Product image of Norset (Mirtazapine) supplied by GNH India

Norset

Active Ingredient:
Mirtazapine
Origin:
EU

Norset (Mirtazapine)

Mirtazapine, the active ingredient in Norset, is a NaSSA (noradrenergic and specific serotonergic antidepressant) presented as an oral tablet for oral use. It treats major depressive disorder in adult patients.
GNH India supplies Norset as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Organon France

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Indications & Clinical Uses

Mirtazapine is a noradrenergic and specific serotonergic antidepressant that acts on mood‑regulating pathways.

  • Major depressive disorder: reduces depressive symptoms and improves mood in adult patients.
  • Treatment‑resistant depression: used as an adjunct when first‑line agents are insufficient.
  • Depressive episodes with prominent insomnia: improves sleep quality while alleviating depressive symptoms.

How It Works

  • Mirtazapine antagonises central presynaptic α2‑adrenergic receptors, increasing norepinephrine release, and blocks postsynaptic 5‑HT2 and 5‑HT3 receptors, enhancing serotonergic transmission. Additional H1 histamine receptor antagonism contributes to its sedative and appetite‑stimulating effects, resulting in overall antidepressant activity.

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
  • Somnolence

Serious or Rare Side Effects

  • Agranulocytosis or neutropenia
  • Seizures
  • Severe hypotension
  • Hepatic dysfunction
  • Suicidal ideation, especially early in treatment
  • Severe allergic reactions such as Stevens‑Johnson syndrome

Precautions & Warnings

Before initiating therapy, clinicians should consider several safety measures.

  • Assess hepatic function: evaluate liver enzymes prior to starting treatment.
  • Monitor weight: watch for rapid weight gain or appetite changes.
  • Screen for suicidal thoughts: particularly during the first weeks of therapy.
  • Avoid abrupt discontinuation: taper the dose under medical supervision to reduce withdrawal risk.
  • Caution in elderly: increased sensitivity to sedation and orthostatic effects.
  • Store at ambient temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Mirtazapine can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

  • MAO inhibitors: risk of hypertensive crisis when combined.
  • CNS depressants (e.g., benzodiazepines, barbiturates): additive sedation and respiratory depression.
  • Potent CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may raise mirtazapine plasma levels.

Moderate Interactions (Monitor Closely)

  • Other serotonergic agents (e.g., SSRIs, SNRIs, tramadol): potential for serotonin syndrome.
  • Anticholinergic drugs: may exacerbate dry mouth and constipation.
  • Alcohol: enhances central nervous system depression and sedation.

Frequently Asked Questions

Norset contains mirtazapine, which is prescribed to treat major depressive disorder in adult patients. It helps alleviate depressive symptoms such as low mood, loss of interest, and sleep disturbances, and may also be used as an adjunct in treatment‑resistant cases.

Mirtazapine works by blocking presynaptic α2‑adrenergic receptors, which increases norepinephrine release, and by antagonising postsynaptic 5‑HT2 and 5‑HT3 receptors, enhancing serotonergic neurotransmission. Its additional H1 histamine receptor antagonism contributes to sedation and appetite stimulation.

The appropriate dose of Norset is determined individually by a qualified prescriber based on the patient’s clinical condition, response to therapy, and tolerability. Dosage adjustments are made according to professional medical guidance.

The safety of Norset (mirtazapine) in pregnancy and lactation has not been definitively established. Healthcare providers should weigh potential benefits against possible risks and discuss alternative options with the patient before prescribing.

To order Norset, 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.

Compared with selective serotonin reuptake inhibitors (SSRIs), Norset (mirtazapine) has a distinct mechanism that often results in stronger sedative and appetite‑stimulating effects, which can be advantageous for patients with insomnia or weight loss. However, SSRIs may have a lower risk of weight gain and sedation.

Norset tablets should be stored at ambient temperature, below 25 °C, in the original container to protect them from moisture and light. Keep the product out of reach of children and do not use if the packaging is damaged.

Norset is taken orally as a tablet. It should be swallowed whole with a glass of water, preferably in the evening due to its sedative properties, unless the prescriber advises a different schedule.

Serious risks include agranulocytosis or neutropenia, seizures, severe hypotension, hepatic dysfunction, and the emergence or worsening of suicidal thoughts, especially during the initial weeks of treatment. Patients should seek immediate medical attention if they experience any of these symptoms.

Norset should not be used by individuals with known hypersensitivity to mirtazapine or any of its excipients, and it is contraindicated in patients who have taken monoamine oxidase inhibitors (MAOIs) within the past 14 days. Caution is also advised for patients with severe hepatic impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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