Product image of Mirtazapina Qualigen (Mirtazapine) supplied by GNH India

Mirtazapina Qualigen

Active Ingredient:
Mirtazapine
Origin:
EU

Mirtazapina Qualigen (Mirtazapine)

Mirtazapine, the active ingredient in Mirtazapina Qualigen, 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 Mirtazapina Qualigen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide with a focus on quality assurance, regulatory compliance and reliable logistics where required, ensuring consistent product availability across multiple regions to meet timely delivery.

Manufacturer / TM Owner

Neuraxpharm Spain, S.L.U.

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Indications & Clinical Uses

Mirtazapine, a NaSSA antidepressant, is used primarily in the management of depressive disorders.

  • Major depressive disorder: reduces depressive symptoms and improves mood in adult patients.
  • Depressive episodes in bipolar I disorder (adjunct therapy): helps alleviate the depressive phase when combined with a mood stabilizer.
  • Depression associated with chronic medical conditions: supports mood improvement in patients with comorbid illnesses such as cancer or chronic pain.

How It Works

  • Mirtazapine acts as an antagonist at central presynaptic α2‑adrenergic receptors, which disinhibits norepinephrine release. It also blocks postsynaptic 5‑HT2 and 5‑HT3 serotonin receptors and H1 histamine receptors. The combined effect increases synaptic norepinephrine and serotonin while producing antihistaminic activity, contributing to its antidepressant and sedative properties. Additionally, by inhibiting 5‑HT2 and 5‑HT3 receptors, it reduces common serotonergic side effects such as nausea and anxiety, while H1 antagonism accounts for its characteristic sedation and appetite stimulation.

Side Effects

Mirtazapine may cause a range of adverse reactions, which are classified by frequency and severity.

Common Side Effects

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

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Stevens‑Johnson syndrome or toxic epidermal necrolysis
  • Suicidal thoughts or worsening depression
  • Severe hypersensitivity reactions (e.g., anaphylaxis)

Precautions & Warnings

When prescribing mirtazapine, clinicians should observe several safety considerations.

  • Assess hepatic function: adjust dose in patients with severe liver impairment.
  • Monitor body weight: due to potential appetite increase and weight gain.
  • Evaluate for suicidal ideation: especially during the initial treatment period.
  • Use caution in elderly patients: increased risk of sedation, falls, and confusion.
  • Avoid abrupt discontinuation: taper gradually under medical supervision to reduce withdrawal symptoms.
  • Store at ambient temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Mirtazapine can interact with other medicines, affecting its efficacy or safety.

Major Interactions (Avoid)

  • Monoamine oxidase inhibitors (MAOIs): concurrent use may cause hypertensive crisis or serotonin syndrome.
  • Linezolid or other reversible MAO inhibitors: risk of severe serotonin toxicity.
  • Other serotonergic agents (e.g., SSRIs, SNRIs, tramadol): may increase risk of serotonin syndrome.

Moderate Interactions (Monitor Closely)

  • Central nervous system depressants (e.g., benzodiazepines, alcohol): additive sedation and respiratory depression.
  • CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may raise mirtazapine plasma levels.
  • Anticoagulants (e.g., warfarin): possible alteration of INR, requiring monitoring.

Frequently Asked Questions

Mirtazapina Qualigen contains mirtazapine, which is indicated for the treatment of major depressive disorder in adult patients. It helps alleviate depressive symptoms such as low mood, loss of interest, and impaired concentration, and may also be used as adjunct therapy for depressive episodes in bipolar I disorder when combined with a mood stabiliser.

Mirtazapine works by blocking presynaptic α2‑adrenergic receptors, leading to increased release of norepinephrine. It also antagonises postsynaptic 5‑HT2 and 5‑HT3 serotonin receptors and H1 histamine receptors. This combined activity raises synaptic serotonin and norepinephrine levels while providing antihistaminic effects, which together produce antidepressant and sedative actions.

The appropriate dose of mirtazapine is determined by the prescribing clinician based on the individual’s clinical condition, response, and tolerability. Dosage may be started at a low level and titrated upward as needed, but exact regimens should only be set by a qualified healthcare professional.

The safety of mirtazapine in pregnancy and lactation has not been definitively established, and the product is classified with an unknown pregnancy category. Clinicians should weigh potential benefits against possible risks and consider alternative therapies when treating pregnant or nursing patients.

To place an order, submit an enquiry on the product page at gnhindia.com specifying the required quantity of Mirtazapina Qualigen. 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, whereas SSRIs primarily inhibit serotonin reuptake. Mirtazapine’s antagonism of certain serotonin receptors and histamine receptors often results in sedation and weight gain, which can be advantageous for patients with insomnia or low appetite. SSRIs tend to have a different side‑effect profile, including sexual dysfunction and gastrointestinal upset.

Mirtazapina Qualigen should be stored at ambient temperature, below 25 °C, in its original packaging. Protect the tablets from moisture, direct sunlight and excessive heat to maintain stability and potency throughout its shelf life.

Mirtazapina Qualigen 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 the potential for agranulocytosis or severe neutropenia, rare skin reactions such as Stevens‑Johnson syndrome, and the emergence or worsening of suicidal thoughts, particularly during the early weeks of therapy. Prompt medical attention is required if any of these events occur.

Mirtazapine should be avoided in patients who have a known hypersensitivity to the drug or any of its excipients. It is also contraindicated in individuals currently receiving monoamine oxidase inhibitors (MAOIs) or who have taken an MAOI within the past 14 days due to the risk of severe serotonin syndrome.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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