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Wheeless' Textbook of Orthopaedics
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Prochlorperazine/Compazine




- for N/V/Agitation/Antiemetic/Antipyschotic;


- Adult: Antiemetic: 5-10 mg PO/IM/IV tid/qid, or 5-10mg deep IM q4-6hr;


- Up to 40mg PO q6hr max; 25 mg PR q6-8 hr;


- Antipyschotic: 10-20 mg IM acutely or 5-10 mg PO tid/qid for maintainance;


- treat extrapyridimal effects with diphenhydramine 25mg in the bag, q6hr;


- Contraindications include: comatose states, bone marrow depression,


    children <9kg or younger than 2yrs, pediatric surgery;


- Prochlorperazine may mask the underlying disorder causing the nausea and


    vomiting (e.g. drug overdose, intestinal obstruction);


- Parental administration in patients with impaired cardiovascular


  system may result in hypotension; must decrease dose in elderly


  or debilitated patients;


- Note: much larger dose required for antipyschotic effect;


- EPS is common;


- Peds: >10kg: 0.4 mg/kg/24hrs PO in 3-4 DD or 0.1-0.15 mg/kg/dose IM;


* Note: w/ patients receiving chemotherapy:


  - has limited use as a single agent, effective in only 15% of patients


      receiving non cis-platin agents;   Markedly less effective than


      cannabinoids, corticosteroids and high dose metclopromide;





Original Text by Clifford R. Wheeless, III, MD.