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 NaSSA (noradrenergic and specific serotonergic antidepressant) presented as an oral tablet for oral use. It is indicated 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.

Manufacturer / TM Owner

Teva B.V

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Indications & Clinical Uses

Mirtazapine acts within the central nervous system to alleviate depressive conditions and related symptoms.

  • Major depressive disorder: reduces depressive mood, improves sleep and appetite.
  • Depression with prominent anxiety: alleviates anxiety symptoms alongside mood improvement.
  • Depression with insomnia: promotes sleep while treating core depressive features.

How It Works

  • Mirtazapine blocks central presynaptic α2‑adrenergic receptors, enhancing norepinephrine release, and antagonizes 5‑HT2 and 5‑HT3 serotonin receptors while also inhibiting H1 histamine receptors. This combined activity increases serotonergic and noradrenergic neurotransmission, producing antidepressant and anxiolytic effects.

Side Effects

Mirtazapine may cause a range of adverse reactions that vary in frequency and severity.

Common Side Effects

  • Sedation or drowsiness
  • Increased appetite leading to weight gain
  • Dry mouth
  • Constipation
  • Dizziness
  • Blurred vision

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Stevens‑Johnson syndrome or toxic epidermal necrolysis
  • Hepatic dysfunction
  • Suicidal thoughts or behavior
  • Seizures
  • Severe allergic reactions (anaphylaxis)

Precautions & Warnings

Before initiating therapy, clinicians should consider several safety aspects.

  • Assess hepatic function: adjust use in patients with liver impairment.
  • Monitor weight: anticipate possible weight gain and counsel on nutrition.
  • Avoid abrupt discontinuation: taper to reduce withdrawal symptoms.
  • Caution in elderly: increased sensitivity to sedation and orthostatic hypotension.
  • Review concomitant CNS depressants: risk of additive sedation.
  • Store at ambient temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Mirtazapine can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

  • MAO inhibitors: risk of hypertensive crisis.
  • CNS depressants (alcohol, benzodiazepines): additive sedation.
  • CYP2D6 inhibitors (e.g., paroxetine): increased mirtazapine plasma levels.
  • Other serotonergic agents (SSRIs, SNRIs, tramadol): potential serotonin syndrome.

Moderate Interactions (Monitor Closely)

  • Antihistamines: enhanced sedative effect.
  • Warfarin: possible increase in INR, monitor coagulation.
  • Lithium: monitor serum lithium levels for potential toxicity.

Frequently Asked Questions

Mirtazapin Actavis contains mirtazapine, which is prescribed primarily for the treatment of major depressive disorder in adults. It helps improve mood, sleep, and appetite by modulating neurotransmitter activity in the brain.

Mirtazapine blocks presynaptic α2‑adrenergic receptors, increasing norepinephrine release, and antagonizes specific serotonin receptors (5‑HT2, 5‑HT3) while also blocking H1 histamine receptors. This combined action enhances serotonergic and noradrenergic signaling, producing antidepressant and anxiolytic effects.

The appropriate dose of Mirtazapin Actavis is determined by the prescribing clinician based on the patient’s clinical condition, response, and tolerability. Dosage adjustments are made individually, and patients should follow the prescriber’s instructions.

Safety data for mirtazapine in pregnancy and lactation are limited. The prescriber must weigh potential benefits against risks and consider alternative therapies. Women who are pregnant, planning pregnancy, or breastfeeding should discuss use 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.

Mirtazapine belongs to the NaSSA class, differing from SSRIs and SNRIs by its dual antagonism of specific serotonin receptors and α2‑adrenergic receptors. This profile often results in stronger sedative and appetite‑stimulating effects, which can be advantageous for patients with insomnia or weight loss, but may be less suitable for those concerned about sedation.

Mirtazapin Actavis should be stored at ambient temperature, below 25 °C, in its original packaging to protect from moisture and light. Keep the product out of reach of children and do not use after the expiry date.

Mirtazapin Actavis is taken orally, usually once daily in the evening to take advantage 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 rare blood dyscrasias such as agranulocytosis, severe hepatic injury, and rare cases of Stevens‑Johnson syndrome. Additionally, patients should be monitored for emergent suicidal thoughts, especially during the early treatment phase, and for seizures in predisposed individuals.

Mirtazapin Actavis is contraindicated in patients with known hypersensitivity to mirtazapine or any of its excipients, and in those currently taking monoamine oxidase inhibitors (MAOIs) unless a washout period of at least 14 days has been observed. Caution is also advised for individuals with severe hepatic impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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