Product image of Methaliq (Methadone Hydrochloride) supplied by GNH India

Methaliq

Active Ingredient:
Methadone Hydrochloride
Origin:
EU

Methaliq (Methadone Hydrochloride)

Methadone Hydrochloride, the active ingredient in Methaliq, is an opioid analgesic presented as an oral formulation for oral use. It is employed in the management of opioid dependence and severe chronic pain in adult patients.

GNH India supplies Methaliq as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, providing reliable sourcing, regulatory support and consistent product quality across multiple markets. The company adheres to stringent Good Distribution Practice standards and maintains active communication with regulatory authorities to ensure compliance and timely delivery.

Manufacturer / TM Owner

Hexal Ag

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Indications & Clinical Uses

Methadone Hydrochloride is used in opioid‑related disorders and severe pain management.

  • Opioid dependence: stabilizes patients and reduces withdrawal symptoms during detoxification.
  • Maintenance therapy for opioid dependence: supports long‑term opioid substitution to prevent relapse.
  • Severe chronic pain: provides potent analgesia when other opioids are inadequate.

How It Works

  • Methadone Hydrochloride acts as a full agonist at the µ‑opioid receptor, producing analgesia and suppressing opioid craving. It also blocks N‑methyl‑D‑aspartate (NMDA) receptors, which may help mitigate opioid tolerance and hyperalgesia. The drug is metabolized primarily by hepatic CYP3A4 and CYP2B6 enzymes, influencing its plasma concentrations and duration of action.

Side Effects

Methadone Hydrochloride may cause a range of adverse reactions, from mild to serious.

Common Side Effects

  • Constipation: reduced gastrointestinal motility.
  • Drowsiness: increased sedation, especially after dose initiation.
  • Nausea: gastrointestinal upset often early in therapy.
  • Dry mouth: reduced salivary flow.

Serious or Rare Side Effects

  • Respiratory depression: marked reduction in breathing rate.
  • QT interval prolongation: risk of cardiac arrhythmia.
  • Severe hypotension: sudden drop in blood pressure.

Precautions & Warnings

When prescribing Methadone Hydrochloride, clinicians should observe several safety measures.

  • Assess opioid tolerance: confirm patient’s prior exposure to opioids before initiation.
  • Monitor respiratory function: watch for signs of depression, especially after dose changes.
  • Avoid concurrent CNS depressants: limit use with benzodiazepines or alcohol.
  • Use caution in hepatic impairment: adjust dosing as liver function is compromised.
  • Educate on dependence risk: inform patients about potential for addiction and withdrawal.
  • Store at ambient temperature: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

Methadone Hydrochloride interacts with several drug classes that may alter its safety or efficacy.

Major Interactions (Avoid)

  • Benzodiazepines: combined CNS depression can cause severe respiratory depression.
  • MAO inhibitors: risk of hypertensive crisis and serotonin syndrome.
  • Strong CYP3A4 inhibitors (e.g., ketoconazole): increase methadone plasma levels.

Moderate Interactions (Monitor Closely)

  • CYP2B6 inducers (e.g., rifampin): may reduce methadone concentrations.
  • QT‑prolonging agents (e.g., certain antiarrhythmics): increase risk of cardiac arrhythmias.

Frequently Asked Questions

Methaliq contains methadone hydrochloride and is used primarily for the treatment of opioid dependence and for managing severe chronic pain when other analgesics are insufficient.

Methadone hydrochloride acts as a full agonist at the µ‑opioid receptor, providing analgesia and reducing opioid cravings, while also antagonizing NMDA receptors, which can help limit tolerance development.

The dose of Methaliq is individualized; the prescribing clinician determines the appropriate amount based on the patient’s condition, prior opioid exposure, and response to therapy.

Safety data for methadone hydrochloride in pregnancy and lactation are limited; the product is classified as pregnancy category unknown, and use should be considered only if the potential benefit justifies the potential risk.

To order Methaliq, 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.

Methaliq (methadone) is a long‑acting opioid agonist, offering once‑daily dosing and a well‑established efficacy profile, whereas alternatives such as buprenorphine are partial agonists with a ceiling effect on respiratory depression. Choice depends on patient-specific factors, treatment goals and regulatory considerations.

Methaliq should be stored at ambient temperature, 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 store in extreme heat or humidity.

Methaliq is administered orally, typically as a tablet or liquid formulation, and should be taken exactly as prescribed, with or without food, according to the dosing schedule set by the healthcare provider.

The most serious risks include respiratory depression, especially when combined with other central nervous system depressants, QT interval prolongation leading to cardiac arrhythmias, and the potential for physical dependence and overdose if misused.

Methaliq should be avoided in patients with known hypersensitivity to methadone, severe respiratory insufficiency, uncontrolled cardiac arrhythmias, or those taking contraindicated medications such as MAO inhibitors. Clinicians must evaluate each patient’s medical history before initiating therapy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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