Product image of Mizapin (Mirtazapine) supplied by GNH India

Mizapin

Active Ingredient:
Mirtazapine
Origin:
EU

Mizapin (Mirtazapine)

Mirtazapine, the active ingredient in Mizapin, 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 and works by modulating neurotransmitter activity to improve mood and sleep patterns.

GNH India supplies Mizapin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The product meets EU quality standards and is manufactured under strict Good Manufacturing Practice guidelines.

Manufacturer / TM Owner

Zentiva, K.S.

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Indications & Clinical Uses

Mirtazapine, a NaSSA antidepressant, is employed in the therapeutic management of depressive disorders, particularly major depressive disorder, by influencing central neurotransmitter pathways.

  • Major depressive disorder: reduces depressive symptoms, improves sleep quality, and can increase appetite and weight, thereby addressing common features of the illness in adult patients.

How It Works

  • Mirtazapine antagonizes central presynaptic α2‑adrenergic receptors, which disinhibits norepinephrine release, and blocks postsynaptic 5‑HT2 and 5‑HT3 receptors, enhancing serotonergic transmission while reducing serotonergic side‑effects. This combined action increases overall norepinephrine and serotonin availability in key brain regions involved in mood regulation.

Side Effects

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

Common Side Effects

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

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Seizures
  • Hyponatremia (low sodium levels)
  • Suicidal thoughts or behavior
  • Severe skin reactions (e.g., Stevens‑Johnson syndrome)
  • Cardiac arrhythmias

Precautions & Warnings

Before initiating therapy, clinicians should evaluate patient‑specific factors and monitor for potential risks.

  • Pregnancy: safety not established; use only if benefits outweigh risks.
  • Elderly: increased sensitivity to sedation and falls; start at low dose.
  • Liver impairment: consider dose adjustment and monitor hepatic function.
  • Concomitant MAO inhibitors: avoid due to risk of serotonin syndrome.
  • Suicidal ideation: monitor closely during early treatment.
  • Store at ambient temperature: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Mirtazapine can interact with several drug classes; awareness of interaction severity guides clinical decisions.

Major Interactions (Avoid)

  • Monoamine oxidase inhibitors (MAOIs): risk of hypertensive crisis and serotonin syndrome.
  • Other serotonergic agents (SSRIs, SNRIs, tramadol, linezolid): heightened serotonin toxicity.
  • CNS depressants (alcohol, benzodiazepines): additive sedation and respiratory depression.

Moderate Interactions (Monitor Closely)

  • CYP2D6 inhibitors (paroxetine, fluoxetine): may increase mirtazapine plasma levels.
  • Antihypertensive drugs: possible additive hypotensive effect.
  • Anticholinergic medications: may exacerbate dry mouth and constipation.
  • Carbamazepine: may reduce mirtazapine exposure.
  • Oral contraceptives: potential alteration of hormonal efficacy.

Frequently Asked Questions

Mizapin contains the active ingredient mirtazapine and 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 by modulating neurotransmitter activity in the brain.

Mirtazapine works by blocking presynaptic α2‑adrenergic receptors, which increases norepinephrine release, and by antagonizing postsynaptic 5‑HT2 and 5‑HT3 receptors. This dual action raises overall serotonin and norepinephrine levels, improving mood and reducing anxiety.

The dosage of Mizapin is individualized by the prescribing clinician based on the patient’s clinical condition, response, and tolerability. Physicians determine the appropriate starting dose and any subsequent adjustments.

Safety of mirtazapine in pregnancy and lactation has not been definitively established. It should only be used if the potential benefit justifies the potential risk to the fetus or infant, and the decision must be made by a qualified healthcare professional.

To request Mizapin, 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.

Mizapin (mirtazapine) belongs to the NaSSA class, differing from selective serotonin reuptake inhibitors (SSRIs) by also enhancing norepinephrine release and blocking specific serotonin receptors. This profile often results in pronounced sedative and appetite‑stimulating effects, which can be advantageous for patients with insomnia or weight loss.

Mizapin tablets should be stored at ambient temperature, below 25 °C, in the original container to protect them from moisture and light. Keep the medication out of reach of children and do not use after the expiry date.

Mizapin is taken orally, usually once daily in the evening with or without food, as directed by the prescribing clinician. Swallow the tablet whole with a glass of water; do not crush or chew unless instructed otherwise.

Serious risks include agranulocytosis or severe neutropenia, seizures, hyponatremia, and the emergence or worsening of suicidal thoughts, especially during early treatment. Patients should be monitored closely for any signs of infection, neurological changes, electrolyte disturbances, or mood worsening.

Mizapin is contraindicated in patients who have taken a monoamine oxidase inhibitor within the past 14 days. Caution is also advised for individuals with known hypersensitivity to mirtazapine or any of the tablet’s excipients.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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