BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuHydroxyzine overdoseVistaril overdoseHydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness.AllergiesAn allergy is an immune response or reaction to substances that are usually not harmful.Read Article Now Book Mark Article Hydroxyzine overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose.This article is for information only. DO NOT use it to treat or manage an actual overdose. If you or someone you are with has an overdose, call your local emergency number (such as 911), or your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.OverdoseAn overdose is when you take more than the recommended amount of something, often a medicine or drug. An overdose may result in serious, harmful sym...Read Article Now Book Mark Article Poisonous Ingredient Hydroxyzine can be harmful in large amounts. Where Found Hydroxyzine is found in medicines with these names:Durrax Rezine Vistaril MultipaxOther medicines may also contain hydroxyzine. Symptoms Dilated pupils are the classic symptom of a hydroxyzine overdose. Below are other symptoms of a hydroxyzine overdose in different parts of the body.AIRWAYS AND LUNGSShortness of breathShortness of breathBreathing difficulty may involve:Difficult breathing Uncomfortable breathingFeeling like you are not getting enough airRead Article Now Book Mark Article BLADDER AND KIDNEYSDifficulty urinatingEYES, EARS, NOSE, THROAT, AND MOUTHBlurred vision Blurred visionThere are many types of eye problems and vision disturbances, such as: Halos Blurred vision (the loss of sharpness of vision and the inability to see...Read Article Now Book Mark Article Dry mouth Dry mouthDry mouth occurs when you don't make enough saliva. This causes your mouth to feel dry and uncomfortable. Dry mouth that is ongoing may be a sign o...Read Article Now Book Mark Article Enlarged pupils Dry eyes Ringing in the earsRinging in the earsTinnitus is the medical term for "hearing" noises in your ears. It occurs when there is no outside source of the sounds. Tinnitus is often called "r...Read Article Now Book Mark Article HEART AND BLOODRapid heartbeat Rapid heartbeatPalpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck. You may:Have an unpl...Read Article Now Book Mark Article Low blood pressure Low blood pressureLow blood pressure occurs when blood pressure is much lower than normal. This means the heart, brain, and other parts of the body may not get enough...Read Article Now Book Mark Article Pounding heartbeat (palpitations)PalpitationsPalpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck. You may:Have an unpl...Read Article Now Book Mark Article NERVOUS SYSTEMAgitation AgitationAgitation is an unpleasant state of extreme arousal. An agitated person may feel stirred up, excited, tense, confused, or irritable.Read Article Now Book Mark Article Coma (decreased level of consciousness and lack of responsiveness) ComaDecreased alertness is a state of reduced awareness and is often a serious condition. A coma is the most severe state of decreased alertness from whi...Read Article Now Book Mark Article Seizures SeizuresA seizure is the physical changes in behavior that occurs during an episode of specific types of abnormal electrical activity in the brain. The term ...Read Article Now Book Mark Article Delirium DeliriumDelirium is sudden severe confusion due to rapid changes in brain function that can occur with physical or mental illness.Read Article Now Book Mark Article Depression DepressionDepression may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for shor...Read Article Now Book Mark Article Disorientation Dizziness DizzinessDizziness is a term that is often used to describe 2 different symptoms: lightheadedness and vertigo. Lightheadedness is a feeling that you might fai...Read Article Now Book Mark Article Drowsiness DrowsinessDrowsiness refers to feeling more sleepy than normal during the day. People who are drowsy may fall asleep when they do not want to or at times whic...Read Article Now Book Mark Article Hallucinations (seeing or hearing things that aren't there) HallucinationsHallucinations involve sensing things such as visions, sounds, or smells that seem real but are not. These things are created by the mind.Read Article Now Book Mark Article Nervousness Sleeping difficulties Tremor TremorA tremor is a type of shaking movement. A tremor is most often noticed in the hands and arms. It may affect any body part, including the head, tong...Read Article Now Book Mark Article Uncoordinated movement UnsteadinessUnsteadinessWalking abnormalities can be caused by many different types of problems. Problems with the joints, (such as arthritis), bones (such as deformities),...Read Article Now Book Mark Article SKINDry, red, or flushed skinFlushed skinSkin blushing or flushing is a sudden reddening of the face, neck, or upper chest due to increased blood flow.Read Article Now Book Mark Article STOMACH AND INTESTINESNausea NauseaNausea is feeling an urge to vomit. It is often called "being sick to your stomach. "Vomiting or throwing-up forces the contents of the stomach up t...Read Article Now Book Mark Article Vomiting Before Calling Emergency Have this information ready:Person's age, weight, and condition Name of the product (ingredients and strength, if known) Time it was swallowed Amount swallowed If the medicine was prescribed for the person Poison Control Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This national hotline will let you talk to experts in poisoning. They will give you further instructions.Poison control centerFor a POISON EMERGENCY call:1-800-222-1222ANYWHERE IN THE UNITED STATESThis national hotline number will let you talk to experts in poisoning. This ...Read Article Now Book Mark Article This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week. What to Expect at the Emergency Room Take the container to the hospital with you, if possible.The health care provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure.Vital signsVital signs reflect essential body functions, including your heartbeat, breathing rate, temperature, and blood pressure. Your health care provider m...Read Article Now Book Mark Article Tests that may done include:Blood and urine tests Chest x-ray Chest x-rayA chest x-ray is an x-ray of the chest, lungs, heart, large arteries, ribs, and diaphragm.Read Article Now Book Mark Article Electrocardiogram (ECG)ElectrocardiogramAn electrocardiogram (ECG) is a test that records the electrical activity of the heart.Read Article Now Book Mark Article Treatment may include:Fluids through a vein (by IV) Medicines to treat symptoms Activated charcoal Laxative Breathing support, including a tube through the mouth into the lungs and connected to a breathing machine (ventilator)VentilatorA kidney stone is a solid mass made up of tiny crystals. One or more stones can be in the kidney or ureter at the same time.Read Article Now Book Mark Article Outlook (Prognosis) Recovery is likely if the person survives the first 24 hours. Complications such as pneumonia, muscle damage from lying on a hard surface for a prolonged period of time, or brain damage from lack of oxygen may cause permanent disability. Few people actually die from an antihistamine overdose, unless they have serious heart rhythm disturbances or breathing problems.Keep all medicines in child-proof bottles and out of reach of children.Open ReferencesReferencesAronson JK. Anticholinergic drugs. In: Aronson JK, ed. Meyler's Side Effects of Drugs. 16th ed. Waltham, MA: Elsevier; 2016:534-539.Hoppe JA, Monte AA. Anticholinergics. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 140.AllVideoImagesTogRelated Information Review Date: 11/2/2023 Reviewed By: Jesse Borke, MD, CPE, FAAEM, FACEP, Attending Physician at Kaiser Permanente, Orange County, CA. 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. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited. © 1997- All rights reserved. A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.Content is best viewed in IE9 or above, Firefox and Google Chrome browser.
Hydroxyzine overdoseVistaril overdoseHydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness.AllergiesAn allergy is an immune response or reaction to substances that are usually not harmful.Read Article Now Book Mark Article Hydroxyzine overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose.This article is for information only. DO NOT use it to treat or manage an actual overdose. If you or someone you are with has an overdose, call your local emergency number (such as 911), or your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.OverdoseAn overdose is when you take more than the recommended amount of something, often a medicine or drug. An overdose may result in serious, harmful sym...Read Article Now Book Mark Article Poisonous Ingredient Hydroxyzine can be harmful in large amounts. Where Found Hydroxyzine is found in medicines with these names:Durrax Rezine Vistaril MultipaxOther medicines may also contain hydroxyzine. Symptoms Dilated pupils are the classic symptom of a hydroxyzine overdose. Below are other symptoms of a hydroxyzine overdose in different parts of the body.AIRWAYS AND LUNGSShortness of breathShortness of breathBreathing difficulty may involve:Difficult breathing Uncomfortable breathingFeeling like you are not getting enough airRead Article Now Book Mark Article BLADDER AND KIDNEYSDifficulty urinatingEYES, EARS, NOSE, THROAT, AND MOUTHBlurred vision Blurred visionThere are many types of eye problems and vision disturbances, such as: Halos Blurred vision (the loss of sharpness of vision and the inability to see...Read Article Now Book Mark Article Dry mouth Dry mouthDry mouth occurs when you don't make enough saliva. This causes your mouth to feel dry and uncomfortable. Dry mouth that is ongoing may be a sign o...Read Article Now Book Mark Article Enlarged pupils Dry eyes Ringing in the earsRinging in the earsTinnitus is the medical term for "hearing" noises in your ears. It occurs when there is no outside source of the sounds. Tinnitus is often called "r...Read Article Now Book Mark Article HEART AND BLOODRapid heartbeat Rapid heartbeatPalpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck. You may:Have an unpl...Read Article Now Book Mark Article Low blood pressure Low blood pressureLow blood pressure occurs when blood pressure is much lower than normal. This means the heart, brain, and other parts of the body may not get enough...Read Article Now Book Mark Article Pounding heartbeat (palpitations)PalpitationsPalpitations are feelings or sensations that your heart is pounding or racing. They can be felt in your chest, throat, or neck. You may:Have an unpl...Read Article Now Book Mark Article NERVOUS SYSTEMAgitation AgitationAgitation is an unpleasant state of extreme arousal. An agitated person may feel stirred up, excited, tense, confused, or irritable.Read Article Now Book Mark Article Coma (decreased level of consciousness and lack of responsiveness) ComaDecreased alertness is a state of reduced awareness and is often a serious condition. A coma is the most severe state of decreased alertness from whi...Read Article Now Book Mark Article Seizures SeizuresA seizure is the physical changes in behavior that occurs during an episode of specific types of abnormal electrical activity in the brain. The term ...Read Article Now Book Mark Article Delirium DeliriumDelirium is sudden severe confusion due to rapid changes in brain function that can occur with physical or mental illness.Read Article Now Book Mark Article Depression DepressionDepression may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for shor...Read Article Now Book Mark Article Disorientation Dizziness DizzinessDizziness is a term that is often used to describe 2 different symptoms: lightheadedness and vertigo. Lightheadedness is a feeling that you might fai...Read Article Now Book Mark Article Drowsiness DrowsinessDrowsiness refers to feeling more sleepy than normal during the day. People who are drowsy may fall asleep when they do not want to or at times whic...Read Article Now Book Mark Article Hallucinations (seeing or hearing things that aren't there) HallucinationsHallucinations involve sensing things such as visions, sounds, or smells that seem real but are not. These things are created by the mind.Read Article Now Book Mark Article Nervousness Sleeping difficulties Tremor TremorA tremor is a type of shaking movement. A tremor is most often noticed in the hands and arms. It may affect any body part, including the head, tong...Read Article Now Book Mark Article Uncoordinated movement UnsteadinessUnsteadinessWalking abnormalities can be caused by many different types of problems. Problems with the joints, (such as arthritis), bones (such as deformities),...Read Article Now Book Mark Article SKINDry, red, or flushed skinFlushed skinSkin blushing or flushing is a sudden reddening of the face, neck, or upper chest due to increased blood flow.Read Article Now Book Mark Article STOMACH AND INTESTINESNausea NauseaNausea is feeling an urge to vomit. It is often called "being sick to your stomach. "Vomiting or throwing-up forces the contents of the stomach up t...Read Article Now Book Mark Article Vomiting Before Calling Emergency Have this information ready:Person's age, weight, and condition Name of the product (ingredients and strength, if known) Time it was swallowed Amount swallowed If the medicine was prescribed for the person Poison Control Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This national hotline will let you talk to experts in poisoning. They will give you further instructions.Poison control centerFor a POISON EMERGENCY call:1-800-222-1222ANYWHERE IN THE UNITED STATESThis national hotline number will let you talk to experts in poisoning. This ...Read Article Now Book Mark Article This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week. What to Expect at the Emergency Room Take the container to the hospital with you, if possible.The health care provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure.Vital signsVital signs reflect essential body functions, including your heartbeat, breathing rate, temperature, and blood pressure. Your health care provider m...Read Article Now Book Mark Article Tests that may done include:Blood and urine tests Chest x-ray Chest x-rayA chest x-ray is an x-ray of the chest, lungs, heart, large arteries, ribs, and diaphragm.Read Article Now Book Mark Article Electrocardiogram (ECG)ElectrocardiogramAn electrocardiogram (ECG) is a test that records the electrical activity of the heart.Read Article Now Book Mark Article Treatment may include:Fluids through a vein (by IV) Medicines to treat symptoms Activated charcoal Laxative Breathing support, including a tube through the mouth into the lungs and connected to a breathing machine (ventilator)VentilatorA kidney stone is a solid mass made up of tiny crystals. One or more stones can be in the kidney or ureter at the same time.Read Article Now Book Mark Article Outlook (Prognosis) Recovery is likely if the person survives the first 24 hours. Complications such as pneumonia, muscle damage from lying on a hard surface for a prolonged period of time, or brain damage from lack of oxygen may cause permanent disability. Few people actually die from an antihistamine overdose, unless they have serious heart rhythm disturbances or breathing problems.Keep all medicines in child-proof bottles and out of reach of children.Open ReferencesReferencesAronson JK. Anticholinergic drugs. In: Aronson JK, ed. Meyler's Side Effects of Drugs. 16th ed. Waltham, MA: Elsevier; 2016:534-539.Hoppe JA, Monte AA. Anticholinergics. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 140.