Product image of Mirtazapin Actavis (Mirtazapine) supplied by GNH India

Mirtazapin Actavis

Active Ingredient:
Mirtazapine
Origin:
EU

Mirtazapin Actavis (Mirtazapine)

Mirtazapine, the active ingredient in Mirtazapin Actavis, is a noradrenergic and specific serotonergic antidepressant (NaSSA) presented as an oral tablet for oral use. It is prescribed for the treatment of major depressive disorder in adult patients.

GNH India supplies Mirtazapin Actavis as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, providing reliable sourcing, regulatory support and consistent quality for global healthcare providers. The company adheres to stringent manufacturing standards and offers flexible logistics to meet diverse market requirements.

Manufacturer / TM Owner

Teva B.V

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Indications & Clinical Uses

Mirtazapine is indicated for depressive disorders, primarily acting on the central nervous system to alleviate depressive symptoms.

  • Major depressive disorder: reduces depressive symptoms and improves overall functioning
  • Depressive symptoms with anxiety: may alleviate both mood and anxiety components
  • Treatment‑resistant depression (adjunctive): can be considered when other agents have not achieved adequate response

How It Works

  • Mirtazapine blocks central presynaptic α2‑adrenergic receptors, increasing norepinephrine release, and antagonizes 5‑HT2 and 5‑HT3 receptors while sparing 5‑HT1A. This combined action enhances noradrenergic and serotonergic neurotransmission, leading to improved mood, sleep, and appetite regulation.

Side Effects

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

Common Side Effects

  • Sedation or drowsiness
  • Increased appetite and weight gain
  • Dry mouth
  • Constipation
  • Dizziness
  • Orthostatic hypotension

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Seizures
  • Hepatic injury
  • Suicidal thoughts or behavior, especially early in treatment
  • Severe hypotension or syncope
  • Allergic reactions such as rash or angioedema

Precautions & Warnings

Before initiating therapy, clinicians should evaluate several safety considerations.

  • Assess hepatic function: obtain baseline liver enzymes
  • Monitor weight: track changes due to increased appetite
  • Screen for suicidal ideation: especially during the first weeks
  • Avoid abrupt discontinuation: taper under medical supervision
  • Caution in elderly patients: higher risk of sedation and falls
  • Store at ambient temperature: keep in original container, protect from moisture

Avoid Interactions

Mirtazapine can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

  • Monoamine oxidase inhibitors (MAOIs): risk of serotonin syndrome
  • Other serotonergic antidepressants (e.g., SSRIs, SNRIs): heightened serotonin toxicity
  • CNS depressants (e.g., benzodiazepines, opioids): additive sedation and respiratory depression

Moderate Interactions (Monitor Closely)

  • Alcohol: may increase drowsiness and impair coordination
  • CYP2D6 or CYP3A4 inhibitors (e.g., fluoxetine, ketoconazole): may raise mirtazapine plasma levels
  • Antihistamines: potential for enhanced sedation
  • Warfarin: monitor INR for possible anticoagulant effect alteration

Frequently Asked Questions

Mirtazapin Actavis contains the active ingredient mirtazapine, which is prescribed to treat major depressive disorder in adult patients. It helps improve mood, sleep quality, and appetite by enhancing noradrenergic and serotonergic activity in the brain.

Mirtazapine works by blocking presynaptic α2‑adrenergic receptors, leading to increased release of norepinephrine, and by antagonizing 5‑HT2 and 5‑HT3 receptors while sparing 5‑HT1A. This dual action boosts both norepinephrine and serotonin signaling, contributing to its antidepressant effect.

The appropriate dose of Mirtazapin Actavis is determined by the prescribing clinician based on the individual’s medical condition, response to therapy, and tolerability. Dosage adjustments are made according to professional guidelines and patient-specific factors.

Safety data for mirtazapine in pregnancy and lactation are limited. The prescriber should weigh potential benefits against possible risks and consider alternative treatments if safety cannot be assured. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss options with their healthcare provider.

To request Mirtazapin Actavis, 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.

Mirtazapin Actavis (mirtazapine) belongs to the NaSSA class, differing from SSRIs and SNRIs by its combined α2‑adrenergic blockade and 5‑HT2/5‑HT3 antagonism. This profile often results in pronounced sedation and appetite stimulation, which can be advantageous for patients with insomnia or weight loss, but may be less suitable for those concerned about weight gain.

Mirtazapin Actavis should be stored at ambient temperature, preferably 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 use it after the expiration date.

Mirtazapin Actavis is taken orally, usually once daily in the evening because of its sedative effect. The tablet should be swallowed whole with water and not crushed or chewed unless otherwise directed by a healthcare professional.

Serious risks include the potential for suicidal thoughts or behaviors, especially when treatment is initiated or dosage is changed, as well as rare but severe reactions such as agranulocytosis, seizures, and significant hepatic injury. Patients should be monitored closely for any new or worsening symptoms.

Mirtazapin Actavis is contraindicated in patients who have taken a monoamine oxidase inhibitor within the past 14 days, those with known hypersensitivity to mirtazapine, and individuals with severe hepatic impairment. Caution is also advised for patients with a history of bipolar disorder, as it may precipitate mania.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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