Product image of Largactil Im (Chlorpromazine Hydrochloride) supplied by GNH India

Largactil Im

Active Ingredient:
Chlorpromazine Hydrochloride
Origin:
EU

Largactil Im (Chlorpromazine Hydrochloride)

Chlorpromazine, the active ingredient in Largactil Im, is a phenothiazine presented as an intramuscular preparation for injection use. It is employed to manage schizophrenia, acute psychotic episodes, severe agitation, and nausea or vomiting, providing antipsychotic and antiemetic effects in adult patients and is available in multiple dosage strengths for clinical flexibility.

GNH India supplies Largactil Im as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable logistics for global distribution.

Manufacturer / TM Owner

Faes Farma Portugal, S.A.

1
Pack/s
This product is added to your enquiry list

Request a Quote

Please fill out the form below and our team will get back to you shortly with pricing and further information.

A minimum order value applies. Our team will confirm the exact amount or quantity after reviewing your requirements.

Indications & Clinical Uses

  • Chlorpromazine is used in the treatment of several psychiatric and gastrointestinal conditions by modulating dopaminergic pathways.
  • Schizophrenia: reduces psychotic symptoms and stabilizes mood.
  • Acute psychotic episodes: rapidly controls agitation and hallucinations.
  • Severe agitation: calms extreme restlessness and aggressive behavior.
  • Nausea and vomiting: acts as an antiemetic to relieve chemotherapy‑induced or postoperative nausea.

How It Works

  • Chlorpromazine works primarily as an antagonist of dopamine D2 receptors in the central nervous system, decreasing dopaminergic neurotransmission that underlies psychotic symptoms. It also blocks histamine H1, muscarinic acetylcholine, and alpha‑adrenergic receptors, contributing to its sedative, anticholinergic, and hypotensive effects, and modulates other neurotransmitter pathways that influence mood and emesis. These combined actions reduce psychotic manifestations and provide antiemetic benefit.

Side Effects

Chlorpromazine may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Sedation or drowsiness
  • Orthostatic hypotension
  • Dry mouth and constipation
  • Extrapyramidal symptoms such as tremor or rigidity
  • Blurred vision

Serious or Rare Side Effects

  • Neuroleptic malignant syndrome
  • Severe cardiac arrhythmias or QT prolongation
  • Agranulocytosis
  • Tardive dyskinesia
  • Seizures

Precautions & Warnings

  • When prescribing chlorpromazine, clinicians should observe several safety measures to minimize risks.
  • Monitor blood pressure: watch for orthostatic hypotension, especially after first doses.
  • Assess for extrapyramidal symptoms: regular neurological examinations.
  • Evaluate cardiac status: ECG monitoring for QT prolongation.
  • Use caution in elderly: increased susceptibility to sedation and falls.
  • Avoid abrupt discontinuation: taper dose to prevent withdrawal.
  • Store at ambient temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Chlorpromazine interacts with several drug classes, requiring careful management to avoid harmful effects.

Major Interactions (Avoid)

  • CNS depressants (e.g., barbiturates, opioids) – additive sedation.
  • Antiarrhythmics (e.g., quinidine) – increased risk of arrhythmia.
  • QT‑prolonging agents (e.g., haloperidol) – heightened cardiac risk.
  • MAO inhibitors – severe hypotension.
  • Anticholinergic agents – excessive anticholinergic burden.

Moderate Interactions (Monitor Closely)

  • Antihypertensives – enhanced hypotensive effect.
  • Antidiabetic agents – may mask hypoglycemia.
  • Alcohol – increased sedation.
  • CYP1A2 inhibitors (e.g., fluvoxamine) – raise chlorpromazine levels.
  • CYP2D6 substrates (e.g., metoprolol) – altered metabolism.

Frequently Asked Questions

Largactil Im contains chlorpromazine, a phenothiazine typical antipsychotic administered by intramuscular injection. It is indicated for the management of schizophrenia, acute psychotic episodes, severe agitation, and as an antiemetic for nausea and vomiting, particularly when rapid symptom control is required.

Chlorpromazine exerts its therapeutic effect primarily by blocking dopamine D2 receptors in the brain, which reduces dopaminergic activity responsible for psychotic symptoms. In addition, it antagonizes histamine H1, muscarinic acetylcholine, and alpha‑adrenergic receptors, producing sedation, anticholinergic effects, and vasodilation that contribute to its overall clinical profile.

The dosage of Largactil Im is determined by the prescribing clinician based on the patient’s condition, severity, age, and response to therapy. The prescriber will select an appropriate strength and frequency, typically administered as a single intramuscular injection or repeated doses as clinically indicated.

Safety data for chlorpromazine in pregnancy and lactation are limited. It is generally classified as a drug to be used only if the potential benefit justifies the potential risk to the fetus or infant. Women who are pregnant, planning pregnancy, or breastfeeding should discuss risks and alternatives with their healthcare provider.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity of Largactil Im. 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 newer atypical antipsychotics, chlorpromazine has a broader receptor profile, affecting dopamine, histamine, muscarinic, and adrenergic systems, which can result in a higher incidence of sedation and anticholinergic side effects. However, it remains an effective, cost‑efficient option for acute symptom control, especially when rapid intramuscular administration is needed.

Largactil Im should be stored at ambient temperature, preferably below 25 °C, in its original packaging. The container should be kept away from moisture, direct sunlight, and extreme temperature fluctuations to maintain product stability and potency until the point of use.

Largactil Im is administered by deep intramuscular injection, typically into the gluteal muscle. The injection should be performed by a qualified healthcare professional using aseptic technique. The volume and concentration of the dose are determined by the prescriber, and the injection site should be rotated if multiple doses are required.

The most serious adverse reactions include neuroleptic malignant syndrome, severe hypotension, cardiac arrhythmias such as QT prolongation, agranulocytosis, tardive dyskinesia, and seizures. Patients should be monitored closely for signs of these conditions, and immediate medical attention is required if they occur.

Largactil Im is contraindicated in patients with known hypersensitivity to chlorpromazine or any phenothiazine, those with severe central nervous system depression, and individuals with a history of malignant hyperthermia. Caution is also advised in patients with uncontrolled cardiovascular disease, glaucoma, or severe hepatic impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

Disclaimer

At GNH India, we aim to provide information that is expert-reviewed, accurate, and reliable. However, all content on this platform is intended for general informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. While efforts are made to maintain accuracy and currency, the information may contain errors, omissions, or may not reflect the latest developments. Always consult a qualified healthcare professional regarding any medical concerns.

All product names, brand names, trademarks and registered trademarks displayed on this website are the property of their respective owners. This website and its operator are not affiliated with, endorsed by, or authorized by any such trade mark owners unless expressly stated. Any reference to product names or trademarks is made solely for descriptive and informational purposes. No commercial relationship, sponsorship, approval, or association with any trademark owner should be inferred. Information provided herein does not constitute promotion, advertising, or an offer for sale of any medicinal product and is intended solely for general informational purposes.

All trademarks and brand names displayed on this website are used strictly in accordance with the provisions of the Trade Marks Act, 1999, specifically Sections 30 and 30(1) governing fair use. Trademark ownership has been accurately attributed under the "Manufacturer/ TM Owner" section in compliance with statutory requirements.

Ordering Process

Simple, Secure, and Seamless

Learn how our streamlined ordering process guarantees fast, compliant, and reliable access to essential medicines worldwide.

Quote request form

01

Submit Quote Request Form

Tell us what medications you need by filling out our simple form and uploading a valid document.

Price estimate review

02

We Review & Send Estimate

Our licensed pharmacists will verify your details and provide you with a detailed cost estimate.

Secure payment

03

Confirm & Make Payment

Discuss any queries, approve the estimate, and complete your payment.

Worldwide delivery

04

Get Delivered

Your medicines, safely packed and delivered to your door or nearest airport — hassle-free.

Quality You Can Trust

Our internationally recognized certifications underscore our commitment to safety, quality, and excellence.