Product image of Levomepromazine Orion (Levomepromazine) supplied by GNH India

Levomepromazine Orion

Active Ingredient:
Levomepromazine
Origin:
EU

Levomepromazine Orion (Levomepromazine)

Levomepromazine, the active ingredient in Levomepromazine Orion, is a phenothiazine presented as an oral tablet for oral use. It is used to manage schizophrenia, severe anxiety, nausea and vomiting, and palliative‑care symptoms in adult patients.

GNH India supplies Levomepromazine Orion as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Orion Corporation

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Indications & Clinical Uses

Levomepromazine, a phenothiazine antipsychotic, is employed across several therapeutic areas.

  • Schizophrenia: reduces psychotic symptoms and improves thought organization.
  • Severe anxiety: alleviates anxiety and agitation when other treatments are insufficient.
  • Nausea and vomiting: controls refractory nausea, especially in chemotherapy or palliative settings.
  • Palliative care: provides analgesic and sedative effects for pain, agitation and distress in end‑of‑life care.

How It Works

  • Levomepromazine acts primarily as an antagonist at dopamine D2 receptors, diminishing dopaminergic neurotransmission that underlies psychosis. It also blocks histamine H1, muscarinic, and alpha‑adrenergic receptors, contributing to its sedative, anti‑emetic, and antihistaminic properties, while the combined receptor profile supports analgesic and anti‑agitation effects in palliative care.

Side Effects

Levomepromazine may cause a range of adverse reactions, some of which are more frequent than others.

Common Side Effects

  • Drowsiness: excessive sleepiness or fatigue.
  • Dry mouth: reduced salivation leading to discomfort.
  • Constipation: slowed gastrointestinal motility.
  • Orthostatic hypotension: dizziness upon standing.
  • Weight gain: increased appetite and body weight.
  • Blurred vision: transient visual disturbances.

Serious or Rare Side Effects

  • Neuroleptic malignant syndrome: life‑threatening reaction with fever and muscle rigidity.
  • Torsades de pointes: potentially fatal ventricular arrhythmia.
  • Severe hypotension: marked drop in blood pressure.
  • Agranulocytosis: dangerous reduction in white blood cells.
  • Seizures: occurrence of convulsive episodes.
  • Cardiac arrhythmias: irregular heart rhythms requiring urgent care.

Precautions & Warnings

When prescribing Levomepromazine, clinicians should observe several safety measures.

  • Blood pressure monitoring: watch for orthostatic drops.
  • Extrapyramidal assessment: evaluate for movement disorders.
  • Hepatic function: check liver enzymes regularly.
  • Elderly caution: start low and increase slowly.
  • Discontinuation: avoid abrupt stop to prevent withdrawal.
  • Store at ambient temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Levomepromazine can interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid)

  • CNS depressants: may enhance sedation and respiratory depression.
  • Anticholinergic agents: increase risk of severe anticholinergic toxicity.
  • QT‑prolonging drugs: heighten chance of cardiac arrhythmias.

Moderate Interactions (Monitor Closely)

  • Antidepressants (especially SSRIs): may augment serotonergic effects.
  • Alcohol: can intensify drowsiness and hypotension.

Frequently Asked Questions

Levomepromazine Orion is prescribed for the management of schizophrenia, severe anxiety, refractory nausea and vomiting, and as a sedative‑analgesic in palliative‑care settings to relieve pain, agitation and distress in adult patients.

Levomepromazine blocks dopamine D2 receptors, reducing psychotic activity, and also antagonizes histamine H1, muscarinic and alpha‑adrenergic receptors. This combined action provides antipsychotic, anti‑emetic, sedative and analgesic effects that are useful across its therapeutic indications.

The appropriate dose of levomepromazine is determined by the prescribing clinician based on the specific indication, patient age, weight, renal and hepatic function, and response to therapy. Dosage regimens are individualized and should follow local prescribing guidelines.

Levomepromazine is classified as a prescription‑only medication and should be used during pregnancy or lactation only if the potential benefit justifies the potential risk to the fetus or infant. Clinicians should assess each case carefully and discuss alternatives when possible.

To request Levomepromazine Orion, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Compared with typical antipsychotics, levomepromazine has a broader receptor profile, offering stronger antihistamine and anti‑emetic actions. This makes it useful for nausea control and palliative sedation, whereas other agents may focus primarily on psychosis without these additional benefits.

Levomepromazine Orion should be stored at ambient temperature, below 25 °C, in its original packaging. Keep the product away from moisture, direct sunlight and sources of heat to maintain stability and potency.

Levomepromazine Orion is taken orally, usually as a tablet swallowed with water. The exact administration schedule, including timing relative to meals, is determined by the prescriber based on the therapeutic goal and patient tolerance.

The most serious risks include neuroleptic malignant syndrome, severe hypotension, cardiac arrhythmias such as torsades de pointes, agranulocytosis, and seizures. Patients should be monitored closely for early signs of these conditions, and treatment should be discontinued if they occur.

Levomepromazine is contraindicated in patients with known hypersensitivity to phenothiazines, those with severe cardiovascular disease prone to arrhythmias, and individuals with a history of neuroleptic malignant syndrome. Caution is also advised for patients with significant hepatic or renal impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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