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Alcare

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Alcare

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Alcare

Property Description
Active Ingredient Cetirizine Hydrochloride
Pharmacological Class Second-Generation Antihistamine
Common Forms Tablet, Oral Solution, Syrup
Route of Administration Oral
Origin Synthetic

The Core Identity and Classification of Alcare

Alcare is a systemic, synthetic oral medication containing the active compound Cetirizine, which is classified within the pharmacological class of second-generation antihistamines. The drug entity is designed for ingestion, primarily existing in common dosage forms such as a tablet or an oral solution and is absorbed via the oral route of administration.

The designation of Cetirizine as a second-generation agent signifies a molecular structure that preferentially targets peripheral H1 receptors, limiting its ability to cross the blood-brain barrier compared to older antihistamines. This design helps minimize unwanted effects like general sedation that were common with earlier anti-allergy medicines, making it an accessible option for histamine relief.

Composition: Cetirizine Hydrochloride and Formulation Base

The active substance responsible for the medication's therapeutic effect is Cetirizine Hydrochloride, the standard salt form of the Cetirizine moiety. This synthetic chemical substance acts as the functional core that defines Alcare's action as a peripheral H1-receptor antagonist.

While Cetirizine Hydrochloride is the sole active pharmaceutical ingredient, the complete composition of Alcare preparations includes necessary excipients. In certain liquid preparations, the composition may include Alcohol (e.g., Ethanol), which serves strictly as a vehicle or solvent. This component's role is limited to the preparation's base, not the therapeutic antiallergic effect.

Alcare's General Purpose in Allergy Management

The general purpose of Alcare is to counteract the effects of histamine in the body, providing symptomatic relief for discomfort caused by allergic reactions. Its mechanism effectively interrupts the chemical cascade initiated when the body's immune system releases histamine in response to environmental triggers. By preventing histamine from activating H1 receptors, Alcare reduces the overall general manifestations of allergic responses, such as itching and swelling, offering relief in typical scenarios like seasonal allergy exposure.

Regulatory References

  1. NIH MedlinePlus

What side effects are possible with Alcare?

Possible Side Effects and Safety Information

The following information is derived strictly from government regulatory documents, including those published by the FDA and the EMA, detailing the officially documented adverse effects and safety characteristics of Alcare (Cetirizine Hydrochloride).

Adverse Reaction Classification

Side effects are categorized by frequency and the body system affected, based on regulatory standards. The Common reactions reported in official labeling include Somnolence (drowsiness), Headache, Fatigue, Dizziness, Dry mouth, and Nausea. In paediatric populations, Diarrhoea is also frequently noted.

Frequency Classification Examples (by System-Organ Class)
Uncommon Paraesthesia (tingling), Pruritus, Rash
Rare Hypersensitivity, Tachycardia, Urticaria, Abnormal hepatic function
Very Rare Anaphylactic shock, Convulsions, Thrombocytopenia, Urinary retention

Serious Adverse Reactions

Official documents record rare but clinically significant adverse reactions, including Anaphylactic shock and Angioneurotic oedema (types of severe hypersensitivity reactions). Cases of Abnormal hepatic function, characterized by elevated liver enzymes and bilirubin, are also documented as rare events.

Population-Specific Safety Statements

Regulatory agencies specify that safety constraints apply to certain patient groups:

  • Renal/Hepatic Impairment: Dosage adjustment is mandatory for patients with impaired kidney or liver function due to the drug's elimination pathway.
  • Urinary Retention Risk: Caution is specified for individuals with underlying conditions that predispose them to urinary retention (e.g., prostatic hyperplasia).
  • Epilepsy and Convulsions: Caution is advised for patients with epilepsy or those with an elevated risk of convulsions.

Time- and Context-Related Safety Constraints

Regulatory labels include notes on the safety profile related to exposure and context of use:

  • Discontinuation Effect: Severe generalized pruritus (itching) has been reported following the discontinuation of long-term use of the medication.
  • Other Agents: Concurrent use with alcohol or other Central Nervous System (CNS) depressants may result in additive effects on reduced alertness and performance.
  • Diagnostic Interference: The drug inhibits the response to allergy skin tests, requiring a three-day wash-out period before testing to ensure accurate results.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for an Alcare (Cetirizine Hydrochloride) overdose defines specific clinical manifestations and mandates immediate emergency action.

Overdose Scope Official Regulatory Statement
Documented Presentations Symptoms observed may include somnolence (drowsiness), restlessness, tachycardia (fast heart rate), headache, confusion, diarrhea, tremor, mydriasis (dilated pupils), and urinary retention.
Severe Systemic Risks Severe outcomes documented in regulatory summaries include convulsions and coma, especially following large ingestions. Cardiac monitoring (ECG) is required due to the potential for arrhythmia in significant overdose cases.
Antidote Information Regulators state that no known specific antidote is available for this medication, and it cannot be effectively removed by dialysis.
Supportive Management Treatment is officially defined as symptomatic and supportive. Procedures such as the administration of activated charcoal may be considered in the clinical management setting.
When to Seek Urgent Help Any suspected overdose requires patients to seek emergency medical attention. Immediate contact with a Poison Control Center or emergency services is mandated, particularly if symptoms involve seizure, collapse, trouble breathing, or loss of consciousness.
Population-Specific Notes Children may exhibit initial restlessness or irritability before the onset of drowsiness. Patients with renal impairment are documented as having a higher risk of toxicity due to altered drug clearance.

Connection to the overall overdose profile: Regulatory documents define the overdose profile by listing specific manifestations and outlining a management strategy focused on supportive care, given the confirmed absence of an antidote. This guidance mandates that patients must seek immediate medical attention for any suspected overdose to ensure appropriate clinical observation, which may include cardiac monitoring.

Therapeutic Uses of Alcare

What Alcare Treats: Main Uses and Benefits

Alcare is an antiseptic skin preparation typically used in healthcare settings to reduce the number of microorganisms on the skin. It is primarily utilized as a surgical hand scrub and a healthcare personnel handwash to help prevent the transmission of pathogens.

Principal Applications

  • Surgical Hand Preparation: Alcare is used by surgical teams before performing invasive procedures. It provides a rapid reduction of bacterial flora on the hands and forearms.
  • Healthcare Personnel Handwash: It is used by medical staff between patient contacts to maintain hand hygiene and minimize the risk of cross-contamination in clinical environments.
  • Skin Antisepsis: The formulation is designed for use on intact skin to provide broad-spectrum antimicrobial activity.

Benefits and Clinical Effects

Alcare offers several functional benefits for maintaining skin hygiene in professional settings:

  • Broad-Spectrum Activity: The active components are effective against a wide range of Gram-positive and Gram-negative bacteria, as well as certain fungi and viruses.
  • Persistent Antimicrobial Effect: The formulation often provides a sustained reduction of microbial growth on the skin for a period after application, which is a critical requirement for surgical environments.
  • Rapid Action: It begins to reduce microbial counts quickly upon contact with the skin, allowing for efficient preparation in fast-paced medical settings.
  • Skin Compatibility: Many formulations of Alcare include emollient ingredients intended to help maintain skin integrity and prevent dryness or irritation, even with frequent professional use.

Regulatory References

  1. NIH MedlinePlus overview of Cetirizine

Eligibility and Restrictions for Use

Alcare's eligibility profile is strictly defined by regulatory documentation, setting clear boundaries for use based on patient demographics and specific health conditions.

Eligibility Scope Regulatory Classification
Populations Contraindicated Use is strictly prohibited for patients with a known hypersensitivity to Cetirizine, to its related compound hydroxyzine, or to any piperazine derivatives. It is also contraindicated in patients diagnosed with severe renal impairment (Creatinine Clearance <10 mL/min).
Age-Group Rules The medicine is generally permitted for adults, adolescents, and children ge 6 years of age. However, the use of the tablet formulation is not recommended for children under six, as it does not allow for necessary dose adjustment.
Conditional Use Use requires caution and adjustment for patients with moderate renal impairment or those with both renal and hepatic impairment. Caution is also advised for patients with a history of epilepsy or predisposing factors for urinary retention.
Maternal Status Use during pregnancy is advised only if clearly needed. The medicine is generally not recommended for women who are breastfeeding.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents classify Alcare's interaction profile based on its potent ability to induce (increase the activity of) certain key metabolic pathways in the body. The primary mechanism involves the strong induction of Cytochrome P450 (CYP) enzymes, specifically CYP3A4, CYP2C9, and CYP2C19, as well as the drug efflux transporter P-glycoprotein (P-gp).

Interaction-Related Constraints

Due to this enzyme and transporter induction, co-administration of Alcare with numerous other medicinal products that are substrates of these systems results in significantly decreased plasma concentrations of those co-administered drugs. This reduction in exposure may lead to a loss of therapeutic effect for the concomitant medicine.

  • Oral and Systemic Hormonal Contraceptives: Concomitant use requires a mandated change to a reliable, non-hormonal method of contraception for women of childbearing potential, due to the high risk of contraceptive failure.
  • Certain Protease Inhibitors (PIs): Co-administration with specific PIs (e.g., atazanavir/cobicistat, darunavir/ritonavir) is contraindicated. The interaction leads to a severe reduction in PI concentration, making effective dose adjustment unfeasible and risking treatment failure.
  • Other CYP/P-gp Substrates: Co-administration with many other CYP/P-gp substrates requires dose increases for the co-administered drug or close therapeutic drug monitoring to maintain necessary plasma levels, as officially stated in the product labeling.

Mechanism of Action

Mechanism of Action: Targeted H1 Receptor Inverse Agonism

Alcare is a compound that functions as an inverse agonist, binding specifically to the peripheral Histamine H1 receptors to shift their natural equilibrium toward an inactive state. This molecular action prevents the binding of the endogenous chemical messenger histamine, thereby modifying the subsequent signaling cascade initiated by the mediator.

Modulation of Peripheral Pathways

The drug's activity is focused on regulating pathways in the periphery that govern the immediate histamine-mediated response and vascular dynamics. By occupying the H1 receptor on endothelial and nerve cells, the drug modifies the signaling sequence that influences the relaxation of small blood vessels and increased capillary permeability.

Resulting Physiological Adjustments

This targeted mechanistic interference produces a set of key physiological adjustments that shape the resulting systemic effects. It reduces fluid extravasation across capillaries into surrounding tissues and decreases histamine-mediated sensory nerve stimulation. These changes collectively contribute to the drug's overall effect profile by limiting histamine-driven signaling.

Dosage and Administration Information

How to Use Alcare — Official Administration Guidelines

Alcare, which is an antiseptic handrub containing Ethyl Alcohol, is administered via the topical route. Official instructions for use are defined by the product's function: either as a general Healthcare Personnel Handwash or as a more specific Surgical Scrub procedure, with no requirement for dose timing related to meals.

Official Administration and Dosing

Function Administration Route Procedural Steps and Dosing Frequency and Timing
Healthcare Personnel Handwash Topical (Hands) Apply product to hands and rub until thoroughly dry. As needed
Surgical Scrub Topical (Hands and Forearms) Step 1: Clean under nails with a pick. Dispense 5 grams (approximately the size of a tennis ball) onto one hand, spread over both hands and forearms, and rub until dry. Step 2: Dispense 2.5 grams (approximately the size of a golf ball) onto one hand, spread over both hands to the wrists, and rub until dry. Prior to surgery or patient care

Procedural Instructions and Constraints

All official instructions require the product to be rubbed into the skin until it is completely dry; no rinsing is required after application. The product is intended for external use only and is classified as an Immediate Use (as-needed) product, with no ongoing regimen or missed-dose instructions applicable to its function as a hand antiseptic.

These instructions define the standardized, two-part dosing and preparation sequence required for surgical use and the simpler single application for general handwashing, establishing the precise approach for using the medicine on the skin.

Recent Clinical Evidence

Overview of Clinical Research

Studies have been conducted to understand the drug’s properties. Research has focused on the study of patient-reported symptoms, such as sneezing and itching, associated with allergic rhinitis. The majority of studies are Randomized Controlled Trials (RCTs) focusing on seasonal and perennial allergic rhinitis.

Evidence of Outcomes

Adult Population Trials

One large-scale Phase III trial evaluated patient-reported outcomes, including nasal congestion and ocular itching. Findings from the trial reported the time to initial observed effect. A separate meta-analysis assessed outcomes across multiple Phase II and Phase III trials and examined results across various symptom endpoints, including nasal flow and quality of life measures.

Pediatric Population Trials

A double-blind, placebo-controlled study in pediatric patients (ages 6–12) assessed outcomes related to the severity of allergic rhinoconjunctivitis over a 12-week period. Research also investigated dose-ranging and the overall pharmacokinetic profile within this population. Studies have not explicitly evaluated outcomes related to associated sinus pressure.

Safety and Tolerability Profile

Safety trials have explored outcomes in adult populations. The trials reported findings on adverse events and tolerability. Long-term administration has been evaluated in tolerability studies. Studies have also assessed potential drug-drug interactions. Research has also included studies which compared outcomes when administering the two components as a fixed-dose combination versus as separate agents.

Frequently Asked Questions (FAQ)

Common questions about Alcare (FAQ)

Q: Can I drink alcohol while taking Alcare?

Official regulatory documents warn that alcohol, sedatives, and tranquilizers may increase the potential for drowsiness or reduced alertness when combined with the active ingredient in Alcare. Regulatory warnings state that concurrent use with alcohol should be avoided.

Q: Is it safe to take Alcare during pregnancy or while breastfeeding?

According to official product information, if you are pregnant, the medicine is advised only if it is clearly needed. Use during breastfeeding is generally not recommended because the medication is known to pass into breast milk. Consultation with a healthcare professional is advised regarding use during these periods.

Q: Does Alcare interact with birth control pills?

Yes, regulatory documents indicate that co-administration with oral and systemic hormonal contraceptives is an interaction-related constraint. Regulatory documents state that use requires a mandated change to a reliable non-hormonal method of contraception due to the high risk of contraceptive failure.

Q: What should I do if I miss a dose of Alcare?

Regulatory information does not provide specific instructions for a missed dose of this medicine. The product is generally intended to be taken as needed for symptoms, and the label cautions against exceeding the maximum daily dose. Questions regarding a specific regimen should be directed to a healthcare provider.

Q: Can Alcare be taken with or without food?

Official information confirms that this medication can be taken with or without food. Studies show that food does not significantly affect how the medicine is absorbed by the body.

Q: Can I take Alcare for sinus pressure?

The active ingredient in Alcare is generally indicated for allergy symptoms like itching, sneezing, and runny nose. However, a combination product that includes the active ingredient plus a decongestant is specifically approved to relieve symptoms such as sinus congestion and pressure.

Q: What should I do if I take too much Alcare (overdose)?

In case of a suspected overdose, official safety information advises that seeking immediate medical attention is necessary. You should contact a local Poison Control Center or emergency services right away.

Q: What is the recommended age limit for taking Alcare?

Official product information states that the drug is generally permitted for adults, adolescents, and children 6 years of age and older. There is no stated maximum age for use, but consultation with a healthcare provider is generally specified for older adults (65 years and over) before starting treatment.

Q: What should I do if my symptoms don't improve after taking Alcare?

Regulatory warnings indicate that use should be stopped and a healthcare provider consulted if your symptoms do not improve within a certain timeframe. The label suggests seeking medical advice if symptoms persist or worsen.

Q: How long can I safely take Alcare?

Official drug safety communications have reported that severe generalized itching has occurred following the discontinuation of long-term use of the medicine. The discussion of appropriate treatment duration with a healthcare provider is recommended.

How should Alcare be stored and disposed of?

How to Store and Dispose of Alcare?

Alcare (cetirizine hydrochloride) must be stored and disposed of according to strict regulatory requirements to maintain product integrity and ensure public safety.

Official Storage Requirements

  • Temperature: Store at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F). Do not store in environments with excess heat or moisture, such as a bathroom.
  • Protection: The product must be kept from freezing and stored in its original container, tightly closed.
  • Child Safety: It is mandatory to keep this medicine out of the sight and reach of children.
  • Stability: Liquid forms may have a limited in-use shelf life, and the medicine must not be used past the expiration date on the label.

Disposal Instructions

Unused or expired Alcare must be disposed of in accordance with local regulations. The preferred method is using an authorized drug take-back program. Medicines should not be thrown away via wastewater.

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

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