MEGAZIN-100

# Chlorpromazine 100 mg ## Short Description **Chlorpromazine 100 mg** is a prescription medicine belonging to the **phenothiazine antipsychotic** class. It affects several chemical messengers in the brain, particularly dopamine, and is used for certain psychiatric and neurological conditions. Depending on the clinical situation, chlorpromazine may be prescribed for **schizophrenia and other psychotic disorders, severe behavioral disturbance, mania, persistent hiccups, and severe nausea or vomiting**. The appropriate dose varies considerably by indication and patient. > **Important:** Chlorpromazine can cause significant drowsiness, low blood pressure, movement disorders and other serious adverse effects. It should be used only under appropriate medical supervision. --- ## Key Benefits * Helps reduce **psychotic symptoms** such as hallucinations and delusions. * May help control severe agitation or behavioral disturbance in selected patients. * Can be used as part of treatment for certain **schizophrenia-spectrum and psychotic disorders**. * May be prescribed for **mania** in specific clinical circumstances. * Has antiemetic properties and may be used for **severe nausea and vomiting** in selected situations. * Can be used for **persistent/intractable hiccups** when other measures are unsuccessful. * Its multiple pharmacological actions allow it to be used for certain conditions beyond psychotic disorders. --- ## Uses / Indications Chlorpromazine may be prescribed for: ### Psychiatric Conditions * **Schizophrenia** * Other psychotic disorders * Severe agitation or behavioral disturbance associated with certain psychiatric conditions * **Mania**, when clinically appropriate ### Other Medical Uses * **Severe nausea and vomiting** * **Persistent/intractable hiccups** * Certain other conditions where chlorpromazine's effects are specifically indicated by a healthcare professional The approved uses and dosing recommendations can differ between countries and product formulations. --- ## How It Works Chlorpromazine primarily works by **blocking dopamine D2 receptors** in the brain. Excessive dopamine activity in certain brain pathways is associated with psychotic symptoms. By reducing dopamine signaling, chlorpromazine can help decrease hallucinations, delusions and severe behavioral disturbances. It also affects several other receptors, including: * **Histamine receptors** — contributes to sedation * **Alpha-adrenergic receptors** — can cause low blood pressure * **Muscarinic receptors** — contributes to dry mouth, constipation and blurred vision * **Serotonin receptors** — contributes to some of its pharmacological effects ### In simple terms: **Chlorpromazine → reduces excessive dopamine signaling → helps control psychotic and behavioral symptoms.** Its effects on multiple neurotransmitter systems also explain many of its side effects. --- ## Dosage & Administration **Chlorpromazine 100 mg is a tablet strength, not a universal dose.** The appropriate dose depends on the condition being treated, age, response to treatment and other medical factors. ### Adults The dose varies substantially depending on the indication. Treatment is generally started at an appropriate dose and **gradually adjusted according to clinical response and tolerability**. For some psychiatric conditions, divided daily doses may be used. Lower doses may be appropriate for other indications such as nausea, vomiting or hiccups. ### Administration * Take exactly as prescribed. * It may generally be taken **with or without food**. * Taking it at the same time each day can help maintain consistent dosing. * Swallow tablets with water. * Do not stop treatment suddenly without medical advice, particularly after prolonged use. * Avoid driving or operating machinery until you know how the medicine affects you. ### Missed Dose Take the missed dose when remembered unless it is nearly time for the next scheduled dose. **Do not take two doses together** to compensate for a missed dose. ### Important Dose adjustments may be necessary in **older adults and patients with liver, cardiovascular or other significant medical conditions**. --- ## Side Effects ### Common Side Effects Possible side effects include: * Drowsiness * Dizziness * Dry mouth * Constipation * Blurred vision * Difficulty urinating * Fatigue * Increased appetite * Weight gain * Low blood pressure, particularly when standing * Increased sweating * Nasal congestion ### Movement-Related Side Effects Chlorpromazine can cause extrapyramidal symptoms, including: * Muscle stiffness * Tremor * Restlessness * Abnormal movements * Muscle spasms * Slowed movement Long-term treatment can rarely cause **tardive dyskinesia**, involving potentially persistent involuntary movements. ### Serious Side Effects Seek urgent medical attention for: * Severe muscle rigidity, high fever, confusion or altered consciousness * Fainting or severe dizziness * Abnormal or irregular heartbeat * Seizures * Severe allergic reaction * Yellowing of the skin or eyes * Unexplained infection or persistent sore throat * Severe involuntary movements * Difficulty swallowing or breathing A rare but potentially life-threatening reaction called **neuroleptic malignant syndrome (NMS)** can occur with antipsychotic medicines and requires emergency treatment. --- ## Precautions & Warnings ### Drowsiness and Reduced Alertness Chlorpromazine can cause significant sedation and dizziness. * Avoid driving until you know its effects. * Avoid operating machinery if drowsy or impaired. * Alcohol can substantially increase sedation. ### Low Blood Pressure Chlorpromazine can cause **orthostatic hypotension**, particularly when starting treatment or increasing the dose. Rise slowly from sitting or lying positions. ### Heart Rhythm Chlorpromazine may prolong the **QT interval** and increase the risk of serious cardiac arrhythmias in susceptible patients. Tell your doctor if you have: * Heart disease * A history of abnormal heart rhythm * Fainting episodes * Low potassium or magnesium * A family history of sudden cardiac death ### Movement Disorders Long-term use can cause tardive dyskinesia and other movement disorders. Report unusual involuntary movements to your healthcare professional. ### Neuroleptic Malignant Syndrome Seek emergency medical care for **high fever, severe muscle stiffness, confusion, sweating or rapidly changing heart rate/blood pressure**. ### Blood Disorders Rarely, chlorpromazine can cause serious blood abnormalities. Seek medical attention for unexplained fever, sore throat or signs of infection. ### Liver Problems Chlorpromazine can rarely cause liver injury or cholestatic jaundice. Report yellowing of the skin or eyes, dark urine or unusual abdominal symptoms. ### Older Adults Older adults, particularly those with dementia-related psychosis, require special caution. Antipsychotics have been associated with an increased risk of death in elderly patients with **dementia-related psychosis** and are not approved for this use. --- ## Drug Interactions Chlorpromazine can interact with many medicines. Important examples include: ### Medicines That Cause Drowsiness * Opioid pain medicines * Sedative medicines * Sleeping tablets * Benzodiazepines * Certain antihistamines * Other antipsychotics Combining these medicines may increase **sedation and impairment**. ### Medicines Affecting Heart Rhythm Use caution with other medicines that can **prolong the QT interval**, as the combination may increase the risk of dangerous arrhythmias. ### Blood Pressure Medicines Chlorpromazine may enhance the blood-pressure-lowering effects of: * Antihypertensive medicines * Some alpha-blockers * Other medicines that lower blood pressure ### Anticholinergic Medicines Combining chlorpromazine with other anticholinergic drugs may increase: * Dry mouth * Constipation * Blurred vision * Difficulty urinating * Confusion ### Dopaminergic Medicines Chlorpromazine can oppose the effects of certain **dopaminergic medicines**, including some medicines used to treat Parkinson's disease. ### Antacids Some antacids may affect absorption of certain phenothiazine preparations. Follow the product-specific instructions and ask your pharmacist if you take antacids regularly. **Always provide your doctor or pharmacist with a complete list of prescription medicines, OTC medicines, vitamins and herbal supplements.** --- ## Storage Information * Store chlorpromazine tablets at **room temperature** according to the manufacturer's instructions. * Protect from excessive heat, moisture and direct sunlight. * Keep the medicine in its original packaging. * Keep out of reach of children. * Do not use after the expiry date. * Do not use tablets that appear damaged or significantly changed in appearance. --- ## Prescription Status **Chlorpromazine 100 mg is a prescription-only medicine.** Because of its potentially serious neurological, cardiovascular and metabolic adverse effects, chlorpromazine should be used under the supervision of a qualified healthcare professional. Do not start, stop or change the dose without medical advice. --- ## Genuine Medicine Assurance When purchasing **Chlorpromazine 100 mg**: * Purchase only from a **licensed and reputable pharmacy**. * Check that the packaging is intact and properly sealed. * Verify the **medicine name, strength, manufacturer, batch/lot number and expiry date**. * Ensure the tablets match the description provided by the manufacturer. * Do not use tablets from damaged, unlabelled or suspicious packaging. * Avoid purchasing prescription medicines from unauthorized sellers. * For suspected counterfeit products, contact the manufacturer, licensed pharmacy or relevant medicines regulatory authority. --- # Frequently Asked Questions (FAQ) ### 1. What is Chlorpromazine 100 mg used for? Chlorpromazine 100 mg may be used to treat **schizophrenia and other psychotic disorders** and, in selected situations, severe agitation, mania, severe nausea and vomiting, or persistent hiccups. ### 2. Is Chlorpromazine an antipsychotic? Yes. Chlorpromazine is a **first-generation (typical) antipsychotic** belonging to the phenothiazine class. ### 3. How does Chlorpromazine work? It primarily blocks **dopamine D2 receptors** in the brain, reducing excessive dopamine activity associated with psychotic symptoms. It also affects histamine, muscarinic and alpha-adrenergic receptors. ### 4. Is Chlorpromazine 100 mg a strong medicine? Chlorpromazine is a **potent prescription medicine**, but the meaning of "strong" depends on the condition being treated and the individual's response. A 100 mg tablet is simply one available strength and does not mean every patient should take 100 mg. ### 5. Can Chlorpromazine make you sleepy? Yes. **Drowsiness and sedation are common**, particularly when starting treatment or increasing the dose. ### 6. Can I drink alcohol while taking Chlorpromazine? It is generally recommended to **avoid alcohol** because alcohol can increase chlorpromazine-related drowsiness, dizziness, impaired coordination and low blood pressure. ### 7. Can Chlorpromazine be used for anxiety? Chlorpromazine is **not normally a first-line treatment for ordinary anxiety**. It is primarily used for specific psychiatric and medical indications determined by a healthcare professional. ### 8. Can Chlorpromazine treat schizophrenia? Yes. Chlorpromazine is an established antipsychotic treatment for **schizophrenia and certain other psychotic disorders**. ### 9. Can Chlorpromazine be used for nausea and vomiting? Yes. Chlorpromazine has antiemetic properties and may be prescribed for **severe nausea and vomiting** in selected circumstances. ### 10. Can Chlorpromazine stop hiccups? Yes. Chlorpromazine is one of the medicines that may be prescribed for **persistent or intractable hiccups**, particularly when simpler treatments have not worked. ### 11. Does Chlorpromazine cause weight gain? It can. Chlorpromazine may increase appetite and contribute to **weight gain and metabolic changes**, particularly during longer-term treatment. ### 12. Can Chlorpromazine cause low blood pressure? Yes. It can cause **orthostatic hypotension**, resulting in dizziness or fainting when standing up. Rising slowly can help reduce this effect. ### 13. Can Chlorpromazine cause movement problems? Yes. It can cause extrapyramidal symptoms such as stiffness, tremor, restlessness and abnormal movements. Long-term use can also rarely cause **tardive dyskinesia**. ### 14. Can I stop Chlorpromazine suddenly? Do not stop chlorpromazine suddenly without medical advice. Abrupt discontinuation can cause withdrawal-related symptoms or recurrence of the condition being treated. ### 15. What are the serious side effects of Chlorpromazine? Serious effects can include **neuroleptic malignant syndrome, severe movement disorders, heart rhythm abnormalities, seizures, severe allergic reactions, blood disorders and liver injury**. ### 16. Can Chlorpromazine affect the heart? Yes. Chlorpromazine can affect cardiac conduction and may **prolong the QT interval**, potentially increasing the risk of serious abnormal heart rhythms in susceptible individuals. ### 17. Is Chlorpromazine safe during pregnancy? Pregnancy should be discussed with a healthcare professional before using chlorpromazine. The medicine should be used during pregnancy only when the potential benefits justify the potential risks. ### 18. Can Chlorpromazine be taken while breastfeeding? Chlorpromazine can pass into breast milk. Discuss breastfeeding with your healthcare professional before taking it, particularly if regular or high-dose treatment is required. ### 19. What should I do if I miss a Chlorpromazine dose? Take it when you remember unless it is nearly time for your next dose. **Do not double the dose.** If you frequently miss doses, discuss this with your healthcare professional. ### 20. Does Chlorpromazine cure schizophrenia? Chlorpromazine can **control symptoms and help prevent relapse**, but it is not generally considered a cure for schizophrenia. Long-term treatment plans should be determined with a mental-health professional. --- ## Medical Disclaimer This information about **Chlorpromazine 100 mg** is provided for educational and general informational purposes only. It is **not a substitute for professional medical advice, diagnosis or treatment**. Chlorpromazine is a prescription antipsychotic medicine with potentially serious neurological, cardiovascular and other adverse effects. The appropriate dose and duration depend on the patient's diagnosis, age, medical history, other medicines and response to treatment. **Do not start, stop or change chlorpromazine treatment without consulting a qualified healthcare professional.** Seek urgent medical attention for severe muscle stiffness with fever, fainting, seizures, severe allergic reactions, abnormal heartbeats, severe involuntary movements or other serious symptoms.