Perphenazine: Uses and Side Effects and Dosage
Written by Medicover Team and Medically Reviewed by Dr Siva Anoop Yella, Psychiatry
Perphenazine is an antipsychotic medication used to manage symptoms of schizophrenia and severe nausea or vomiting. It works by balancing the levels of dopamine in the brain. Perphenazine dosage must be carefully followed as advised by a doctor. Perphenazine side effects may include drowsiness, dizziness, or dry mouth. Serious issues like perphenazine overdose require immediate medical help.
Perphenazine belongs to a class of medications known as phenothiazines, specifically used as an antipsychotic drug. It is primarily prescribed to manage schizophrenia and other related psychiatric conditions. Additionally, it can help alleviate severe nausea and vomiting.
Perphenazine tablet is utilized for the treatment of various mental and mood disorders, including:
Perphenazine is mainly used to treat psychiatric conditions, particularly schizophrenia and severe nausea or vomiting. It helps manage symptoms like hallucinations, confusion, and agitation.
Perphenazine works by blocking dopamine receptors in the brain. Dopamine is a chemical that influences mood and behaviour. By reducing dopamine activity, Perphenazine helps calm overactive brain signals that cause psychosis or severe nausea. It acts on the nervous system but does not significantly affect hormones.
Dosage depends on the patient's condition and response to treatment. It is usually taken 1 to 3 times a day, as prescribed by a doctor. Tablets should be swallowed whole with water.
If you miss a dose, take it as soon as you remember. If it's almost time for your next dose, skip the missed one. Do not double the dose to catch up.
Symptoms of overdose may include:
Emergency Steps: Seek immediate medical attention. Call emergency services or go to the nearest hospital if an overdose is suspected.
Perphenazine acts by restoring the balance of certain natural substances in the brain, notably dopamine. Dopamine imbalance is associated with symptoms of schizophrenia and other psychotic disorders.
Perphenazine works by affecting the brain s chemical messengers, mainly dopamine. It blocks dopamine receptors in the brain, helping to reduce symptoms like hallucinations, delusions, and severe agitation seen in psychotic conditions such as schizophrenia.
This action helps calm overactive brain signals without directly affecting hormones. Instead, it acts on the nervous system to restore chemical balance, improving mood, behaviour, and mental clarity in patients.
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Get Second OpinionPerphenazine side effects occur due to its dopamine-blocking action in the brain. This can lead to drowsiness, dry mouth, constipation, blurred vision, and movement disorders like tremors or stiffness, especially with long-term or high-dose use.
Before taking Perphenazine, inform your doctor about any allergies, current medications, and medical conditions, especially:
Perphenazine can interact with several medications and substances, affecting how it works or increasing side effects:
Store Perphenazine at room temperature, away from heat, light, and moisture. Keep it out of reach of children.
Perphenazine is an effective antipsychotic medication used to manage schizophrenia and related psychiatric conditions. It helps patients think more clearly, reduce aggression, and improve daily functioning. It is crucial to follow your doctor's instructions regarding dosage and report any unusual symptoms or side effects promptly.
If you have any concerns or experience adverse effects while taking Perphenazine, consult your healthcare provider for guidance and appropriate management.
If Perphenazine is not stored as recommended, it may degrade and become less effective or unsafe to use. Always check expiry dates and packaging for damage before use.

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040-68334455Perphenazine is branded under names such as Trilafon, Etrafon (or Triavil/Triptafen when combined with amitriptyline), and Decentan in Europe.
Perphenazine has a broad spectrum of efficacy and can be effective in treating various levels of anxiety and agitation, from moderate stress or hyperactivity to severe psychosis or psychomotor agitation.
Perphenazine should be taken orally, usually with or without food, as prescribed by your doctor. Typically, it is taken 1-3 times daily, depending on your medical condition and response to therapy.
Common side effects of perphenazine include drowsiness, constipation, dry mouth, dizziness, blurred vision, fatigue, and unexplained weight gain.
Common side effects of perphenazine may include pale skin, dry mouth, excessive saliva production, stuffy nose, headache, and nausea. If you experience severe side effects, contact your doctor.
Disclaimer: The information provided is accurate and up-to-date to the best of our knowledge. However, it should not be considered a substitute for medical advice or consultation. We do not guarantee its completeness or accuracy. The absence of specific warnings does not mean a medicine is safe for all users. We are not responsible for any outcomes based on this information and strongly recommend consulting a doctor for any medical concerns or questions.