What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Haloperidol (Generic of Haldol)


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Generic Equivalent - Haloperidol (Generic of Haldol)

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  • Product Details


    Haldol (Haloperidol) is a medication commonly prescribed to treat mental health disorders, including schizophrenia, acute psychosis, and bipolar disorder. It belongs to a class of drugs known as antipsychotics, which work by blocking the effects of dopamine, a neurotransmitter in the brain.

    Schizophrenia is a chronic mental illness characterized by disturbances in thinking, emotions, and behavior. Symptoms can include hallucinations, delusions, disorganized thinking, and a lack of motivation or social withdrawal. Haldol helps to alleviate these symptoms and improve overall functioning.

    Haldol works by blocking dopamine receptors in the brain, which helps to restore the balance of chemicals and reduce psychotic symptoms. It is available in various formulations, including oral tablets, injectable solutions, and long-acting depot injections for maintenance therapy.

    Fact Table




    US DailyMed



    Legal status


    Chemical Name


    Elimination half-life

    14–37 hours

    Dosage (Strength)



    Consult Doctor


    Generic of Haldol

    Protein binding


    PubChem CID






    ATC code






    Routes of administration

    By mouth


    The usual dosage is 0.5-10 mg every 4-6 hours as needed. The dosage varies widely based on the needs of the patient. Take this drug exactly as prescribed.


    The active ingredient in Haldol is haloperidol.


    Common drug-drug interactions may include:

    • Amitryptiline
    • Alcohol
    • Alprazolam
    • Antidepressants
    • Antihypertensive medications
    • Atropine
    • Barbiturates
    • Benztropine
    • Chlorpromazine
    • Clozapine
    • Diazepam
    • Hyoscyamine
    • Iloperidone
    • Levodopa
    • Lithium
    • Lorazepam
    • Loxapine
    • Lurasidone
    • Parkinson's medications
    • Olanzapine
    • Oxybutynin
    • Quetiapine
    • Quinidine
    • Risperidone
    • Scopolamine
    • Substances that prolong the QT interval
    • Temazepam
    • Thiothixene
    • Thioridazine
    • Trospium


    Before starting Haldol, discuss your medical history, current medications, and any known allergies with your healthcare provider.

    Haldol may interact with certain drugs and medical conditions, so it is crucial to provide accurate information to ensure safe and effective use.

    Haldol may also increase the risk of developing a serious condition called neuroleptic malignant syndrome (NMS), characterized by high fever, muscle stiffness, and altered mental status. If any concerning side effects occur, it is essential to seek immediate medical attention.

    Side Effects

    Common side effects are:

    • Akathisia
    • Blurred vision
    • Constipation
    • Dizziness
    • Drowsiness
    • Dry mouth
    • Extrapyramidal symptoms
    • Galactorrhea
    • Hypotension
    • Nausea
    • Neuroleptic malignant syndrome
    • Photosensitivity
    • Seizures
    • Tardive dyskinesia
    • Tachycardia
    • Urinary retention


    Haldol [package insert]. Raritan, NJ: Janssen; 2009.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 1556

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