, and brain function. Some stimulants affect only a specific organ, s...ImageRead Article Now Book Mark Article CaffeineCaffeine is a substance that is found in certain plants. It can also be man-made and added to foods. It is a central nervous system stimulant and a...Read Article Now Book Mark Article Antidepressant drugs such as selective serotonin reuptake inhibitors (SSRIs) and tricyclics Heart medicines such as amiodarone, procainamide, and others Certain antibiotics Steroids Certain antivirals, such as acyclovir and vidarabine Alcohol Nicotine Certain high blood pressure drugs Epinephrine and norepinephrine Weight loss medicine (tiratricol) Too much thyroid medicine (levothyroxine) Tetrabenazine, a medicine to treat excessive movement disorder Symptoms The tremor may affect the hands, arms, head, or eyelids. In rare cases, the lower body is affected. The tremor may not affect both sides of the body equally.The shaking is usually fast, about 4 to 12 movements per second.The tremor may be:Episodic (occurring in bursts, sometimes about an hour after taking the medicine) Intermittent (comes and goes with activity, but not always) Sporadic (happens on occasion) The tremor can:Occur either with movement or at rest Disappear during sleep Get worse with voluntary movement and emotional stress Other symptoms may include:Head nodding Shaking or quivering sound to the voice Problems with writing, drawing, drinking from a cup, or using tools if the tremor affects the hands Exams and Tests Your health care provider can make the diagnosis by performing a physical exam and asking about your medical and personal history. You will also be asked about the medicines you take.Tests may be done to rule out other reasons for the tremor. A tremor that occurs when the muscles are relaxed or that affects the legs or coordination may be a sign of another condition, such as Parkinson disease. The speed of the tremor can be an important way to determine its cause.Other causes of tremors may include:Alcohol withdrawal Alcohol withdrawalAlcohol withdrawal refers to symptoms that may occur when a person who has been drinking too much alcohol on a regular basis suddenly stops drinking ...Read Article Now Book Mark Article Cigarette smoking Overactive thyroid (hyperthyroidism) HyperthyroidismHyperthyroidism is a condition in which the thyroid gland makes too much thyroid hormone. The condition is often called overactive thyroid.ImageRead Article Now Book Mark Article Parkinson disease Adrenal gland tumor (pheochromocytoma) PheochromocytomaPheochromocytoma is a rare tumor of adrenal gland tissue. It results in the release of too much epinephrine and norepinephrine, hormones that contro...ImageRead Article Now Book Mark Article Too much caffeine Disorder in which there is too much copper in the body (Wilson disease)Wilson diseaseWilson disease is an inherited disorder in which there is too much copper in the body's tissues. The excess copper damages the liver and nervous sys...ImageRead Article Now Book Mark Article Blood tests and imaging studies (such as a CT scan of the head, brain MRI, and x-rays) are usually normal.MRIA magnetic resonance imaging (MRI) scan is an imaging test that uses powerful magnets and radio waves to create pictures of the body. It does not us...ImageRead Article Now Book Mark Article Treatment Drug-induced tremor often goes away when you stop taking the medicine that is causing the shaking.You may not need treatment or changes in the medicine if the tremor is mild and does not interfere with your daily activity.If the benefit of the medicine is greater than the problems caused by the tremor, your provider may have you try different dosages of the medicine. Or, you may be prescribed another medicine to treat your condition. In rare cases, a drug such as propranolol may be added to help control the tremor.Do not stop taking any medicine without first talking to your provider. Possible Complications Severe tremor can interfere with daily activities, especially fine motor skills such as writing, and other activities such as eating or drinking. When to Contact a Medical Professional Contact your provider if you are taking a medicine and a tremor develops that interferes with your activity or is accompanied by other symptoms. Prevention Always tell your provider about the medicines you take. Ask your provider if it is OK to take over-the-counter medicines that contain stimulants or theophylline. Theophylline is a drug used to treat wheezing and shortness of breath.Caffeine can cause tremor and make tremor caused by other medicines worse. If you have a tremor, avoid caffeinated drinks such as coffee, tea, and soda. Also avoid other stimulants.Open ReferencesReferencesMastaglia FL. Drug-induced disorders of the nervous system. In: Aminoff MJ, Josephson SA, eds. Aminoff's Neurology and General Medicine. 6th ed. Waltham, MA: Elsevier Academic Press; 2021:chap 32.Morgan JC, Kurek JA, Davis JL, Sethi KD. Insights into pathophysiology from medication-induced tremor. Tremor Other Hyperkinet Mov (N Y). 2017;7:442. PMID: 29204312 pubmed.ncbi.nlm.nih.gov/29204312/.Okun MS, Lang AE. Other movement disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 382.ul Haq Ihtsham, Liebenow B, Okun MS. Clinical overview of movement disorders. In: Winn HR, ed. Youmans and Winn Neurological Surgery. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 105.AllVideoImagesTogCentral nervous system and peripheral nervous system - illustration The central nervous system comprises the brain and spinal cord. The peripheral nervous system includes nerves outside the brain and spinal cord.Central nervous system and peripheral nervous systemillustrationCentral nervous system and peripheral nervous system - illustration The central nervous system comprises the brain and spinal cord. The peripheral nervous system includes nerves outside the brain and spinal cord.Central nervous system and peripheral nervous systemillustrationRelated Information Stimulants(Special Topic)Caffeine in the diet(Nutrition) Review Date: 4/25/2022 Reviewed By: Joseph V. Campellone, MD, Department of Neurology, Cooper University Hospital, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. 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Drug-induced tremorTremor - drug-induced; Shaking - drug tremorDrug-induced tremor is involuntary shaking due to the use of medicines. Involuntary means you shake without trying to do so and can't stop when you try. The shaking occurs when you move or try to hold your arms, hands, or head in a certain position. It is not associated with other symptoms. Causes Drug-induced tremor is a simple nervous system and muscle response to certain medicines. Drugs that can cause tremor include the following:Cancer medicines such as thalidomide and cytarabine Seizure medicines such as valproic acid (Depakote) and sodium valproate (Depakene) Asthma medicines such as theophylline and albuterol Immune suppressing medicines such as cyclosporine and tacrolimus Mood stabilizers such as lithium carbonate Stimulants such as caffeine and amphetamines StimulantsStimulants are drugs or medicines that increase your heart rate, breathing rate, and brain function. Some stimulants affect only a specific organ, s...ImageRead Article Now Book Mark Article CaffeineCaffeine is a substance that is found in certain plants. It can also be man-made and added to foods. It is a central nervous system stimulant and a...Read Article Now Book Mark Article Antidepressant drugs such as selective serotonin reuptake inhibitors (SSRIs) and tricyclics Heart medicines such as amiodarone, procainamide, and others Certain antibiotics Steroids Certain antivirals, such as acyclovir and vidarabine Alcohol Nicotine Certain high blood pressure drugs Epinephrine and norepinephrine Weight loss medicine (tiratricol) Too much thyroid medicine (levothyroxine) Tetrabenazine, a medicine to treat excessive movement disorder Symptoms The tremor may affect the hands, arms, head, or eyelids. In rare cases, the lower body is affected. The tremor may not affect both sides of the body equally.The shaking is usually fast, about 4 to 12 movements per second.The tremor may be:Episodic (occurring in bursts, sometimes about an hour after taking the medicine) Intermittent (comes and goes with activity, but not always) Sporadic (happens on occasion) The tremor can:Occur either with movement or at rest Disappear during sleep Get worse with voluntary movement and emotional stress Other symptoms may include:Head nodding Shaking or quivering sound to the voice Problems with writing, drawing, drinking from a cup, or using tools if the tremor affects the hands Exams and Tests Your health care provider can make the diagnosis by performing a physical exam and asking about your medical and personal history. You will also be asked about the medicines you take.Tests may be done to rule out other reasons for the tremor. A tremor that occurs when the muscles are relaxed or that affects the legs or coordination may be a sign of another condition, such as Parkinson disease. The speed of the tremor can be an important way to determine its cause.Other causes of tremors may include:Alcohol withdrawal Alcohol withdrawalAlcohol withdrawal refers to symptoms that may occur when a person who has been drinking too much alcohol on a regular basis suddenly stops drinking ...Read Article Now Book Mark Article Cigarette smoking Overactive thyroid (hyperthyroidism) HyperthyroidismHyperthyroidism is a condition in which the thyroid gland makes too much thyroid hormone. The condition is often called overactive thyroid.ImageRead Article Now Book Mark Article Parkinson disease Adrenal gland tumor (pheochromocytoma) PheochromocytomaPheochromocytoma is a rare tumor of adrenal gland tissue. It results in the release of too much epinephrine and norepinephrine, hormones that contro...ImageRead Article Now Book Mark Article Too much caffeine Disorder in which there is too much copper in the body (Wilson disease)Wilson diseaseWilson disease is an inherited disorder in which there is too much copper in the body's tissues. The excess copper damages the liver and nervous sys...ImageRead Article Now Book Mark Article Blood tests and imaging studies (such as a CT scan of the head, brain MRI, and x-rays) are usually normal.MRIA magnetic resonance imaging (MRI) scan is an imaging test that uses powerful magnets and radio waves to create pictures of the body. It does not us...ImageRead Article Now Book Mark Article Treatment Drug-induced tremor often goes away when you stop taking the medicine that is causing the shaking.You may not need treatment or changes in the medicine if the tremor is mild and does not interfere with your daily activity.If the benefit of the medicine is greater than the problems caused by the tremor, your provider may have you try different dosages of the medicine. Or, you may be prescribed another medicine to treat your condition. In rare cases, a drug such as propranolol may be added to help control the tremor.Do not stop taking any medicine without first talking to your provider. Possible Complications Severe tremor can interfere with daily activities, especially fine motor skills such as writing, and other activities such as eating or drinking. When to Contact a Medical Professional Contact your provider if you are taking a medicine and a tremor develops that interferes with your activity or is accompanied by other symptoms. Prevention Always tell your provider about the medicines you take. Ask your provider if it is OK to take over-the-counter medicines that contain stimulants or theophylline. Theophylline is a drug used to treat wheezing and shortness of breath.Caffeine can cause tremor and make tremor caused by other medicines worse. If you have a tremor, avoid caffeinated drinks such as coffee, tea, and soda. Also avoid other stimulants.Open ReferencesReferencesMastaglia FL. Drug-induced disorders of the nervous system. In: Aminoff MJ, Josephson SA, eds. Aminoff's Neurology and General Medicine. 6th ed. Waltham, MA: Elsevier Academic Press; 2021:chap 32.Morgan JC, Kurek JA, Davis JL, Sethi KD. Insights into pathophysiology from medication-induced tremor. Tremor Other Hyperkinet Mov (N Y). 2017;7:442. PMID: 29204312 pubmed.ncbi.nlm.nih.gov/29204312/.Okun MS, Lang AE. Other movement disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 382.ul Haq Ihtsham, Liebenow B, Okun MS. Clinical overview of movement disorders. In: Winn HR, ed. Youmans and Winn Neurological Surgery. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 105.