Product image of Imigran Subject (Sumatriptan) supplied by GNH India

Imigran Subject

Active Ingredient:
Sumatriptan
Origin:
EU

Imigran Subject (Sumatriptan)

Sumatriptan, the active ingredient in Imigran, is a selective serotonin (5‑HT1B/1D) receptor agonist presented as a subcutaneous injection for subcutaneous use. It treats acute migraine attacks in adults.

GNH India supplies Imigran as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Glaxo Wellcome Uk Limited

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Indications & Clinical Uses

  • Sumatriptan is a triptan medication used for acute headache disorders that involve the trigeminovascular pathway.
  • Migraine (with or without aura): provides rapid relief of headache pain, photophobia, phonophobia and nausea.
  • Migraine with severe nausea: reduces associated gastrointestinal symptoms while alleviating pain.
  • Cluster headache: can abort acute cluster attacks when administered subcutaneously.

How It Works

  • Sumatriptan binds selectively to 5‑HT1B and 5‑HT1D receptors on cranial blood vessels and trigeminal nerve endings. Activation causes vasoconstriction of intracranial arteries and inhibits release of pro‑inflammatory neuropeptides, thereby interrupting the pain signaling cascade responsible for migraine attacks.

Side Effects

Sumatriptan may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

  • Injection site pain or erythema
  • Tingling or numbness (paraesthesia)
  • Warmth or flushing sensation
  • Dizziness or light‑headedness
  • Nausea or mild gastrointestinal upset
  • Transient chest tightness

Serious or Rare Side Effects

  • Chest pain or myocardial ischemia
  • Severe hypertension or hypertensive crisis
  • Serotonin syndrome, especially with other serotonergic drugs
  • Allergic reactions including anaphylaxis
  • Ischemic stroke or transient ischemic attack
  • Severe arrhythmias or cardiac conduction abnormalities

Precautions & Warnings

  • Before prescribing Sumatriptan, clinicians should evaluate cardiovascular risk and contraindications.
  • Assess cardiovascular history: avoid in patients with known coronary artery disease.
  • Control hypertension: do not use in uncontrolled high blood pressure.
  • Use caution in ischemic heart disease: monitor for chest discomfort.
  • Avoid serotonergic drug combinations: monitor for serotonin syndrome.
  • Check for hypersensitivity: discontinue if allergic reaction occurs.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Avoid Interactions

Sumatriptan can interact with several medication classes, requiring careful assessment.

Major Interactions (Avoid)

  • MAO inhibitors: risk of severe hypertension.
  • SSRIs, SNRIs, or other serotonergic agents: potential serotonin syndrome.
  • Ergot alkaloids: additive vasoconstriction.
  • Other triptans: cumulative vasoconstrictive effect.
  • Linezolid: increased serotonin toxicity.

Moderate Interactions (Monitor Closely)

  • Beta‑blockers or other antihypertensives: may enhance blood pressure lowering.
  • Strong CYP3A4 inhibitors (e.g., ketoconazole): may increase sumatriptan plasma levels.

Frequently Asked Questions

Imigran contains sumatriptan, a prescription triptan indicated for the acute treatment of migraine attacks in adults. It is administered as a subcutaneous injection to rapidly relieve headache pain, photophobia, phonophobia, and associated nausea.

Sumatriptan acts as an agonist at serotonin 5‑HT1B and 5‑HT1D receptors located on intracranial blood vessels and trigeminal nerve fibers. This dual action causes vasoconstriction of dilated cranial arteries and blocks the release of inflammatory neuropeptides, interrupting the migraine pain pathway.

The prescribed dose of Imigran is determined by the treating physician based on the patient’s clinical condition, severity of the migraine attack, and prior response to therapy. The prescriber will decide the exact amount and frequency of administration.

The safety of sumatriptan in pregnancy and lactation has not been definitively established. It should only be used if the potential benefit justifies the potential risk to the fetus or infant, and this decision must be made by a qualified healthcare professional.

To place an order, submit an enquiry on the Imigran 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 (including cold‑chain handling if needed) and required import documentation.

Imigran (sumatriptan) belongs to the triptan class, which provides targeted serotonin receptor activation for rapid migraine relief. Compared with non‑specific analgesics, triptans address the underlying vascular and neurogenic mechanisms of migraine, often achieving faster and more complete symptom resolution. Alternative triptans or newer gepants may differ in onset, duration, and side‑effect profiles.

Imigran should be stored at 2‑8 °C (refrigerated). Keep the product in its original packaging, protect it from light, and avoid freezing or shaking the vial to maintain drug stability and efficacy.

Imigran is supplied as a sterile solution for subcutaneous injection. The injection is typically given into the outer thigh or abdomen using a pre‑filled syringe, following the dosing instructions provided by the prescribing clinician.

Serious risks include chest pain or myocardial ischemia, severe hypertension, serotonin syndrome when combined with other serotonergic agents, and rare allergic reactions such as anaphylaxis. Patients should seek immediate medical attention if they experience any of these symptoms.

Imigran is contraindicated in individuals with a history of coronary artery disease, uncontrolled hypertension, severe peripheral vascular disease, known hypersensitivity to sumatriptan or any formulation component, and in patients currently taking ergot alkaloids or monoamine oxidase inhibitors.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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