Haloperidol Injection 5 mg/mL

Description

Haloperidol Injection 5 mg/mL is a sterile solution containing Haloperidol Lactate, a highly potent first-generation (typical) antipsychotic. This injectable formulation is designed for intravenous (IV) or intramuscular (IM) administration, allowing for rapid and effective control of acute, severe psychiatric and behavioral emergencies. It acts by blocking dopamine receptors in the brain, swiftly alleviating psychotic symptoms, controlling severe agitation, and managing aggressive or violent behaviors.

Advantages

Rapid Onset of Action: Delivers a quick therapeutic effect, crucial for managing acute and dangerous psychiatric emergencies.
Powerful Sedation & Tranquilization: Highly effective in rapidly calming severe agitation, excitement, aggression, and psychosis.
Emergency Intervention: Indispensable for situations requiring immediate control, such as acute psychosis, severe delirium, or violent behavior.
Reliable Bioavailability: Bypasses the gastrointestinal system, ensuring predictable and complete absorption of the dose.
Versatile Administration: Can be given IM for rapid absorption or IV in specific, carefully monitored situations (though IM is more common for acute agitation).
Anti-emetic Effect: Possesses strong anti-nausea and anti-vomiting properties, useful in severe cases (e.g., intractable hiccups, palliative care).

Uses

Haloperidol Injection 5 mg/mL is primarily indicated for the rapid control of acute and severe psychiatric and behavioral disturbances. Its key uses include:

Acute Psychosis: Rapid control of acute psychotic states, including exacerbations of schizophrenia, manic episodes with psychotic features, or other severe psychotic disorders.
Acute Agitation and Aggression: Emergency management of severe agitation, excitement, or aggressive/violent behavior in patients with psychiatric disorders or delirium, where oral medication is not feasible or rapid control is required.
Tourette’s Disorder: Short-term management of severe and disabling motor and vocal tics that are causing significant distress or impairment.
Severe Delirium: Management of severe agitation, confusion, and psychotic features in patients with delirium, especially in critical care settings (often used cautiously and at low doses).
Intractable Hiccups (Off-label): Used in rare cases for persistent and severe hiccups that do not respond to other treatments.
Nausea and Vomiting (Palliative Care/Off-label): Sometimes used in palliative care settings for severe, refractory nausea and vomiting due to its strong anti-dopaminergic effects.

Nature

Haloperidol is a first-generation (typical) antipsychotic, belonging to the butyrophenone class. Its primary mechanism of action involves potent antagonism of dopamine D2 receptors in the brain, particularly in the mesolimbic pathway, which is associated with positive psychotic symptoms. By blocking these receptors, it reduces the excessive dopaminergic activity believed to contribute to hallucinations, delusions, and thought disorganization.

In addition to D2 receptor blockade, Haloperidol also has antagonistic effects on alpha-1 adrenergic receptors (contributing to sedation and a risk of orthostatic hypotension) and weak antagonistic effects on histamine H1 receptors (contributing to sedation). The injectable form, especially the lactate salt, ensures rapid dissolution and absorption, facilitating its immediate impact on the central nervous system. Its high affinity for D2 receptors also contributes to its potential for extrapyramidal side effects (EPS), such as acute dystonia and akathisia, especially with rapid administration or higher doses.

Storage

Controlled Room Temperature: Store Haloperidol Injection 5 mg/mL at controlled room temperature, typically between 20°C to 25°C (68°F to 77°F). Brief excursions between 15°C and 30°C (59°F and 86°F) are generally acceptable.
Protect from Light: Keep the ampoules or vials in their original carton to protect them from light, which can cause degradation of the active ingredient.
Do Not Freeze: Freezing can compromise the integrity of the solution.
Do Not Refrigerate: Refrigeration may cause precipitation.
Discard Unused Portion: Any unused portion of the injection should be discarded immediately after opening. It is a single-dose preparation, and microbial contamination is possible once the seal is broken.
Keep Out of Reach of Children: Store the medication in a secure place, well out of the sight and reach of children and pets.
Check Expiry Date: Always check the expiry date on the packaging. Do not use the injection beyond this date.