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

Mirtazapin Orion

Active Ingredient:
Mirtazapine
Origin:
EU

Mirtazapin Orion (Mirtazapine)

Mirtazapine, the active ingredient in Mirtazapin Orion, is a NaSSA (noradrenergic and specific serotonergic antidepressant) presented as an oral tablet for oral use. It is prescribed for the treatment of major depressive disorder in adult patients and may be considered when other antidepressants are insufficient.

GNH India supplies Mirtazapin Orion as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. Our distribution network ensures consistent quality and regulatory compliance across EU and global markets.

Manufacturer / TM Owner

Orion Corporation

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Indications & Clinical Uses

Mirtazapine belongs to the NaSSA class and is indicated for depressive disorders. It modulates neurotransmitter activity to improve mood and related symptoms.

  • Major depressive disorder: alleviates depressive symptoms and improves overall mood.
  • Anxiety associated with depression: reduces anxiety features when used as adjunct therapy.
  • Sleep disturbances in depression: enhances sleep quality and reduces insomnia.

How It Works

  • Mirtazapine acts as an antagonist at central presynaptic α2‑adrenergic receptors, increasing norepinephrine release, and blocks postsynaptic 5‑HT2 and 5‑HT3 receptors, thereby enhancing serotonergic transmission while reducing serotonergic side effects. This combined action contributes to its 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 and weight gain
  • Dry mouth
  • Constipation
  • Dizziness

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Serotonin syndrome, especially with other serotonergic agents
  • Suicidal thoughts or behavior, particularly early in treatment
  • Severe allergic reactions (e.g., rash, angioedema)
  • Hepatic dysfunction or jaundice

Precautions & Warnings

Before initiating therapy, clinicians should consider several safety aspects.

  • Assess hepatic function: evaluate liver enzymes prior to treatment.
  • Monitor weight: be aware of potential weight gain during therapy.
  • Screen for suicidal ideation: especially during the first weeks of use.
  • Avoid abrupt discontinuation: taper the dose under medical supervision.
  • Use caution in elderly: increased risk of sedation and falls.
  • Store at ambient temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Mirtazapine can interact with several drug classes, requiring careful management.

Major Interactions (Avoid)

  • MAO inhibitors: risk of hypertensive crisis and serotonin syndrome.
  • Strong CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may raise mirtazapine plasma levels.
  • Other serotonergic agents (e.g., tramadol, triptans): increase the chance of serotonin syndrome.

Moderate Interactions (Monitor Closely)

  • CNS depressants (alcohol, benzodiazepines): additive sedation.
  • Anticholinergic drugs: may exacerbate dry mouth.
  • Lithium: monitor for heightened side‑effect profile.

Frequently Asked Questions

Mirtazapin Orion contains mirtazapine, a NaSSA‑type antidepressant that is primarily prescribed for major depressive disorder in adults. It may also help alleviate associated anxiety and improve sleep quality in patients whose depression includes insomnia.

Mirtazapine blocks presynaptic α2‑adrenergic receptors, which increases the release of norepinephrine, and antagonizes postsynaptic 5‑HT2 and 5‑HT3 receptors. This dual action enhances serotonergic and noradrenergic neurotransmission while reducing certain serotonin‑related side effects, contributing to its antidepressant effect.

The specific dose is determined by the prescribing clinician based on the individual’s clinical condition, age, and response to therapy. Typical starting doses for adults often begin at a low level and may be adjusted upward, but exact dosing must be set by a qualified healthcare professional.

Safety data for mirtazapine in pregnancy and lactation are limited. The medication should only be used if the potential benefit to the mother outweighs any possible risk to the fetus or infant. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss risks with their healthcare provider.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, and will request verification of trade or institutional credentials. After confirmation, the team provides pricing, availability, shipping details and any necessary import documentation.

Mirtazapin Orion (mirtazapine) differs from selective serotonin reuptake inhibitors (SSRIs) by its dual noradrenergic and specific serotonergic activity, which often results in stronger sedative and appetite‑stimulating effects. This profile can be advantageous for patients with insomnia or weight loss, whereas SSRIs may have a lower risk of weight gain but can cause different side‑effects such as sexual dysfunction.

Mirtazapin Orion should be stored at ambient temperature, below 25 °C, in its original packaging to protect it from moisture and light. Keep the product out of reach of children and avoid storing it in humid or excessively hot environments.

The medication is supplied as oral tablets and is taken by mouth, usually once daily in the evening. It may be taken with or without food, but patients should follow the prescribing clinician’s instructions regarding timing and any dietary considerations.

Serious risks include the potential for suicidal thoughts or behavior, especially during the initial weeks of treatment, agranulocytosis or severe neutropenia, and serotonin syndrome when combined with other serotonergic drugs. Prompt medical attention is required if symptoms such as fever, sore throat, unusual bleeding, or signs of serotonin excess appear.

Mirtazapin Orion is contraindicated in patients with known hypersensitivity to mirtazapine or any of its excipients, and in those currently taking monoamine oxidase inhibitors (MAOIs) or who have used an MAOI within the past 14 days. Caution is also advised for individuals with severe hepatic impairment or uncontrolled epilepsy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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