Deprex (Olanzapine) 20mg

Deprex (Olanzapine) 20mg

Deprex (Olanzapine) 20mg

Active ingredient:  Olanzapine

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Deprex (Olanzapine) 20mg is used to treat nervous, emotional, and mental conditions (e.g., schizophrenia). It may also be used alone or with other medicines (e.g., lithium or valproate) to treat bipolar disorder or mania that is part of bipolar disorder.

General information

Deprex (Olanzapine) 20mg is used to treat nervous, emotional, and mental conditions (e.g., schizophrenia). It may also be used alone or with other medicines (e.g., lithium or valproate) to treat bipolar disorder (manic-depressive illness) or mania that is part of bipolar disorder. Deprex should not be used to treat behavioral problems in older adult patients who have dementia or Alzheimer's disease.


Deprex (Olanzapine) 20mg is an antipsychotic agent and has affinities for serotonin 5HT2A/2C, 5HT3, 5HT6; dopamine D1, D2, D3, D4, D5; cholinergic muscarinic receptors M1-M5; α1 adrenergic; and histamine H1 receptors. The mechanism of action of Olanzapine, as with other drugs having efficacy in schizophrenia, is unknown. However, it has been proposed that this drug’s efficacy in schizophrenia is mediated through a combination of dopamine and serotonin type 2 (5HT2) antagonism.

Olanzapine is well absorbed after oral administration, reaching peak plasma concentrations within 5 to 8 hours. The absorption is not affected by food. Olanzapine is not mutagenic or clastogenic as well as not carcinogenic.

Directions of Deprex (Olanzapine) 20mg

The recommended starting dose for Olanzapine is 10 mg/day, administered as a single daily dose without regard to meals. Daily dosage may subsequently be adjusted on the basis of individual clinical status within the range of 5-20 mg daily. An increase to a dose greater than the routine therapeutic dose of 10 mg/day i.e. to a dose of 15 mg/day or greater, is recommended only after appropriate clinical reassessment.

  • Children: Olanzapine has not been studied in subjects under 18 years of age.
  • Elderly patients (age 65 and over): starting dose 5 mg per day
  • Patients with hepatic and renal impairment: starting dose 5 mg per day

When more than one factor is present which might result in slower metabolism (female gender, geriatric age, non-smoking status), consideration should be given to decreasing the starting dose. Dose escalation, when indicated, should be conservative in such patients.

Possible side effect

Very common undesirable effects are somnolence and weight gain. Besides increased appetite, elevated glucose levels, elevated triglyceride levels, dizziness, akathisia, Parkinson's disease, dyskinesia, orthostatic hypotension, mild and transient anticholinergic effects including constipation and dry mouth, asthenia, edema and photosensitivity reaction etc. may be observed.

Pregnancy and Lactation

Deprex (Olanzapine) 20mg should be used in pregnancy only if the potential benefits justify the potential risk to the foetus. So, patients should be advised to notify their physician if they become pregnant or intend to become pregnant during treatment with Olanzapine. There is no report to show teratogenecity. Patients should not breast feed if they are taking Olanzapine.

Drug Interactions

Drugs that induce CYP1A2 or glucoronyl transferase enzymes (omeprazole, rifampicin), inhibitor of CYP1A2 (fluvoxamine), centrally acting drugs, antihypertensive agents.

A product that may interact with this drug is: metoclopramide.

Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana (cannabis), drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or antihistamines (such as cetirizine, diphenhydramine).


This is contraindicated in those patients with a known hypersensitivity to Olanzapine as well as in patients with known risk for narrow-angle glaucoma. Concomitant illness: Olanzapine in patients with concomitant illness is limited, caution is advised when prescribing for patients with prostatic hypertrophy, or paralytic ileus and related conditions.

Neuroleptic Malignant Syndrome (NMS): If a patient develops signs and symptoms indicative of NMS, or presents with unexplained high fever without additional clinical manifestations of NMS, all antipsychotic medicines, including olanzapine must be discontinued.


Deprex (Olanzapine) 20mg should be used cautiously in patients who have a history of seizures or have conditions associated with seizures. Olanzapine should be used cautiously in patients with low leukocyte and/or neutrophil counts for any reason, drug induced bone marrow depression/toxicity caused by radiation therapy or chemotherapy, hypereosinophilic conditions, impaired hepatic function, and patients using hepatotoxic medicines, centrally acting drug and medicines know to increase QT interval, especially in the elderly. Patients should be cautioned about operating hazardous machinery, including motor vehicles.

Overdose Effects

Symptoms: Tachycardia, agitation/aggressiveness, dysarthria, extrapyramidal symptoms, reduced level of consciousness ranging from sedation to coma.

Management: Symptomatic and supportive treatment. Gastric lavage and admin of activated charcoal may be effective.


Store Deprex (Olanzapine) 20mg at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store the drugs in the bathroom. Keep all drugs away from reach of children and pets.

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