Product image of Hydroxyzine Orifarm (Hydroxyzine Hydrochloride) supplied by GNH India

Hydroxyzine Orifarm

Active Ingredient:
Hydroxyzine Hydrochloride
Origin:
EU

Hydroxyzine Orifarm (Hydroxyzine Hydrochloride)

Hydroxyzine Hydrochloride, the active ingredient in Hydroxyzine Orifarm, is a first‑generation antihistamine presented as an oral tablet for oral administration. It acts on peripheral H1 receptors and is employed to relieve allergic skin conditions, pruritus, anxiety, sedation and nausea in adult patients, providing both antihistaminic and calming effects.

GNH India supplies Hydroxyzine Orifarm as a licensed, GDP‑compliant international pharmaceutical supplier, delivering the product to hospitals, pharmacies and clinics worldwide through regulated distribution channels and ensuring quality compliance with EU standards.

Manufacturer / TM Owner

Orifarm Generics A/S

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Indications & Clinical Uses

  • Hydroxyzine Orifarm is a first‑generation antihistamine that blocks H1 receptors, reducing allergic and related symptoms.
  • Allergic skin conditions: reduces redness, swelling and itching associated with urticaria and other dermal allergies.
  • Pruritus: alleviates intense itching caused by dermatologic or systemic conditions.
  • Anxiety: provides mild sedation that can help manage short‑term anxiety episodes.
  • Sedation: induces calming effects useful before medical procedures or for sleep support.
  • Nausea: helps control nausea and vomiting related to allergic reactions or motion sickness.

How It Works

  • Hydroxyzine Hydrochloride selectively antagonizes peripheral H1 histamine receptors, preventing histamine‑induced vasodilation, increased vascular permeability and sensory nerve stimulation. Its additional anticholinergic activity contributes to reduced secretions, while central sedative effects arise from inhibition of neuronal activity in the brainstem. The combined actions result in relief of allergic manifestations, itching, anxiety and nausea. These pharmacologic properties also diminish central excitation, producing a calming effect without significant anti‑inflammatory activity.

Side Effects

Hydroxyzine Orifarm may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

  • Drowsiness: feeling of sleepiness or reduced alertness.
  • Dry mouth: decreased salivation leading to a dry sensation.
  • Dizziness: light‑headed feeling, especially when standing quickly.
  • Blurred vision: temporary visual disturbances.
  • Constipation: slowed gastrointestinal motility.
  • Headache: mild to moderate head pain.

Serious or Rare Side Effects

  • Cardiac arrhythmia: irregular heart rhythm requiring medical attention.
  • Severe hypotension: marked drop in blood pressure.
  • Hepatic dysfunction: elevated liver enzymes or jaundice.
  • Allergic reactions: rash, swelling, or anaphylaxis.
  • Neuroleptic malignant syndrome: rare but life‑threatening reaction with fever and muscle rigidity.

Precautions & Warnings

When prescribing Hydroxyzine Orifarm, clinicians should observe several precautions to ensure safe use.

  • Pregnancy: use only if potential benefit justifies the risk, as safety data are limited.
  • Elderly patients: start with lower doses and monitor for increased sedation and falls.
  • Concomitant CNS depressants: avoid excessive drowsiness by limiting combined use.
  • Driving and machinery: advise patients not to operate vehicles or heavy equipment until they know how the drug affects them.
  • Pre‑existing cardiac disease: monitor heart rhythm and blood pressure during therapy.
  • Store at below 25°C: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

Hydroxyzine Orifarm can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

  • Alcohol: combined use may cause profound sedation and respiratory depression.
  • Opioids or other CNS depressants: risk of excessive drowsiness, respiratory depression, and impaired coordination.
  • Anticholinergic agents: additive anticholinergic effects may lead to severe dry mouth, constipation, or urinary retention.

Moderate Interactions (Monitor Closely)

  • Other antihistamines: may increase sedation and anticholinergic burden.
  • CYP3A4 inhibitors (e.g., erythromycin, ketoconazole): can raise hydroxyzine plasma levels, requiring dose adjustment.
  • CYP3A4 inducers (e.g., rifampicin, carbamazepine): may reduce hydroxyzine effectiveness.

Frequently Asked Questions

Hydroxyzine Orifarm contains hydroxyzine hydrochloride, a first‑generation antihistamine. It is prescribed to manage allergic skin reactions such as urticaria, to relieve intense itching (pruritus), to provide short‑term relief of anxiety or sedation before procedures, and to control nausea associated with allergic responses. The medication is administered orally and is available only with a prescription.

Hydroxyzine works by selectively blocking peripheral H1 histamine receptors, which prevents histamine‑mediated vasodilation, increased vascular permeability and sensory nerve activation. Its additional anticholinergic activity reduces secretions, while central nervous system depression produces calming and sedative effects. This combined pharmacology alleviates allergy symptoms, itching, anxiety and nausea.

The appropriate dose of Hydroxyzine Orifarm is determined by the prescribing clinician based on the patient’s age, weight, medical condition and response to therapy. Dosage may vary for different indications such as allergy, pruritus or anxiety, and adjustments are made according to clinical judgment and tolerability. Patients should follow the exact instructions on the prescription label.

Safety data for hydroxyzine during pregnancy are limited, and the drug is classified as pregnancy category unknown. It should be used only if the potential benefit outweighs any possible risk to the fetus. While small amounts are excreted in breast milk, breastfeeding mothers should consult their healthcare provider before using the medication to assess any risk to the infant.

To place an order, visit the product page on gnhindia.com, enter the required quantity and submit the enquiry form. GNH India works with hospitals, pharmacies and procurement teams worldwide, and will request verification of trade or institutional credentials. After confirmation, the sales team provides pricing, availability, shipping details (including any cold‑chain requirements) and assists with import documentation.

Compared with second‑generation antihistamines, hydroxyzine provides stronger sedative and anticholinergic effects, making it useful when calming or sleep‑inducing properties are desired. However, it is more likely to cause drowsiness and dry mouth than newer agents such as cetirizine or loratadine, which have reduced central nervous system penetration. Choice of therapy depends on the clinical need for sedation versus a preference for minimal daytime drowsiness.

Hydroxyzine Orifarm should be stored at temperatures below 25 °C, in its original packaging to protect it from moisture and light. Keep the product out of reach of children and do not use it after the expiration date. No special refrigeration is required for this oral tablet, but it should be handled in a dry environment to maintain stability.

The medication is taken orally, usually with a glass of water. It may be taken with or without food, depending on the prescriber’s advice. Tablets should be swallowed whole and not crushed or chewed unless specifically instructed. Patients should follow the dosing schedule provided by their healthcare professional and avoid missing doses or taking extra tablets without guidance.

The most serious adverse reactions include cardiac arrhythmias, severe hypotension, hepatic dysfunction, and rare cases of anaphylaxis or neuroleptic malignant syndrome. Patients experiencing palpitations, fainting, yellowing of the skin or eyes, rash, swelling, or high fever should seek immediate medical attention. Monitoring is especially important in individuals with pre‑existing heart disease or liver impairment.

Hydroxyzine Orifarm is contraindicated in patients with known hypersensitivity to hydroxyzine or any component of the formulation. It should also be avoided in individuals taking monoamine oxidase inhibitors within 14 days, and in patients with severe hepatic impairment where metabolism is compromised. Caution is advised for the elderly, those with glaucoma, urinary retention, or severe constipation, and it should not be used in children unless specifically prescribed by a pediatric specialist.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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