Overdose hydroxyzine

HYDROXYZINE (hye DROX i zeen) treats the symptoms of allergies and allergic reactions. It may also be used to treat anxiety or cause drowsiness before a procedure. It works by blocking histamine, a substance released by the body during an allergic reaction. It belongs to a group of medications called antihistamines.

According to Mayo Clinic, consuming too much vitamin C is unlikely to be harmful or to cause an overdose. Too much vitamin C may, however, result in undesirable symptoms, such as d...Hydroxyzine (Oral Route) Before Using - Mayo ClinicHydroxyzine is a medicine used to treat anxiety, itching, nausea, and vomiting. It can also cause drowsiness and affect your heart rhythm. Before using this medicine, you should check with your doctor if you have any medical conditions or allergies that may affect its safety and effectiveness. Learn more about hydroxyzine and how to use it ...Small occasional doses of hydroxyzine would not be expected to cause any adverse effects in breastfed infants. Larger doses or more prolonged use may cause drowsiness and other effects in the …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 LUNGS. Shortness of breath; BLADDER AND KIDNEYS. Difficulty urinating; EYES, EARS, NOSE, THROAT, AND MOUTH. Blurred vision; Dry mouth; Enlarged pupils; Dry eyes; Ringing in the ears ...What happens if I overdose on Vistaril (Hydroxyzine)? Overdose symptoms may include severe drowsiness, nausea, vomiting, uncontrolled muscle movements, or seizure (convulsions).Unisom (doxylamine) Prescription first-generation H1-antihistamines sometimes used for the treatment of nasal allergies (generally when other allergy symptoms accompany) include: Atarax (hydroxyzine) Dimetane (brompherniramine) Palgic (carbinoxamine) Each of these medications has generic versions and may be found …Do not take hydroxyzine if you are allergic to any of its ingredients. Hydroxyzine can cause serious side effects in people who have low blood levels of magnesium or potassium. Alcohol can also deplete important electrolytes, worsening this effect. Overdose with hydroxyzine is possible and can be life-threatening. Pairing it with …

A hydroxyzine overdose can happen to anybody who uses the drug incorrectly, either by mistake or due to willful ignorance. It is often a sign that an individual has been abusing the substance and has been forced to take higher and higher doses. Taking higher doses occurs with many drugs due to a built-up tolerance or a desire for a …Hydroxyzine (Vistaril, Atarax) 25 QHS: 12.5–50 BID–TID: Evidence for efficacy in generalized anxiety disorder at total daily dose of 50 mg: Benzodiazepines ... Thus, TCAs should be used with care among patients with a history of suicide attempts by medication overdose (21, 22). Imipramine, the prototypical TCA, ...Do not take Vistaril if you are allergic to hydroxyzine or any ingredients contained in this drug. Keep out of reach of children; In case of overdose, get ...Atarax Syrup is used in the treatment of Anxiety,Skin conditions with inflammation & itching. View Atarax Syrup (bottle of 100.0 ml Syrup) uses, composition, side-effects, price, substitutes, drug interactions, precautions, warnings, expert advice and buy online at best price on 1mg.comSmall occasional doses of hydroxyzine would not be expected to cause any adverse effects in breastfed infants. Larger doses or more prolonged use may cause drowsiness and other effects in the infant or decrease the milk supply, particularly in combination with a sympathomimetic such as pseudoephedrine or before lactation is well …Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific antidote. It is doubtful that hemodialysis would be of any value in the treatment of overdosage with hydroxyzine.Introduction: Exposures to hydroxyzine, a first-generation H1 antihistamine, have increased rapidly over the last two decades. Many assumptions about hydroxyzine poisoning are based on other ...

Side effects associated with use of Hydroxyzine, include the following: Dry mouth. Drowsiness (usually transitory and may disappear in a few days of continued therapy or upon reduction of the dose) Involuntary motor activity ( tremor, convulsions) usually with doses considerably higher than those recommended.Dosage of Vistaril. Vistaril comes in both capsule and oral suspension (liquid) forms. The capsules are available in two different dosages: 25 mg capsules that are two-tone green and 50 mg capsules that are green and white. When prescribed for anxiety, the typical adult dose is 50 mg to 100 mg, up to four times a day.The biggest risk of hydroxyzine for dogs is an overdose. Signs of an overdose of hydroxyzine include: Excessive sleepiness. Hyperexcitability. Loss of coordination or stumbling. Increased body temperature. Passing out. Seizures If you know or suspect your dog has overdosed on hydroxyzine, contact your veterinarian immediately …Hydroxyzine is used to help control anxiety and tension caused by nervous and emotional conditions. It can also be used to help control anxiety and produce sleep before surgery. …A severe hydroxyzine overdose should be considered a medical emergency, and you should call 911 or go to the nearest emergency room immediately. The lowdown. Hydroxyzine can have a sedative effect and help you sleep. However, it is not typically prescribed to treat primary insomnia. It may be used to treat anxiety, which can cause …

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Jan 25, 2024 · Note: Hydroxyzine comes in two forms: hydroxyzine pamoate and hydroxyzine hydrochloride. Both work very similarly with few differences. In this article, when we discuss “hydroxyzine,” we’re referring to both forms of the medication. 1. Benadryl is available over the counter, while hydroxyzine is available by prescription only For oral dosage form (capsules, tablets, or solution): For anxiety and tension: Adults—50 to 100 milligrams (mg) 4 times a day. Children 6 years of age and older—50 to 100 mg per day given in divided doses. Children younger than 6 years of age—50 mg per day given in divided doses. For management of allergic reactions: Hydroxyzine dosage for anxiety. Hydroxyzine is an as-needed anxiety treatment. This is different from many other anti-anxiety medications that need to be taken regularly to be effective. The typical adult hydroxyzine dosage for anxiety is 50 mg to 100 mg 4 times daily as needed. You can take it with or without food.CLINICAL FEATURES OF OVERDOSE. Signs of severe toxicity; Range of peripheral and central signs of toxicity; Chronic toxicity; LABORATORY EVALUATION; DIFFERENTIAL DIAGNOSIS; DIAGNOSIS; MANAGEMENT. Airway, breathing, circulation, monitoring; Cardiotoxicity; Agitation, seizures, hyperthermia; Decontamination; Antidotal therapy with physostigmine ...Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific antidote. It is doubtful that hemodialysis would be of any value in the treatment of overdosage with hydroxyzine. However, if other agents such as barbiturates have been …Jun 28, 2022 · Hydroxyzine is available as a generic drug and under the brand names Atarax and Vistaril. The common dosage for hydroxyzine depends on the reason it is prescribed: Anxiety: 50-100 mg, four times per day; Skin reactions: 25 mg, 3-4 times per day; Allergies: 25 mg, 3-4 times per day

Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific …An overdose can cause hepatic necrosis. Paracetamol. Care is advised in the administration of paracetamol to patients with renal or hepatic impairment. The hazard of overdose is greater in those with non-cirrhotic alcoholic liver disease. Do not take with any other paracetamol-containing products. Immediate medical advice should be sought in …Mar 25, 2024 · Hydroxyzine (Vistaril) is a medication used for allergies, itching, and anxiety. It interacts with several medications and alcohol. Opioid pain medications and other antihistamines, such as diphenhydramine (Benadryl), interact with hydroxyzine. Combining them can cause severe drowsiness and raise the chance of accidental injuries. Descriptions. Hydroxyzine is used to help control anxiety and tension caused by nervous and emotional conditions. It can also be used to help control anxiety and produce sleep before surgery. This medicine is also used to relieve symptoms of allergic conditions (eg, chronic urticaria and atopic and contact dermatoses).Hydroxyzine is a first-generation antihistamine medication with antihistaminic and anxiolytic properties. It is commonly prescribed for the treatment and control of anxiety and allergic conditions and as a sedative. Hydroxyzine operates primarily by blocking the effects of histamine in the body. It exerts its action by antagonizing H1 …Among cases that described the TTO, 15 were reported following an overdose of hydroxyzine and patients experienced adverse events within 1 day. Excluding these 15 reports of overdose, the median TTO was 3 days. Overall, 14 out of the 59 cases (excluding cases with overdose) had a TTO of <7 days; considered a sufficiently long …Hydroxyzine is used to help control anxiety and tension caused by nervous and emotional conditions. It can also be used to help control anxiety and produce sleep before surgery. This medicine is also used to relieve symptoms of allergic conditions (eg, chronic urticaria and atopic and contact dermatoses).First Aid tips for Hydroxyzine Overdose: Hydroxyzine Overdose can be a life-threatening condition. If someone is suspected to have overdosed on hydroxyzine, call 911 (or your local emergency number) for emergency assistance immediately. Call the Poison Control Center at 1-800-222-1222 (or the local poison control center) for further ...Hydroxyzine (Vistaril) is a medication used for allergies, itching, and anxiety. It interacts with several medications and alcohol. Opioid pain medications and other antihistamines, such as diphenhydramine (Benadryl), interact with hydroxyzine. Combining them can cause severe drowsiness and raise the chance of accidental injuries.A severe hydroxyzine overdose should be considered a medical emergency, and you should call 911 or go to the nearest emergency room immediately. The lowdown. Hydroxyzine can have a sedative effect and help you sleep. However, it is not typically prescribed to treat primary insomnia. It may be used to treat anxiety, which can cause …Hydroxyzine starts to work in about 15 to 30 minutes but its drowsy effect may last for 4 to 6 hours. Hydroxyzine can reduce itching and redness due to allergy skin tests for up to 4 days. Hydroxyzine is used to relieve anxiety, itching due to allergies, and as a premedication prior to surgery.

The bottom line. Hydroxyzine (Vistaril) is a prescription medication that treats conditions such as anxiety, itching, and chronic hives in children and adults. It’s available as capsules, tablets, and an oral syrup.Your hydroxyzine dosage can depend on your age, medical conditions, and why you’re taking it. Most adults take between 25 mg ...

As hydroxyzine is also a first generation antihistamine, it too can make a person sleepy and is typically dosed 3 times daily. It's just another option if everything you have tried thus far has been ineffective. Finally, we mentioned at the beginning of the article that H1 receptors are mainly responsible for allergy symptoms. There is however ...Alprazolam is a benzodiazepine and belongs to the same family as lorazepam (Ativan) and clonazepam (Klonopin). This medication is FDA-approved to treat anxiety disorders (including GAD) and panic disorder. As with hydroxyzine, alprazolam is intended for short-term use — up to 4 months for anxiety disorders and up to 10 weeks for panic …As hydroxyzine is also a first generation antihistamine, it too can make a person sleepy and is typically dosed 3 times daily. It's just another option if everything you have tried thus far has been ineffective. Finally, we mentioned at the beginning of the article that H1 receptors are mainly responsible for allergy symptoms. There is however ...How to Treat Hydroxyzine Overdose in Dogs. If you suspect hydroxyzine overdose in your pup, the poison control line will offer specific instructions to help. The ASPCA confirms that in cases of antihistamine toxicosis, the response in pups varies greatly depending on the dose. They also confirm that the most common reported side effects …Overdose; FAQ; Uses of Hydroxyzine Capsules and Tablets: It is used to treat itching. It is used to treat anxiety. It is used to put you to sleep for surgery. It may be given to you for other reasons. Talk with the doctor. What do I need to tell my doctor BEFORE I take Hydroxyzine Capsules and Tablets?Hydroxyzine (Oral) Brand Names: Atarax, Rezine, Vistaril. Hydroxyzine reduces activity in the central nervous system. It also acts as an antihistamine that reduces the effects of natural chemical ...Hydroxyzine (brand names Vistaril, Atarax) is a first-generation antihistamine of the diphenylmethane and piperazine class. It was initially synthesized in 1956 and thereafter marketed in the U.S. by the pharmaceutical juggernaut, Pfizer. Although a relatively ancient medication by today’s standards, hydroxyzine is still commonly prescribed ...Overdose Information for Atarax. The most common manifestation of hydroxyzine hydrochloride overdosage is hypersedation. As in the management of overdosage with any drug, it should be borne in mind that multiple agents may have been taken. If vomiting has not occurred spontaneously, it should be induced. Immediate gastric lavage is also ...If you do, we would love to answer them for you. Please contact us today by calling 888.450.2153. Prescription drug addiction is a serious problem across the country. Call 425.532.3396 to learn about how a prescription drug rehab center can help with recovery.

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Hydroxyzine is a medication that treats the symptoms of allergies and allergic reactions. It may also be used to treat anxiety. It works by blocking histamine, a substance released by the body during an allergic reaction. It’s a type of antihistamine. It may cause drowsiness. Small occasional doses of hydroxyzine would not be expected to cause any adverse effects in breastfed infants. Larger doses or more prolonged use may cause drowsiness and other effects in the …Jul 29, 2021 · Alprazolam is a benzodiazepine and belongs to the same family as lorazepam (Ativan) and clonazepam (Klonopin). This medication is FDA-approved to treat anxiety disorders (including GAD) and panic disorder. As with hydroxyzine, alprazolam is intended for short-term use — up to 4 months for anxiety disorders and up to 10 weeks for panic disorder. Hydroxyzine (hye drox' i zeen) is a first generation antihistamine that is used mostly to treat itching and nausea. Because of its sedating effects, hydroxyzine is also used for anxiety, tension and as a mild sleeping aid. Hydroxyzine belongs to the piperazine class of antihistamines (with cyclizine and meclizine) which are more commonly used ...Sep 1, 2016 ... “Nearly one in three unintentional overdose deaths from prescription opioids also involve benzodiazepines,” said Baltimore Health Commissioner ...Hydroxyzine is intended for the symptomatic treatment of anxiety and stress associated with neurosis as well as with conditions of organic illness. This drug has muscle relaxant, antihistimine, analgesic, local anesthetic, and antiemetic action as well as a wide therapeutic effect. ... or were associated with intentional overdose. These results ...Sep 19, 2022 · Hydroxyzine is a drug prescribed to treat itching caused by a variety of allergic conditions, nausea, vomiting, and alcohol withdrawal. Common side effects of hydroxyzine are sedation, tiredness, sleepiness, dizziness, disturbed coordination, drying and thickening of oral and other respiratory secretions, and stomach distress. Do not take hydroxyzine if pregnant or breastfeeding. It is possible to overdose on penicillin. Taking more than the recommended dosage of the antibiotic, which is commonly used to treat bacterial infections like ear infections and re...A hydroxyzine overdose can happen to anybody who uses the drug incorrectly, either by mistake or due to willful ignorance. It is often a sign that an individual has been abusing the substance and has been forced to take higher and higher doses. Taking higher doses occurs with many drugs due to a built-up tolerance or a desire for a more potent ...Hydroxyzine is an antihistamine used to control itching in dogs and cats. ... An overdose will likely cause increased sedation and possibly hypotension (low blood pressure). Fine, rapid tremors and rarely seizures will also … Descriptions. Hydroxyzine is used to help control anxiety and tension caused by nervous and emotional conditions. It can also be used to help control anxiety and produce sleep before surgery. This medicine is also used to relieve symptoms of allergic conditions (eg, chronic urticaria and atopic and contact dermatoses). ….

core elements of the anticholinergic toxidrome. Key elements in the toxidrome are: Dilated pupils. Delirium. Tachycardia. Dry skin – This is an essential element, which helps separate anticholinergic toxidromes from sympathomimetic toxidromes. These four elements suggest an anticholinergic toxidrome.Hydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness. Hydroxyzine overdose occurs when …Anticholinergic toxicity is frequently encountered in the emergency department, and thus, it is essential that emergency clinicians be familiar with this toxidrome. There are approximately 8000 to 10,000 exposures to anticholinergic substances (including plants, drugs, and antispasmodics) reported to United States Poison Centers annually [ 1 … 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. Sep 5, 2011 ... An antihistamine overdose can cause cardiac arrhythmia by directly inhibiting cardiac K+ currents. Among the various cardiac K+ currents, I ...Overdose. Too much hydroxyzine and/or alcohol can put an individual at risk for a drug overdose. The most common symptom of this kind of overdose is ...Mar 21, 2024 ... The indicators of Hydroxyzine abuse closely mirror those of overdose, and the same applies to Hydroxyzine addiction. Here are some of the ...Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific antidote. It is doubtful that hemodialysis would be of any value in the treatment of overdosage with hydroxyzine. Overdose hydroxyzine, headache*. insomnia (trouble falling and staying asleep) dizziness. dry mouth *. confusion. constipation*. mild allergic reaction *. * To learn more about this side effect, see the “Side effects ..., Anticholinergic toxicity is frequently encountered in the emergency department, and thus, it is essential that emergency clinicians be familiar with this toxidrome. There are approximately 8000 to 10,000 exposures to anticholinergic substances (including plants, drugs, and antispasmodics) reported to United States Poison Centers annually [ 1 …, hydroxyzine and thioridazine both increase QTc interval. Contraindicated. Serious - Use Alternative (86) ... OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222., Oct 3, 2023 · A hydroxyzine overdose can happen to anybody who uses the drug incorrectly, either by mistake or due to willful ignorance. It is often a sign that an individual has been abusing the substance and has been forced to take higher and higher doses. Taking higher doses occurs with many drugs due to a built-up tolerance or a desire for a more potent ... , What happens if I overdose with hydroxyzine? If an overdose occurs call your doctor or 911. You may need urgent medical care. You may also contact the poison control center …, Mar 26, 2024 · Taking higher doses than prescribed can lead to serious repercussions, as hydroxyzine overdose is deadly. Hydroxyzine Overdose Side Effects. When used correctly, Hydroxyzine is safe and provides much-welcomed respite from difficult symptoms. Conversely, if it’s misused by taking more than the advised amount, difficult symptoms can arise ... , Hydroxyzine. Hydroxyzine is a first-generation antihistamine (and anticholingeric) with a variety of uses and indications, including uses as an anxiolytic. Hydroxyzine's predominant mechanism of action is as a potent and selective histamine (H1) receptor inverse agonist. This action is responsible for its antihistamine and sedative effects., Results 1 - 18 of 63 for "hydroxyzine hydrochloride" Sort by. Results per page. 1 / 3 Loading. TV 308. Previous Next. Hydroxyzine Hydrochloride Strength 25 mg Imprint TV 308 Color White Shape Round View details. 1 / 3 Loading. H 501 . Previous Next. Hydroxyzine Hydrochloride Strength 25 mg Imprint H 501 Color White Shape, Hydroxyzine is used to help control anxiety and tension caused by nervous and emotional conditions. It can also be used to help control anxiety and produce sleep before surgery. …, Overdose from hydroxyzine is most commonly characterized by hypersedation, but may also manifest as convulsions, stupor, nausea, and vomiting. 18 In cases of …, HYDROXYZINE EG doit être pris à la dose efficace la plus faible et pendant la durée de traitement la plus courte possible. Le comprimé n’est pas une forme adaptée à l’enfant de moins de 6 ans (risque de fausse route). Posologie. Adulte · Traitement symptomatique de l’anxiété : Un demi-comprimé (12,5 mg), un demi-comprimé (12,5 mg) …, Hydroxyzine is a medication that treats the symptoms of allergies and allergic reactions. It may also be used to treat anxiety. It works by blocking histamine, a substance released by the body during an allergic reaction. It’s a type of antihistamine. It may cause drowsiness., Hydroxyzine prescription patterns were followed for each patient from birth to age 5. Longitudinal patterns of use were compared in patients receiving only 1 prescription (short-term user), 2–4 prescriptions (intermediate user) and more than 4 prescriptions (long-term user). The frequency of specific mental and neuropsychiatric …, Hydroxyzine (Vistaril) is a first-generation antihistamine that was first approved in 1957.Today, it’s used to treat anxiety, itching due to allergies, and to help you relax before and after receiving general anesthesia.. In this guide, we’ll go over the typical hydroxyzine dosages for adults and children. But it's important to follow the instructions …, Hydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness. Hydroxyzine is an antihistamine available only wi..., Escitalopram, the (S)-enantiomer of citalopram, is a highly selective serotonin reuptake inhibitor. It is approved by the U.S. Food and Drug Administration (FDA) for treating major depressive disorder in adults and adolescents, as well as generalized anxiety disorder in adults. Escitalopram is sold under the brand names Lexapro and Cipralex., Small occasional doses of hydroxyzine would not be expected to cause any adverse effects in breastfed infants. Larger doses or more prolonged use may cause drowsiness and other effects in the infant or decrease the milk supply, particularly in combination with a sympathomimetic such as pseudoephedrine or before lactation is well …, Hydroxyzine is an antihistamine available only with a prescription. It is used to treat symptoms of allergies and motion sickness. Hydroxyzine overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose., F. ;. A simple high-performance liquid chromatographic method for detection of hydroxyzine in human plasma after overdose. ;. Journal of Pharmacological and ..., Overdose. Withdrawal and dependence. Expiration. What is hydroxyzine? Hydroxyzine is a generic prescription medication. It’s approved by the Food and Drug Administration (FDA) for the..., Jul 29, 2021 · Alprazolam is a benzodiazepine and belongs to the same family as lorazepam (Ativan) and clonazepam (Klonopin). This medication is FDA-approved to treat anxiety disorders (including GAD) and panic disorder. As with hydroxyzine, alprazolam is intended for short-term use — up to 4 months for anxiety disorders and up to 10 weeks for panic disorder. , Feeling confused. Rarely, a very bad skin reaction has happened with hydroxyzine injection. Signs include fever and many small skin spots within large areas of redness and swelling. Call your doctor right away if you have a rash or any of these signs. Tissue damage has happened with hydroxyzine injection., Oct 14, 2022 ... ... hydroxyzine or hydroxyzine metabolite, hydroxyzine/cetirizine/meclizine (not distinguished) metabolite, levocetirizine, loratadine ..., Hypotension, though unlikely, may be controlled with intravenous fluids and levarterenol or metaraminol. Do not use epinephrine as hydroxyzine counteracts its pressor action. Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific antidote., HydrOXYzine hydrochloride tablets, USP contains 10 mg, 25 mg, or 50 mg of hydrOXYzine hydrochloride, USP and are supplied as follows: 10 mg: White to off-white, round, biconvex, bevel edge, film-coated tablets debossed with ‘112’ on one side and plain on the other side., Hydroxyzine is a type of drug called an antihistamine. It works by attaching to histamine receptors (binding sites) in your body. This produces a calming effect that helps relieve anxiety and ..., What Happens If I Overdose With Hydroxyzine? If an overdose occurs call your doctor or 911. You may need urgent medical care. You may also contact the poison control center at 1-800-222-1222. Symptoms of overdose include severe drowsiness, dry mouth, difficulty urinating, headache, rapid heartbeat, confusion, impaired coordination, slow ... , Tremors are most likely to occur among recreational hydroxyzine users, cases of overdose, and/or anyone ingesting larger amounts than their nervous system can tolerate. Those prescribed supratherapeutic dosages should be most cognizant of this side effect. Weight gain: It is estimated that around 12% of all hydroxyzine users will gain …, For oral dosage form (capsules, tablets, or solution): For anxiety and tension: Adults—50 to 100 milligrams (mg) 4 times a day. Children 6 years of age and older—50 to 100 mg per day given in divided doses. Children younger than 6 years of age—50 mg per day given in divided doses. For management of allergic reactions:, Dec 17, 2022 · Hydroxyzine is a type of drug called an antihistamine. It works by attaching to histamine receptors (binding sites) in your body. This produces a calming effect that helps relieve anxiety and ... , Dosing: Adult. Antiemetic: IM: 25 to 100 mg/dose. Anxiety: Oral: Manufacturer’s labeling: 50 to 100 mg 4 times daily. Alternative recommendations (off-label dosing): 37.5 to 75 mg daily in divided doses (WFSBP [Bandelow 2008]; WFSBP [Bandelow 2012]) IM: Initial: 50 to 100 mg, then every 4 to 6 hours as needed. , Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific …, Hypotension, though unlikely, may be controlled with intravenous fluids and levarterenol or metaraminol. Do not use epinephrine as hydroxyzine counteracts its pressor action. Hydroxyzine overdose may cause QT prolongation and Torsade de Pointes. ECG monitoring is recommended in cases of hydroxyzine overdose. There is no specific antidote.