Droperidol: Difference between revisions

No edit summary
Line 41: Line 41:
===Common===
===Common===
*Somnolence, dysphoria, anxiety
*Somnolence, dysphoria, anxiety
*'''Akathisia''': restlessness, inability to sit still, distressing disquiet
*[[Akathisia]]
**Treatable with diphenhydramine (50mg PO/IM/IV) OR benztropine (1-2mg IV) and others<ref>Pringsheim T, Gardner D, Addington D, et al. The Assessment and Treatment of Antipsychotic-Induced Akathisia. Can J Psychiatry. 2018;63(11):719-729. doi:10.1177/0706743718760288</ref><ref>Rice, J. CoreEM.net - Akathisia. https://coreem.net/core/akathisia/ Accessed: Oct 4, 2021.</ref>
*Hypotension
*Hypotension
*Tachycardia
*Tachycardia
Line 55: Line 54:


==Comments==
==Comments==
In my experience akathisia and dystonia are more common in women up to about 30 years old and teenagers of both sexes. I don't use it on anyone younger than 18. Also, there seems to be an association with rate of administration and side-effects. When I order it, I have the nurses put the dose in a 10mL saline flush and give it over a minute. Anecdotally, this seems to decrease the rate of side-effects. When they occur, 50 mg diphenhydramine IVP is my go-to medication, which usually works, though I have had to redose.
It is VERY useful as an adjunct to other pain medications, opiates or otherwise, when you are reaching your comfort level for those meds.
It is far superior to ondansetron for intractable vomiting, especially cannabinoid hyperemesis syndrome, which some readers will use droperidol's sister drug, haloperidol, to treat.


==See Also==
==See Also==

Revision as of 16:58, 6 October 2021

Administration

Adult Dosing

Combative patient

  • 5-10mg IV
  • 10mg IM

Nausea/vomiting

  • 0.625-2.5mg IV

Headache

  • 2.5mg IV or 2.5-5mg IM

Pain (with or without opiate tolerance)

  • 0.625-5mg or higher IV/IM[1][2]

Pediatric Dosing

Nausea/vomiting

  • 2-12yo: 0.015-0.1mg/kg IV/IM

Special Populations

  • Pregnancy Rating: C
  • Lactation risk: Infant risk cannot be ruled out
  • Renal dosing: Administer with caution
  • Hepatic dosing: Administer with caution

Contraindications

  • Allergy to class/drug
  • Known or suspected prolonged QT

Adverse Reactions

Serious

Common

  • Somnolence, dysphoria, anxiety
  • Akathisia
  • Hypotension
  • Tachycardia

Pharmacology

  • Half-life: 123-147m (adults), 75-127m (children)
  • Metabolism: hepatic
  • Excretion: mostly renal

Mechanism of Action

  • Dopamine (D2) antagonist. Some serotonergic, histaminergic, and α-adrenergic effect

Comments

See Also

External Links

References

  1. Richards JR, Richards IN, Ozery G, Derlet RW. Droperidol analgesia for opioid-tolerant patients. J Emerg Med. 2011 Oct;41(4):389-96. doi: 10.1016/j.jemermed.2010.07.005. Epub 2010 Sep 15. PMID: 20832967.
  2. Miller AC, Khan AM, Castro Bigalli AA, Sewell KA, King AR, Ghadermarzi S, Mao Y, Zehtabchi S. Neuroleptanalgesia for acute abdominal pain: a systematic review. J Pain Res. 2019;12:787-801 https://doi.org/10.2147/JPR.S187798
  3. Gaw CM, Cabrera D, Bellolio F, Mattson AE, Lohse CM, Jeffery MM. Effectiveness and safety of droperidol in a United States emergency department. Am J Emerg Med. 2020;38(7):1310-1314. doi:10.1016/j.ajem.2019.09.007