Product image of Mirtazapina Teva-Ratio (Mirtazapine) supplied by GNH India

Mirtazapina Teva-Ratio

Active Ingredient:
Mirtazapine
Origin:
EU

Mirtazapina Teva-Ratio (Mirtazapine)

Mirtazapine, the active ingredient in Mirtazapina Teva‑Ratio, is a tetracyclic antidepressant presented as an oral tablet for oral use. It is prescribed for the treatment of major depressive disorder in adult patients and works by influencing neurotransmitter activity to improve mood and alleviate depressive symptoms.

GNH India supplies Mirtazapina Teva‑Ratio 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 is a tetracyclic antidepressant used primarily in the management of depressive disorders.

  • Major depressive disorder: reduces depressive symptoms and improves overall mood.
  • Depression with insomnia: promotes sleep onset and improves sleep quality.
  • Depression with anxiety: alleviates anxiety symptoms associated with depressive episodes.

How It Works

  • Mirtazapine acts as an antagonist at central presynaptic α2‑adrenergic receptors, thereby increasing norepinephrine release, and blocks 5‑HT2 and 5‑HT3 receptors, enhancing serotonergic transmission. It also antagonizes H1 histamine receptors, contributing to its sedative properties. The combined effect results in heightened noradrenergic and serotonergic activity that helps correct mood disturbances.

Side Effects

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

Common Side Effects

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

Serious or Rare Side Effects

  • Agranulocytosis or severe neutropenia
  • Suicidal thoughts or behavior, especially early in treatment
  • Severe skin reactions such as Stevens‑Johnson syndrome
  • Hepatic dysfunction or elevated liver enzymes
  • Seizures
  • Hyponatremia due to SIADH

Precautions & Warnings

Before initiating therapy, clinicians should consider several safety aspects.

  • Assess hepatic function: adjust use in severe liver impairment.
  • Monitor body weight: significant weight gain can occur.
  • Evaluate for suicidal ideation: heightened risk at treatment start.
  • Use caution in elderly patients: increased fall risk due to sedation.
  • Avoid abrupt discontinuation: taper under medical supervision to prevent withdrawal.
  • Store at room temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Mirtazapine can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

  • Monoamine oxidase inhibitors (MAOIs): risk of serotonin syndrome.
  • Strong CYP2D6 inhibitors (e.g., fluoxetine, paroxetine): may raise mirtazapine plasma levels.
  • Central nervous system depressants (alcohol, benzodiazepines): enhanced sedation and respiratory depression.

Moderate Interactions (Monitor Closely)

  • Other serotonergic agents (SSRIs, SNRIs, tramadol): additive serotonergic effects.
  • Anticholinergic drugs (e.g., diphenhydramine): increased anticholinergic burden.
  • Warfarin: potential alteration of INR, requiring coagulation monitoring.

Frequently Asked Questions

Mirtazapina Teva‑Ratio contains mirtazapine, a tetracyclic antidepressant indicated for the treatment of major depressive disorder in adult patients. It may also be used to address depressive symptoms that include insomnia or anxiety, as determined by a qualified prescriber.

Mirtazapine blocks presynaptic α2‑adrenergic receptors, which increases norepinephrine release, and antagonizes 5‑HT2 and 5‑HT3 serotonin receptors while stimulating 5‑HT1 receptors. This combined action enhances noradrenergic and serotonergic neurotransmission, helping to correct mood imbalances associated with depression.

The appropriate dose of Mirtazapina Teva‑Ratio is determined individually by the prescribing healthcare professional based on the patient’s clinical condition, response to therapy, and tolerability. Dosage adjustments are made according to medical judgment and patient needs.

The safety of mirtazapine in pregnancy and lactation has not been definitively established. Healthcare providers should weigh the potential benefits against possible risks and consider alternative treatments when treating pregnant or nursing individuals.

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, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and any necessary import documentation.

Mirtazapine differs from selective serotonin reuptake inhibitors (SSRIs) by its dual noradrenergic and serotonergic activity and strong antihistamine effect, which often leads to sedation and weight gain. It may be preferred when patients need a sedating antidepressant or have poor appetite, whereas SSRIs are generally less sedating.

Mirtazapina Teva‑Ratio should be stored at room temperature, below 25 °C, in its original packaging. Keep the product away from moisture, direct sunlight, and excessive heat to maintain its stability and potency.

The medication is taken orally, usually once daily in the evening, with or without food. Patients should follow the prescribing clinician’s instructions regarding timing and whether to swallow the tablet whole or with a small amount of water.

Serious risks include the potential for suicidal thoughts or behaviors, especially early in treatment, agranulocytosis or severe neutropenia, hyponatremia due to SIADH, and rare severe skin reactions such as Stevens‑Johnson syndrome. Prompt medical attention is required if any of these occur.

Mirtazapina Teva‑Ratio is contraindicated in patients who have taken monoamine oxidase inhibitors within the past 14 days, those with known hypersensitivity to mirtazapine, and individuals with severe hepatic impairment where the drug’s safety cannot be assured.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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