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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
Droperidol chemical structure
| 1-[1-[4-(4-fluorophenyl)-4-oxo-butyl]- 3,6-dihydro-2H-pyridin-4-yl]- 3H-benzoimidazol- 2-one|
| CAS number |
| ATC code |
| PubChem |
| DrugBank |
|Molecular weight||379.428 g/mol|
|Elimination half-life||2.3 hours|
|Pregnancy category||C (US)|
|Routes of administration||Intraveneous, Intramuscular|
Droperidol is a butyrophenone, and is a potent D2 (dopamine receptor) antagonist with some histamine and serotonin antagonist activity. It has a central antiemetic action and is frequently used in the treatment of postoperative nausea and vomiting in adult doses as low as 0.625 or 1.25 mg.
It has also been used as an anti-psychotic in doses as high as 10mg i.m.
In 2001, the FDA changed the labeling requirements for droperidol injection, to include a so-called "Black Box Warning", citing concerns of QT prolongation and torsades de pointes. The evidence for this is disputed, with less than 20 reported cases of torsades in 30 years and most of those having received doses in excess of 50mg in a 24-hour period. It appears that the QT-prolongation is a dose-related effect and that in low doses, droperidol is not a significant risk.
If you experience any of the rare side-effects such as spasms of the face, one should have diphenhydramine (Benadryl®) injected into their IV to block the effects of the drug. If one is at home, fast acting Benadryl® dissolving mouth strips should be taken followed by a pill.
- Scuderi PE: Droperidol: Many questions, few answers. Anesthesiology 2003; 98: 289-90
- Lischke V, Behne M, Doelken P, Schledt U, Probst S, Vettermann J. Droperidol causes a dose-dependent prolongation of the QT interval. Department of Anesthesiology and Resuscitation, Johann Wolfgang Goethe-University Clinics, Frankfurt am Main, Germany.
Psycholeptics: antipsychotics (N05A)
|Phenothiazine typical antipsychotics||Chlorpromazine • Fluphenazine • Mesoridazine • Perphenazine • Prochlorperazine • Promazine • Thioridazine/Sulforidazine • Trifluoperazine|
|Other typical antipsychotics||Indoles (Molindone) • Butyrophenones (Azaperone, Benperidol, Droperidol, Haloperidol) • Thioxanthenes (Flupentixol, Chlorprothixene, Thiothixene, Zuclopenthixol) • diphenylbutylpiperidines (Fluspirilene, Penfluridol, Pimozide) • other (Loxapine)|
|Atypical antipsychotics||Butyrophenones (Melperone) • Indoles (Sertindole, Ziprasidone) • Benzamides (Sulpiride, Remoxipride, Amisulpride) • diazepines/oxazepines/thiazepines (Clozapine, Olanzapine, Quetiapine) • other (Aripiprazole, Risperidone, Paliperidone, Zotepine)|
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