Product image of Kefrenex (Quetiapine) supplied by GNH India

Kefrenex

Active Ingredient:
Quetiapine
Origin:
EU

Kefrenex (Quetiapine)

Quetiapine, the active ingredient in Kefrenex, is an atypical antipsychotic presented as an oral tablet for oral use. It is prescribed to manage symptoms of schizophrenia, bipolar disorder, and as an adjunctive treatment for major depressive disorder in adult patients.

GNH India supplies Kefrenex as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards, provides regulatory documentation, and offers reliable logistics for global distribution. Clients benefit from competitive pricing and dedicated technical support throughout the procurement process.

Manufacturer / TM Owner

Aristo Pharma Sp. Z O.O.

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Indications & Clinical Uses

Quetiapine is used in the management of several psychiatric disorders by modulating neurotransmitter activity.

  • Schizophrenia: reduces psychotic symptoms such as hallucinations and delusions.
  • Bipolar disorder: stabilizes mood and decreases manic or depressive episodes.
  • Major depressive disorder (adjunctive therapy): enhances antidepressant response when added to standard treatment.

How It Works

  • Quetiapine acts as an antagonist at multiple neurotransmitter receptors, notably serotonin 5‑HT2A and dopamine D2 receptors, while also exhibiting moderate affinity for histamine H1, adrenergic α1 and muscarinic receptors. This receptor profile reduces dopaminergic and serotonergic overactivity, contributing to antipsychotic and mood‑stabilising effects across various psychiatric conditions. The combined antagonism dampens excitatory pathways while its antihistaminic and anticholinergic actions may cause sedation and orthostatic effects, which are considered in clinical use.

Side Effects

Quetiapine may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

  • Drowsiness or sedation
  • Dry mouth
  • Constipation
  • Weight gain
  • Dizziness or light‑headedness

Serious or Rare Side Effects

  • Neuroleptic malignant syndrome
  • Tardive dyskinesia
  • Severe hypotension
  • Agranulocytosis (rare)

Precautions & Warnings

When prescribing quetiapine, clinicians should observe several safety considerations.

  • Dose titration: start low and increase gradually to minimize sedation and orthostatic effects.
  • Cardiovascular monitoring: assess blood pressure and heart rate, especially in patients with pre‑existing hypertension.
  • Metabolic screening: monitor weight, glucose and lipid levels periodically due to risk of metabolic changes.
  • CNS effects: advise patients not to operate machinery or drive until they know how the drug affects them.
  • Store at ambient temperature: keep tablets below 25 °C in the original container, protected from moisture and light.

Avoid Interactions

Quetiapine can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

  • CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin): may increase quetiapine plasma concentrations, raising risk of toxicity.
  • CNS depressants (e.g., benzodiazepines, opioids): additive sedation and respiratory depression.

Moderate Interactions (Monitor Closely)

  • CYP3A4 inducers (e.g., rifampin, carbamazepine): may reduce quetiapine levels, diminishing therapeutic effect.
  • Antihypertensive agents: enhanced hypotensive response due to additive blood pressure lowering.

Frequently Asked Questions

Kefrenex contains quetiapine, an atypical antipsychotic indicated for the treatment of schizophrenia, bipolar disorder (including manic and depressive phases), and as an adjunctive therapy for major depressive disorder when used together with standard antidepressants.

Quetiapine works by blocking several neurotransmitter receptors, especially serotonin 5‑HT2A and dopamine D2 receptors. This antagonism reduces excessive dopaminergic and serotonergic activity, helping to control psychotic symptoms, stabilize mood, and improve depressive symptoms in the conditions for which it is prescribed.

The appropriate dose of Kefrenex is individualized and determined by a qualified prescriber based on the specific condition, patient age, response, and tolerability. Dosage adjustments are made according to clinical judgment and therapeutic goals.

Safety data for quetiapine in pregnancy and lactation are limited. The medication should only be used if the potential benefits outweigh the risks, and this decision must be made by a healthcare professional in consultation with the patient.

To order Kefrenex, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and necessary import documentation.

Kefrenex (quetiapine) is an atypical antipsychotic with a broader receptor profile than many typical agents, offering both antipsychotic and mood‑stabilising effects. Compared with drugs such as risperidone, quetiapine often has a lower risk of extrapyramidal symptoms but may cause more sedation and metabolic changes, influencing the choice based on patient needs.

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

Kefrenex is taken orally, usually as a tablet swallowed whole with water. It may be taken with or without food, but patients should follow the prescriber’s instructions regarding timing and any dose‑adjustment schedule.

Serious adverse reactions to Kefrenex include neuroleptic malignant syndrome, tardive dyskinesia, severe hypotension, and rare blood dyscrasias such as agranulocytosis. Patients should be monitored for signs of these conditions and seek immediate medical attention if they occur.

Kefrenex should not be used by individuals with known hypersensitivity to quetiapine or any of its excipients. Caution is also advised for patients with uncontrolled cardiovascular disease, severe hepatic impairment, or a history of neuroleptic malignant syndrome.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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