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Inapsine Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Inapsine (droperidol) is used to reduce nausea and vomiting caused by surgery or other medical procedures. It is a sedative, tranquilizer, and anti-nausea medication. This medication is available in generic form. Common side effects include drowsiness, dizziness, or feeling restless or anxious.
The maximum recommended adult initial dose of Inapsine is 2.5 mg IM (intramuscular) or slow IV (intravenous). For children two to 12 years of age, the maximum recommended initial dose is 0.1 mg/kg, taking into account the patient's age and other clinical factors. Inapsine may interact with arsenic trioxide, diuretics (water pills), laxatives, drugs to treat psychiatric disorders, anti-malaria medication, heart or blood pressure medications, heart rhythm medication, drugs to treat high blood pressure or a prostate disorder, narcotics, or antibiotics, Tell your doctor all medications you use. During pregnancy, Inapsine should be taken only if prescribed. It is unknown if this drug passes into breast milk or if it could harm a nursing baby. Consult your doctor before breast-feeding.
Our Inapsine (droperidol) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Inapsine in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Tell your caregivers at once if you have any of these serious side effects:
- feeling like you might pass out;
- dizziness, fainting, fast or pounding heartbeat, fluttering in your chest;
- chest tightness and trouble breathing;
- fever, stiff muscles, confusion, sweating, fast or uneven heartbeats;
- confusion, hallucinations;
- tremor (uncontrolled shaking); or
- restless muscle movements in your eyes, tongue, jaw, or neck.
Less serious side effects include:
- drowsiness, dizziness; or
- feeling restless or anxious.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Inapsine (Droperidol) »
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Inapsine FDA Prescribing Information: Side Effects
QT interval prolongation, torsade de pointes, cardiac arrest, and ventricular tachycardia have been reported in patients treated with INAPSINE (droperidol) . Some of these cases were associated with death. Some cases occurred in patients with no known risk factors, and some were associated with droperidol doses at or below recommended doses. Physicians should be alert to palpitations, syncope, or other symptoms suggestive of episodes of irregular cardiac rhythm in patients taking INAPSINE (droperidol) and promptly evaluate such cases (see WARNINGS, Effects on Cardiac Conduction).
The most common somatic adverse reactions reported to occur with INAPSINE (droperidol) are mild to moderate hypotension and tachycardia, but these effects usually subside without treatment. If hypotension occurs and is severe or persists, the possibility of hypovolemia should be considered and managed with appropriate par-enteral fluid therapy.
The most common behavioral adverse effects of INAPSINE (droperidol) include dysphoria, postoperative drowsiness, restlessness, hyperactivity and anxiety, which can either be the result of an inadequate dosage (lack of adequate treatment effect) or of an adverse drug reaction (part of the symptom complex of akathisia). Care should be taken to search for extrapyramidal signs and symptoms (dystonia, akathisia, oculogyric crisis) to differentiate these different clinical conditions. When extrapyramidal symptoms are the cause, they can usually be controlled with anticholinergic agents.
Postoperative hallucinatory episodes (sometimes associated with transient periods of mental depression) have also been reported.
Elevated blood pressure, with or without pre-existing hypertension, has been reported following administration of INAPSINE (droperidol) combined with SUBLIMAZE (fentanyl citrate) or other parenteral analgesics. This might be due to unexplained alterations in sympathetic activity following large doses: however, it is also frequently attributed to anesthetic or surgical stimulation during light anesthesia.
Read the entire FDA prescribing information for Inapsine (Droperidol) »
Additional Inapsine Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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