Flupentixol Tablets: Uses, Dosage & Side Effects
Complete guide to flupentixol tablets: usage, dosage, side effects, and important safety information.

What is Flupentixol?
Flupentixol is a prescription medication belonging to a class of drugs known as antipsychotics or neuroleptics. The brand names for flupentixol tablets include Depixol and Fluanxol. This medication is primarily used to treat psychiatric and mood disorders in adult patients. Flupentixol works by affecting chemicals in the brain that influence thoughts, mood, and behavior, helping to stabilize mental health conditions and reduce distressing symptoms.
What is Flupentixol Used For?
Flupentixol serves multiple therapeutic purposes in mental health treatment. The primary uses include:
- Depression: Flupentixol is commonly prescribed for depression, particularly when patients may also experience anxiety symptoms. It is especially useful in cases where traditional antidepressants may not be suitable or effective.
- Schizophrenia: The medication is indicated for maintenance therapy of chronic schizophrenic patients, particularly those whose main symptoms do not include excitement, agitation, or hyperactivity. It helps manage symptoms and reduces the risk of relapse.
- Anxiety: In lower doses, flupentixol may be used to manage anxiety symptoms, often in combination with depression treatment.
The choice to prescribe flupentixol depends on individual patient symptoms, medical history, and response to previous treatments. Your doctor will determine whether this medication is appropriate for your specific condition.
Before Taking Flupentixol
Before starting flupentixol treatment, it is essential to inform your doctor about your complete medical history and current health status. This ensures the medication is safe and appropriate for you.
Tell your doctor if you have or had any of the following conditions:
- Pregnancy or breastfeeding plans
- Heart conditions or blood vessel disease
- Liver, kidney, thyroid, or prostate problems
- Breathing difficulties
- Epilepsy or history of seizures
- Diabetes
- Parkinson’s disease
- Raised pressure in the eye (glaucoma)
- Myasthenia gravis (a condition causing muscle weakness)
- History of jaundice or blood disorders
- Irregular heart rhythms
- Family history of blood clots
- Risk factors for stroke (smoking, high blood pressure)
- Low potassium or magnesium levels in the blood
- History of cardiovascular disorders
Do not take flupentixol if you are:
- Allergic to flupentixol or any of its ingredients
- Allergic to thioxanthenes or phenothiazine-type medications
- Suffering from impaired consciousness due to alcohol or drug influence
- In a state of shock or coma
- Experiencing severe liver disease, kidney disease, or severe heart problems
How to Take Flupentixol
Before beginning treatment, read the manufacturer’s information leaflet that comes with your medication. It provides detailed information specific to your prescribed brand and a complete list of potential side effects.
Dosage Instructions:
Your dose will depend on the condition being treated. Take the tablets exactly as your doctor instructs. The typical dosage is once or twice daily, but individual doses vary based on your specific needs. The starting dose for tablet form is usually 0.5mg taken three times daily, with your doctor gradually increasing the dosage up to 3-5mg as needed.
Important Guidelines:
- Try to take your doses at the same times each day to avoid missing any doses
- Flupentixol tablets can be taken before or after food
- Although flupentixol may cause drowsiness, it can also have a stimulating effect in some people. Take doses during the day, preferably before 4 pm, rather than in the evening
- Never increase or decrease your dose unless your doctor tells you to do so
- Do not stop taking flupentixol even if you begin to feel better, unless your doctor instructs you to
Missed Dose:
If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose. In that case, leave out the missed dose and continue with your regular schedule. Never take two doses together to make up for a missed dose. As a general rule, if more than 6 hours remain before your next scheduled dose, take the missed dose immediately. If less than 6 hours remain, skip the missed dose and resume your normal schedule.
How Long Does Flupentixol Take to Work?
The onset of flupentixol’s effects varies depending on the form of administration. When taken as tablets, it may take up to two weeks before you start noticing the effects, and up to six months before negative symptoms fully subside. This is why it is important to continue taking the medication as prescribed even if you do not feel immediate improvements.
The half-life of flupentixol is approximately 35 hours in tablet form, meaning it takes about 35 hours for half of the dose to be eliminated from your body. This relatively long half-life allows for once or twice-daily dosing in most cases.
Possible Side Effects
Like all medications, flupentixol can cause side effects in some people. Not everyone experiences side effects, and their severity varies from person to person.
Common Side Effects:
- Drowsiness or sedation
- Restlessness or agitation
- Dizziness
- Trembling or shaking
- Muscle stiffness
- Dry mouth
- Difficulty sleeping (insomnia)
- Headache
- Nausea
- Sweating
- Weight gain
Rare but Serious Side Effects:
Contact your doctor immediately if you experience symptoms such as muscle stiffness, a very high temperature, feeling confused, a fast heartbeat, and sweating. These may be signs of a rare but serious condition known as neuroleptic malignant syndrome (NMS), which requires immediate medical attention.
Other serious side effects that warrant immediate medical consultation include:
- Severe allergic reactions (rash, difficulty breathing, swelling of face or throat)
- Significant changes in heart rhythm
- Signs of liver problems (yellowing of skin or eyes)
- Severe dizziness or fainting
- Vision problems
- Uncontrolled movements
If you experience any symptoms that you believe may be related to this medication, speak with your doctor or pharmacist promptly.
Drug Interactions
Flupentixol can interact with various other medications. Inform your doctor about all medications, supplements, and herbal products you are taking. Significant interactions may occur with:
- Medications that affect heart rhythm
- Certain antidepressants
- Anticonvulsants
- Blood pressure medications
- Certain antihistamines
- Medications containing lithium
Your doctor or pharmacist can help identify potential interactions and adjust your treatment plan accordingly.
Special Considerations
Pregnancy and Breastfeeding:
If you are pregnant or planning to become pregnant, discuss this with your doctor before taking flupentixol. The benefits and risks must be carefully weighed. Similarly, if you are breastfeeding, inform your doctor as flupentixol may pass into breast milk.
Alcohol:
Avoid alcohol while taking flupentixol, as it can increase drowsiness and impair judgment. If you regularly drink significant amounts of alcohol, inform your doctor.
Driving and Operating Machinery:
Flupentixol may cause drowsiness or dizziness. Do not drive or operate machinery until you know how the medication affects you.
Overdose:
In case of overdose, contact your doctor or nearest hospital immediately. Symptoms of overdose may include low blood pressure, weak pulse, fast heart rate, paleness, restlessness, abnormal body temperature, and changes in heart rhythm. Symptomatic treatment should be initiated with airway management.
Storage and Disposal
Store flupentixol tablets at room temperature away from moisture, heat, and light. Keep the medication in its original container with the label intact. Store out of reach of children and pets. Do not use flupentixol after the expiration date printed on the package. Dispose of unused or expired medication according to local pharmacy guidelines or take it to a pharmacy for proper disposal.
Key Advantages of Flupentixol Treatment
- Effective for both schizophrenia maintenance and depression treatment
- Available in tablet form for convenient daily administration
- Long half-life allows for once or twice-daily dosing
- Generally well-tolerated by most patients when properly monitored
- Can be combined with other treatments for enhanced effectiveness
- Flexible dosing options allow for individualized treatment plans
Frequently Asked Questions (FAQs)
Q: How long does it take for flupentixol to work?
A: When taken as tablets, flupentixol may take two weeks to show initial effects and up to six months for full symptom improvement, particularly for negative symptoms of schizophrenia. Consistency with taking the medication as prescribed is important.
Q: Can I stop taking flupentixol suddenly?
A: No, you should not stop taking flupentixol suddenly without consulting your doctor. Abrupt discontinuation can lead to relapse of symptoms. Your doctor will provide guidance on how to gradually discontinue the medication if needed.
Q: Is flupentixol addictive?
A: Flupentixol is not considered addictive in the traditional sense. However, it is important to continue taking it as prescribed to maintain symptom control and prevent relapse.
Q: Can I take flupentixol with other medications?
A: Flupentixol may interact with other medications. Always inform your doctor about all medications, supplements, and herbal products you are taking. Your doctor can assess potential interactions and adjust your treatment accordingly.
Q: What should I do if I experience side effects?
A: Contact your doctor if you experience bothersome side effects. Do not stop taking the medication without medical guidance. Your doctor may adjust your dose or recommend ways to manage side effects.
Q: Is flupentixol safe during pregnancy?
A: The safety of flupentixol during pregnancy requires careful consideration of risks and benefits. Discuss your pregnancy plans or current pregnancy with your doctor to determine the best treatment approach for your situation.
When to Contact Your Doctor
Contact your doctor or seek medical attention if you experience:
- Signs of neuroleptic malignant syndrome (muscle stiffness, high temperature, confusion, fast heartbeat, sweating)
- Severe allergic reactions
- Significant changes in mood or behavior
- Persistent or worsening side effects
- Signs of liver problems (yellowing of skin or eyes)
- Difficulty breathing or chest pain
- Fainting or severe dizziness
- Any symptoms you believe may be related to the medication
Conclusion
Flupentixol tablets are an effective medication for treating depression and schizophrenia when used as prescribed. Success with this medication requires consistent adherence to your prescribed dosage, open communication with your healthcare provider about any concerns or side effects, and regular monitoring of your mental and physical health. By understanding how to take flupentixol properly, what side effects to expect, and when to seek medical attention, you can optimize your treatment outcomes and support your mental health recovery.
References
- Fluanxol Patient Information — Lundbeck. 2025. https://www.lundbeck.com/content/dam/lundbeck-com/americas/canada/products/files/fluanxol_patient_information_english.pdf
- Flupenthixol – Uses, Dosage, Side Effects — MentalHealth.com. 2025. https://www.mentalhealth.com/library/flupenthixol-uses-dosage-side-effects
- Flupentixol Tablets – Depixol, Fluanxol — Patient.info. 2025. https://patient.info/medicine/flupentixol-tablets-depixol-fluanxol
- Flupentixol: Uses, Interactions, Mechanism of Action — DrugBank. 2025. https://go.drugbank.com/drugs/DB00875
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