Product image of Mialgin (Pethidine Hydrochloride) supplied by GNH India

Mialgin

Active Ingredient:
Pethidine Hydrochloride
Origin:
EU

Mialgin (Pethidine Hydrochloride)

Pethidine hydrochloride, the active ingredient in Mialgin, is an opioid analgesic presented as a sterile solution for intramuscular, intravenous, and subcutaneous use. It is employed to manage moderate to severe pain, including postoperative pain, in adult patients requiring rapid analgesia.

GNH India supplies Mialgin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, ensuring quality and regulatory compliance across all markets. Our distribution network adheres to stringent handling standards to maintain product integrity from manufacture to end‑user.

Manufacturer / TM Owner

Zentiva S.A.

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Indications & Clinical Uses

Pethidine hydrochloride is an opioid analgesic that acts on the central nervous system to relieve pain.

  • Moderate to severe acute pain: provides rapid analgesia for intense pain episodes.
  • Postoperative pain: reduces pain following surgical procedures.
  • Trauma‑related pain: alleviates pain associated with injuries and emergency care.

How It Works

  • Pethidine hydrochloride exerts its analgesic effect by binding to μ‑opioid receptors in the central nervous system. This agonist activity inhibits the release of nociceptive neurotransmitters such as substance P and glutamate, decreasing neuronal excitability and altering pain perception. The resulting modulation of the descending pain pathways leads to reduced sensation of pain without significant anti‑inflammatory activity.

Side Effects

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

Common Side Effects

  • Nausea
  • Vomiting
  • Dizziness
  • Drowsiness
  • Constipation
  • Sweating

Serious or Rare Side Effects

  • Respiratory depression
  • Severe hypotension
  • Seizures
  • Allergic reactions (rash, itching, anaphylaxis)
  • Adrenal insufficiency
  • Cardiac arrhythmias

Precautions & Warnings

When using pethidine hydrochloride, several precautions should be observed to ensure patient safety.

  • Respiratory assessment: monitor breathing rate and depth, especially in opioid‑naïve patients.
  • Dependence risk: evaluate for signs of tolerance or addiction with prolonged use.
  • Renal/hepatic impairment: adjust dosing or avoid use in severe organ dysfunction.
  • Hypersensitivity: discontinue if any allergic reaction such as rash or swelling occurs.
  • Elderly patients: start with lower doses and monitor closely for sedation.
  • Store at ambient temperature: keep in original container, protect from moisture and light.

Avoid Interactions

Pethidine hydrochloride can interact with other medicines, influencing its efficacy or safety.

Major Interactions (Avoid)

  • Central nervous system depressants (e.g., benzodiazepines, alcohol): may cause profound respiratory depression.
  • Monoamine oxidase inhibitors (MAOIs): increase risk of serotonin syndrome.
  • Other opioids: additive sedative and respiratory effects.
  • Respiratory depressants (e.g., barbiturates): heightened risk of life‑threatening breathing suppression.

Moderate Interactions (Monitor Closely)

  • CYP3A4 inhibitors (e.g., erythromycin, ketoconazole): may raise pethidine plasma levels.
  • Diuretics: can enhance hypotensive effects.
  • Antihistamines: may increase sedation.
  • Certain antidepressants (e.g., SSRIs): monitor for serotonin syndrome signs.

Frequently Asked Questions

Mialgin contains pethidine hydrochloride, an opioid analgesic prescribed to manage moderate to severe acute pain, including postoperative and trauma‑related pain, when rapid and effective relief is required.

Pethidine hydrochloride works by binding to μ‑opioid receptors in the brain and spinal cord, inhibiting the release of pain‑transmitting neurotransmitters and reducing neuronal excitability, which diminishes the perception of pain.

The dosage of Mialgin is determined by the prescribing clinician based on the patient’s condition, pain severity, age, weight, and renal or hepatic function. Only a qualified health professional should set the appropriate dose and administration schedule.

Safety of pethidine hydrochloride in pregnancy or while breastfeeding has not been definitively established. It should be used only if the potential benefit justifies the possible risk to the fetus or infant, and under close medical supervision.

To request Mialgin, 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 morphine, pethidine provides a faster onset of analgesia but has a shorter duration of action and a distinct side‑effect profile, including a higher incidence of nausea. Choice of agent depends on clinical context, patient factors and physician judgment.

Mialgin should be stored at ambient temperature, below 25 °C, in its original packaging, protected from moisture, light and extreme temperatures to preserve potency and sterility.

Mialgin is supplied as a sterile solution for injection and may be given intramuscularly, intravenously or subcutaneously by a qualified health professional, following aseptic technique and appropriate dosing guidelines.

The most critical risks include respiratory depression, severe hypotension, seizures and allergic reactions such as anaphylaxis. Prompt recognition and immediate medical intervention are essential if these events occur.

Patients with known hypersensitivity to pethidine or other opioids, those receiving MAO inhibitors, individuals with severe respiratory insufficiency, uncontrolled asthma, or significant hepatic or renal impairment should avoid Mialgin unless a specialist determines that benefits outweigh risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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