Hicope

Quick links to important sections

Hicope

Treatment option:

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Hicope

Hicope is a trade name for a synthetic, prescription-only medicine primarily used to relieve symptoms of anxiety and pruritus (itching). Its core component is the active pharmaceutical ingredient Hydroxyzine, which is classified as both an anxiolytic agent and a first-generation antihistamine.

Property Description
Active ingredient Hydroxyzine
Form Tablet, oral syrup, oral suspension
Pharmacological class Anxiolytic and First-Generation Antihistamine
Common use Relief of anxiety, tension, and itching (pruritus)
Origin Synthetic piperazine derivative

What Type of Medicine is Hicope (Hydroxyzine)?

Hicope's active ingredient, Hydroxyzine, belongs to the first-generation antihistamine class, chemically identified as a piperazine derivative. This classification is critical because, unlike newer antihistamines, Hydroxyzine readily influences the central nervous system (CNS), which is essential for its calming effects. This dual-action capability—both blocking histamine and affecting the CNS—distinguishes it from medications used exclusively for allergy relief. The medication is utilized for the management of anxiety and itching stemming from allergic conditions.


Composition and Available Forms of Hicope (Hydroxyzine)

Hydroxyzine is formulated as a single-ingredient product designed for oral administration, making it a versatile option for different patient groups, including pediatrics when prescribed as a syrup. The medication is available in multiple high-level dosage forms, including the solid tablet, as well as a liquid oral syrup or oral suspension. There is reliable systemic absorption of Hydroxyzine across these different oral forms, utilizing the active component typically contained as the dihydrochloride or hydrochloride salt.


General Purpose: Why is Hydroxyzine Classified as a Sedating Anxiolytic?

Hydroxyzine is classified as a sedating anxiolytic because its potent histamine blocking property is strongly associated with a noticeable sedative effect, a property clinically recognized in its class. This mechanism is utilized to promote relaxation and reduce tension in settings where emotional distress may manifest physically. The general purpose of this medicine is therefore centered on its ability to help manage conditions characterized by heightened anxiety or intense allergic pruritus that disrupt a patient’s well-being, utilizing its unique chemical structure to produce effects in the central nervous system.

Regulatory References

  1. NIH
  2. U.S. National Library of Medicine
  3. MedlinePlus

What side effects are possible with Hicope?

Possible Side Effects and Safety Information

The safety profile for Hicope (Hydroxyzine) is officially documented by government regulatory bodies, defining the scope of adverse reactions and required safety constraints. The most frequently observed effects are related to Central Nervous System (CNS) depression, with drowsiness and sedation being categorized as common or very common.

These CNS effects are often transitory, potentially becoming less pronounced upon continued therapy or dose adjustment. Other common reactions listed in regulatory documents include dry mouth (an anticholinergic effect), fatigue, and headache.

Serious Adverse Reactions and Safety Constraints

Official labeling emphasizes the potential for serious adverse reactions classified under Cardiac Disorders. The medication carries a documented risk of QT interval prolongation and Torsade de Pointes (TdP), which are rare but significant cardiac arrhythmias. Use is contraindicated in patients with a known history of acquired or congenital QT prolongation or those with existing risk factors for cardiac arrhythmia, such as uncorrected electrolyte imbalance.

Very rare, but severe, reactions classified under Skin and Subcutaneous Tissue Disorders, such as Acute Generalized Exanthematous Pustulosis (AGEP), have also been reported in post-marketing surveillance.

Population-Specific Safety Notes

Regulatory documents highlight specific safety considerations for certain patient groups. Older adults are more susceptible to CNS and anticholinergic side effects and require caution. The drug is contraindicated in early pregnancy and is not recommended for nursing mothers. Caution is also advised when the drug is used in patients with severe hepatic or renal impairment.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Hicope (Hydroxyzine) overdose emphasizes both severe Central Nervous System (CNS) effects and life-threatening cardiac risk. It is mandatory to seek immediate medical attention for any suspected overdose.

Aspect Official Regulatory Documentation
Documented Manifestations The most common sign is hypersedation. Other reported signs include stupor, convulsions, nausea, vomiting, agitation, and confusion.
Severe Outcomes Overdose may lead to life-threatening cardiovascular complications, including QT prolongation and the risk of Torsade de Pointes (TdP). Profound unresponsiveness (coma) is also reported.
Urgent Action Required You must seek immediate medical attention and contact a Poison Control Center. Call emergency services (911 or local equivalent) for severe symptoms.
Antidote and Treatment There is no specific antidote known for Hydroxyzine overdose. Management is symptomatic and supportive, and ECG monitoring is recommended. The use of epinephrine is contraindicated for hypotension, as Hydroxyzine counteracts its pressor action.
Population Note Elderly patients are more susceptible to overdose effects, such as increased confusion and over sedation, due to physiological changes.

The required immediate medical response is based on the lack of a specific antidote and the potential for severe, sudden cardiac events (TdP), which necessitate urgent specialized supportive care. Treatment protocols mandate continuous observation, monitoring of vital signs, and strict adherence to label-based interventions, such as the prohibition of certain vasopressors.

Therapeutic Uses of Hicope

What Hicope Treats: Main Uses and Benefits

Hicope is a prescription medication generally used to provide symptomatic relief across several key domains where patients experience symptoms related to heightened physiological activity or physical discomfort. It is applied in contexts where additional symptomatic support is needed for managing specific conditions.

It is relevant in areas where short-term symptom management is appropriate, including the symptomatic relief of anxiety and tension associated with psychoneurosis, the management of pruritus (intense itching) stemming from allergic conditions, and for pre-procedural sedation. The medication is considered relevant for managing symptoms that interfere with daily comfort.

“It is commonly used to help with multiple symptoms, and may assist in easing both tension and symptoms related to inflammatory or irritative states.”

This support helps ease the overall symptom burden, particularly for patients experiencing heightened apprehension related to medical interventions. The medication is applied in settings where short-term symptom stabilization is important and supports general well-being.


Quick Fact: Relief for Disruptive Itching Hicope is applied across conditions involving inflammatory or irritative processes, such as chronic urticaria and dermatitis, to help manage disruptive itching where symptoms may interfere with daily functioning and affect sleep patterns.

Regulatory References

  1. NIH MedlinePlus overview of Hydroxyzine uses

Eligibility and Restrictions for Use

Who Can and Cannot Use Hicope?

The population eligibility for Hicope (Hydroxyzine) is determined strictly by regulatory guidelines, focusing on absolute contraindications and conditional restrictions.

Populations That Must Not Use Hicope

Hydroxyzine is contraindicated and must not be used by individuals with:

  • A known hypersensitivity to hydroxyzine, its metabolites (like cetirizine), or any related piperazine derivatives.
  • A history of prolonged QT interval (acquired or congenital) or those with uncorrected risk factors for cardiac arrhythmia.
  • Pregnancy (especially the first trimester) and breastfeeding mothers.
  • The metabolic disorder Porphyria.

Age and Condition-Based Restrictions

Population Group Regulatory Status
Adults and Children ge 6 years Approved for use.
Elderly Patients Use is not recommended or is restricted to a reduced maximum daily dose.
Hepatic or Severe Renal Impairment Mandatory dose reduction is required due to altered drug clearance.

Use of Hicope also requires caution in patients with conditions aggravated by its anticholinergic properties, such as angle-closure glaucoma or prostatic hyperplasia.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section details official interaction information for Hicope (Hydroxyzine) as documented by governmental regulatory authorities.

Pharmacodynamic and Contraindicated Combinations

Co-administration with other medicines that cause QT interval prolongation is formally contraindicated due to the additive risk of serious cardiac arrhythmia. Regulatory documents also prohibit co-administration with products containing Cetirizine, a major metabolite of Hydroxyzine. Concurrent use with Central Nervous System (CNS) depressants, including alcohol, results in additive CNS depression, potentiating sedative effects.

Metabolic and Exposure-Altering Interactions

Hydroxyzine is metabolized by the CYP3A4/5 enzyme pathway. Co-administration with potent CYP3A4/5 inhibitors will increase Hydroxyzine's plasma concentration and systemic exposure, which may heighten the risk of cardiac toxicity. Additionally, Hydroxyzine is documented to inhibit CYP2D6, which can increase the exposure of other medicines metabolized by this enzyme. Grapefruit and grapefruit juice may also contribute to increased drug levels by inhibiting CYP3A4/5.

Other Documented Interactions and Cautions

Official labeling notes that Hydroxyzine counteracts the pressor action of Epinephrine. For elderly patients, reduced elimination of Hydroxyzine increases the risk of interaction-related effects, necessitating lower starting doses as specified by regulatory guidance.

Mechanism of Action

Central Nervous System (CNS) Arousal Suppression

Hydroxyzine's primary mechanism involves inverse agonism at the central Histamine mathbfH1 receptors in the brain. This action directly suppresses the histaminergic signaling pathways that regulate wakefulness and arousal, initiating a rapid CNS depression which results in a sedative physiological effect. This effect is supported by Hydroxyzine's weaker antagonism at Serotonin mathbf5-HT2A and mathbfalpha1-Adrenergic receptors, which further alters neural signaling.


Peripheral Histamine Blockade and Tissue Response Modulation

Simultaneously, the drug acts as a competitive antagonist on mathbfH1 receptors in peripheral tissues (e.g., skin and blood vessels). This mechanism physically blocks histamine, a key inflammatory mediator released by mast cells, from initiating its local signaling cascade. This targeted pathway interference reduces the physiological signaling resulting from mediator release, leading to changes in peripheral mathbfH1 activity that influence the drug’s overall effect profile.


⏱️ Mechanism Limitations and Onset Factors

The lipophilicity of Hydroxyzine facilitates its quick entry into the brain, resulting in rapid mathbfH1 target occupancy and a fast onset of its central effects. However, the mechanism’s CNS effects can be subject to adaptive CNS changes, which can lead to tolerance over time. Furthermore, the active metabolite, Cetirizine, lacks the parent drug's high capacity for CNS penetration, meaning the central mechanism is largely constrained to the parent molecule.

Dosage and Administration Information

Administration Scope

The medicine's active component, Hydroxyzine, is administered via the oral route (using tablets, capsules, or syrup/solution) and the Intramuscular (IM) injection route. Parenteral administration must be strictly IM; intravenous, subcutaneous, or intra-arterial use is forbidden.

Instruction Entity Standard Administration Guidelines
Dosing Schedule Adult Anxiety Relief: 50 mg to 100 mg per dose, up to four times daily (QID). Adult Pruritus: 25 mg per dose, three to four times daily (TID or QID). Adult Sedation: Single dose of 50 mg to 100 mg.
Timing in Relation to Meals May be taken with or without food.
Preparation Requirements Oral liquid forms must be shaken well before use. The IM solution is administered directly into a large muscle mass and should not be diluted.
Age-Group Rules Older Adults: Dose selection must start at the low end of the range. For this group, the maximum recommended daily dose is 50 mg. Children: Doses are calculated based on age or body weight and are given in divided doses throughout the day.

Instruction Classifications

Hydroxyzine is intended for the shortest possible duration of treatment at the lowest effective dose. For initial administration via IM injection, subsequent doses should transition to oral therapy when practical. The effectiveness of continuous use exceeding four months has not been systematically established.

Resulting Procedural Structure

Standard use protocols prioritize divided daily dosing, requiring the patient or administrator to:

  • Determine the correct starting milligram dose based on the specific condition and age group.
  • Ensure the daily dose is divided and taken up to four times daily, with liquid forms properly prepared (shaken well).
  • Periodically reassess the need for continued therapy, ensuring its duration remains as short as possible.

Connection to the overall use protocol: This structure mandates precise adherence to specified dose ranges and frequency, emphasizing caution in dosing older adults and those with organ impairment. The protocol is defined by the requirement for short-term, multiple-daily dosing via an approved oral or intramuscular route.

Recent Clinical Evidence

Hicope: Recent Clinical Evidence

Hicope, which contains the active ingredient hydroxyzine, is an antihistamine with established clinical uses in the symptomatic treatment of anxiety and pruritus (itching) related to allergic skin conditions.


Efficacy in Generalized Anxiety Disorder (GAD)

Clinical research has focused on hydroxyzine's use for anxiety management. A Cochrane review of randomized controlled trials (RCTs) found that hydroxyzine was associated with a greater reduction in anxiety symptoms compared to placebo. The review noted that the medication's overall efficacy and tolerability were generally comparable to other anxiolytic agents, though it was also linked to higher rates of drowsiness.

Some studies, including a double-blind trial, have shown that hydroxyzine may be associated with improvements in anxiety symptoms as early as the first week of treatment. However, the efficacy for long-term daily use (beyond four months) has not been widely studied.


Management of Chronic Pruritus

Hydroxyzine is frequently used for managing chronic pruritus associated with dermatological causes, such as chronic urticaria, atopic dermatitis, and contact dermatitis.

Studies, including a real-world observational study, have reported that hydroxyzine use was associated with significant improvements in both pruritus symptoms and the patient's quality of life over a 12-week period. This effect is attributed to its ability to block histamine receptors. In clinical guidelines, hydroxyzine is commonly cited as a management option for pruritus due to its combined anti-itch and calming properties.

Condition Studied Primary Finding Research Type
Generalized Anxiety Disorder Symptom reduction compared to placebo Randomized Controlled Trials (RCTs)
Chronic Allergic Pruritus Reported reduction in itch severity and improvement in quality of life Observational and Clinical Studies

Frequently Asked Questions (FAQ)

Common questions about Hicope (FAQ)


Q: How quickly can a person expect Hicope to start working for anxiety symptoms?

According to official product information, the central effects of the drug are described as having a rapid onset following oral administration. Regulatory documents describe the time window for the onset of central effects as being 15 to 60 minutes.


Q: How long do the effects of Hicope typically last after taking one dose?

Official dosing information for Hicope suggests the immediate effects of a single dose commonly last up to four to six hours. This duration is consistent with the requirements for a divided daily dosing schedule for certain conditions.


Q: What is the difference between Hicope (Hydroxyzine) and other common antihistamines like Benadryl (Diphenhydramine) or Zyrtec (Cetirizine)?

Official classification lists hydroxyzine as a first-generation antihistamine. This chemical group readily influences the central nervous system (CNS), which is linked to its calming and sedative effects. Newer, second-generation antihistamines generally do not have this same level of CNS penetration.


Q: Can Hicope lead to physical dependence or addiction?

Regulatory bodies do not classify hydroxyzine as a controlled substance. Official sources indicate that the drug is not considered to have a significant potential for abuse, physical dependence, or addiction.


Q: What is the risk of having heart-related side effects, like a fast or irregular heartbeat, with Hicope?

Regulatory documents state that serious adverse effects include cardiac issues, which may manifest as a fast, pounding, or irregular heartbeat. This type of symptom can be associated with serious cardiac effects, such as QT interval prolongation, and should be reported to a healthcare provider promptly.


Q: Can a person take Hicope while pregnant or planning to become pregnant?

Official sources indicate the drug is contraindicated during the first trimester of pregnancy. Furthermore, regulatory guidance requires patients to disclose to their prescriber if they are planning to become pregnant or if they become pregnant during therapy.


Q: Can children or infants safely use Hicope?

The use of Hicope is approved for children aged 6 years and older, with specific guidelines provided for appropriate dosing. The medicine is also approved for use in children under 6 years of age, with the daily dose calculated based on the child's body weight.


Q: Is it possible to develop a tolerance to the calming effects of Hicope over time?

Official product information describes that the drug's mechanism of action in the central nervous system (CNS) can be subject to adaptive changes over time. These CNS changes may result in a patient developing tolerance to the calming effects.


Q: Can Hicope cause a person to feel confused or disoriented?

Confusion is listed in official adverse reaction reports as a potential side effect, particularly when the drug is used in older adults. Regulatory information advises that these symptoms, if experienced, should be reported to a healthcare provider.


Q: Does Hicope interact with herbal or dietary supplements?

Official patient guides require that all medicines and products be disclosed to a healthcare provider, including prescription and over-the-counter (OTC) medicines. This caution specifically extends to products such as herbal remedies and dietary supplements.


Q: Can Hicope be taken 'as needed' or does it need to be taken every day?

Depending on the specific condition being addressed, official administration guidelines indicate the drug is sometimes described as being taken on an 'as needed' basis. For other conditions, it is commonly prescribed with divided daily dosing.


Q: Does Hicope interact with medications used for Alzheimer's disease?

The drug has anticholinergic properties, which means it can interfere with certain signaling systems in the body. Official warnings recommend caution when co-administering it with other medications that share this anticholinergic effect, as the combination may lead to increased adverse effects.


Q: Are there any long-term risks associated with taking Hicope daily for an extended period?

Official documents state that the effectiveness of continuous use exceeding four months has not been systematically established in clinical studies. Regulatory bodies emphasize that the medication is to be used for the shortest possible duration necessary.


Q: Does Hicope interact with common over-the-counter pain relievers like Tylenol (Acetaminophen) or Advil (Ibuprofen)?

Official patient guides require that all over-the-counter (OTC) medicines be disclosed to a prescriber before starting or continuing Hicope therapy. This caution includes common pain relievers.


Q: What happens if a person forgets to take an Hicope dose?

Official regulatory guidance addresses the procedure for a missed dose. Specific actions are determined by the time remaining until the next scheduled dose, and the principle of avoiding dose doubling is emphasized to the patient.


Q: Is it true that Hicope should be avoided by people with an enlarged prostate?

The official guidance recommends caution when the drug is administered to patients with conditions aggravated by its anticholinergic properties. One such condition noted is prostatic hyperplasia, commonly known as an enlarged prostate.


Q: What specific ingredients in Hicope should a person be aware of for potential allergies?

Regulatory labeling states that the drug is contraindicated in individuals with a known hypersensitivity to the active ingredient hydroxyzine, its major metabolite cetirizine, or any related piperazine derivatives. These are the key components listed for potential allergies.


Q: Why do some people experience constipation when taking Hicope?

Official reports of adverse reactions list constipation as a possible side effect of the medication. This effect is thought to be related to the drug's anticholinergic properties.


Q: Is Hicope sometimes used as a treatment before or after surgery?

Official product labeling indicates that the drug is indicated for use as an adjunct therapy in pre- and post-operative and pre- and post-partum settings. Its purpose in this context is to help relieve anxiety and control emesis (vomiting).


Q: Does Hicope pose a risk for falls, particularly in older adults?

Official patient guidance notes that caution is required, particularly in older adults, due to the potential for common side effects like sedation and dizziness. These effects may increase the risk of accidental injury or falls.


Q: Is Hicope safe for use in patients with a history of seizures?

Official patient information requires that individuals with a history of seizures disclose this to their doctor before taking the medicine. This is due to the drug’s potential effects on the central nervous system.


Q: Is Hicope used for treating nausea or vomiting?

The medication is indicated in official labeling as being effective in controlling nausea and vomiting. However, this indication excludes nausea and vomiting associated with pregnancy.


Q: What is the common expectation for how long a person needs to continue treatment with Hicope?

Regulatory guidance emphasizes that the medication is to be used for the shortest possible duration of treatment at the lowest effective dose. This approach is intended to minimize the potential for side effects and long-term uncertainty.


Q: Is Hicope generally described as being more sedating than other antihistamines?

Hydroxyzine is classified as a first-generation antihistamine that is known to readily influence the central nervous system (CNS). This chemical property is directly linked to its calming and pronounced sedative effects.

How should Hicope be stored and disposed of?

Hicope (hydroxyzine) must be stored under specific conditions mandated by regulatory labeling to maintain its stability and safety. The medicine, in all forms, requires storage at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F). The product must be protected from freezing and kept in its original container with the cap tightly closed.

Mandatory safety instruction requires that the medication is kept out of the sight and reach of children.

For disposal of unused or expired product, the preferred method is a medicine take-back program. Hicope is not among the small number of medicines recommended by regulators for flushing. If a take-back option is unavailable, the medicine should be mixed with an unappealing substance, sealed in a bag, and then discarded in the household trash, following official guidance.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Equivalent of Hicope found in:

A-Z Index: