Olanzapine: Difference between revisions

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==Adult Dosing==
==Adult Dosing==
*Acute agitation (associated with schizophrenia or bipolar disorder): short-sting IM injection: initial dose 10 mg IM (consider lowering to 5 or 7.5 mg depending on clinical factors), additional dose 10 mg IM maybe considered. Allowed 2 hours after the first dose and 4 hours after the second dose to evaluate response (Maximum dose 30 mg/day)
*Acute agitation (associated with schizophrenia or bipolar disorder): Short-acting IM injection:  
**Special risk patients: consider lowering dose to 2.5 mg in patients who are debilitated, who have risk of hypotension or who maybe more pharmacodynamically sensitive to olanzapine.
**initial dose: 10 mg IM (consider lowering to 5 or 7.5 mg depending on clinical factors), additional dose of 10 mg IM maybe considered. Allowed 2 hours after the first dose and 4 hours after the second dose to evaluate response (maximum dose: 30 mg/day).
*Schizophrenia
**Special risk patients: consider lowering dose to 2.5 mg IM in patients who are debilitated, who have risk of hypotension or who maybe more pharmacodynamically sensitive to olanzapine.
*Schizophrenia: Oral
**Initial dose 5-10 mg once daily, increase to 10 mg daily by the first week, adjust by 5 mg daily at 1-week interval (maximum dose: 20 mg daily), maintenance dose: 10-20 mg daily.
**Special risk patient: Initial dose: 5 mg once daily in patients who are debilitated, who have risk of hypotension or who maybe more pharmacodynamically sensitive to olanzapine.
*Bipolar I (acute mixed or manic episode): Oral
**Monotherapy: Initial dose: 10-15 mg once daily, increase by 5 mg daily with interval >24 hours, maintenance dose: 5-20 mg daily (maximum dose: 20 mg daily).
**Combination therapy with lithium or valproate: Initial dose 10 mg daily (dose range: 5-20 mg daily)
*Depression: Oral
**Depression associated with bipolar disorder (in combination with fluoxetine): Initial dose: 5 mg once daily, adjust to dose range of 5-12.5 mg daily.


==Pediatric Dosing==
==Pediatric Dosing==

Revision as of 16:33, 10 August 2016

Administration

  • Type: Antipsychotic, second generation
  • Dosage Forms: tablets, solution, suspension
  • Routes of Administration: oral, intramuscular
  • Common Trade Names: Zyprexa, Zydis

Adult Dosing

  • Acute agitation (associated with schizophrenia or bipolar disorder): Short-acting IM injection:
    • initial dose: 10 mg IM (consider lowering to 5 or 7.5 mg depending on clinical factors), additional dose of 10 mg IM maybe considered. Allowed 2 hours after the first dose and 4 hours after the second dose to evaluate response (maximum dose: 30 mg/day).
    • Special risk patients: consider lowering dose to 2.5 mg IM in patients who are debilitated, who have risk of hypotension or who maybe more pharmacodynamically sensitive to olanzapine.
  • Schizophrenia: Oral
    • Initial dose 5-10 mg once daily, increase to 10 mg daily by the first week, adjust by 5 mg daily at 1-week interval (maximum dose: 20 mg daily), maintenance dose: 10-20 mg daily.
    • Special risk patient: Initial dose: 5 mg once daily in patients who are debilitated, who have risk of hypotension or who maybe more pharmacodynamically sensitive to olanzapine.
  • Bipolar I (acute mixed or manic episode): Oral
    • Monotherapy: Initial dose: 10-15 mg once daily, increase by 5 mg daily with interval >24 hours, maintenance dose: 5-20 mg daily (maximum dose: 20 mg daily).
    • Combination therapy with lithium or valproate: Initial dose 10 mg daily (dose range: 5-20 mg daily)
  • Depression: Oral
    • Depression associated with bipolar disorder (in combination with fluoxetine): Initial dose: 5 mg once daily, adjust to dose range of 5-12.5 mg daily.

Pediatric Dosing

Special Populations

Renal Dosing

  • Adult:
  • Pediatric:

Hepatic Dosing

  • Adult:
  • Pediatric:

Contraindications

  • Allergy to class/drug

Adverse Reactions

Serious

Common

Pharmacology

  • Half-life:
  • Metabolism:
  • Excretion:

Mechanism of Action

Comments

See Also

References