Olanzapine is a medication with the active ingredient olanzapine. It is also known by the brand name Zyprexa. Olanzapine is used to treat mental health conditions such as schizophrenia and bipolar disorder. It helps to improve thinking, mood, and behavior.
The Olanzapine price is approximately £0.55 – £1.16 per pills. It depends on the pack size and the amount of active ingredient (30 or 360 mg).
Olanzapine is the generic name for this medication. It is commonly sold under the brand name Zyprexa. Other brand names include Zyprexa Zydis and Zyprexa Relprevv.
Olanzapine belongs to the class of medications known as atypical antipsychotics. Atypical antipsychotics are a newer class of antipsychotic drugs that tend to have fewer side effects compared to older antipsychotics.
Olanzapine works by modulating the activity of neurotransmitters in the brain. Specifically, it affects serotonin and dopamine receptors, contributing to its antipsychotic and mood-stabilizing effects. This helps to alleviate symptoms of mental disorders such as schizophrenia and bipolar disorder.
Olanzapine is prescribed primarily for the treatment of schizophrenia and bipolar disorder. It is also used as an adjunct treatment in conjunction with antidepressants for major depressive disorder. Additionally, it can be prescribed off-label for conditions like anxiety disorders, obsessive-compulsive disorder, and anorexia nervosa.
Olanzapine is available in multiple dosage forms including oral tablets, orally disintegrating tablets, and intramuscular injections. The oral tablets come in dosages ranging from 2.5 mg to 20 mg, while intramuscular injections are typically used in acute situations.
Olanzapine should be taken once daily, with or without food. The orally disintegrating tablet should be placed in the mouth to dissolve without the need for water. Intramuscular injections should be administered by healthcare professionals.
Olanzapine exhibits high bioavailability and is extensively metabolized in the liver. It reaches peak plasma concentrations within 5-8 hours post-ingestion. The medication has a half-life of approximately 21 to 54 hours and is excreted primarily through urine.
Olanzapine can interact with several other medications. Notable interactions include increased sedation when taken with benzodiazepines and heightened risk of extrapyramidal symptoms with other antipsychotics. It may also interact with medications that induce or inhibit cytochrome P450 enzymes.
Common side effects of olanzapine include weight gain, drowsiness, and dry mouth. Other side effects may include dizziness, increased appetite, and orthostatic hypotension. Less common but serious side effects can include tardive dyskinesia and metabolic syndrome.
Olanzapine is contraindicated in patients with a known hypersensitivity to the drug. Caution is advised for those with a history of cardiovascular disease, seizures, or conditions that affect lipid metabolism. Healthcare providers should assess the risk-benefit ratio in these cases.
Olanzapine falls under Pregnancy Category C, indicating that risk to the fetus cannot be ruled out. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Olanzapine is excreted in breast milk, and therefore, breastfeeding is not recommended during treatment.
The safety and efficacy of olanzapine in pediatric patients have not been established for all indications. It is approved for use in adolescents aged 13-17 years for the treatment of schizophrenia and bipolar I disorder. Pediatric patients should be closely monitored for adverse effects such as weight gain and metabolic changes.
In geriatric patients, olanzapine should be used with caution. Elderly patients are more susceptible to side effects such as orthostatic hypotension, falls, and urinary retention. Dosage adjustments may be required based on the individual’s overall health condition.
In the event of an overdose, symptoms may include severe drowsiness, hallucinations, and seizures. Immediate medical attention is required. Treatment involves symptomatic and supportive measures, including maintaining airway patency, ensuring adequate oxygenation, and monitoring cardiac status.
Patients on olanzapine require regular monitoring of weight, blood glucose levels, and lipid profile to detect any metabolic changes. Liver function tests and complete blood counts should also be conducted periodically to identify potential adverse effects.
Store olanzapine at room temperature, away from moisture and heat. The medication should be kept out of reach of children and should not be used beyond its expiration date. Discard any unused medication in accordance with local guidelines.