ZENOXA 150

# Oxcarbazepine 150 mg ## SHORT DESCRIPTION Oxcarbazepine 150 mg is an **antiepileptic (anticonvulsant) medicine** used primarily to control certain types of seizures, particularly **focal-onset seizures**. It may be used alone or together with other seizure medicines, depending on the patient's condition. Oxcarbazepine requires medical supervision because it can cause **low blood sodium (hyponatremia)**, allergic reactions and other neurological or dermatological adverse effects. ## KEY BENEFITS * Helps control **focal-onset seizures** * Reduces abnormal electrical activity in the brain * May be used alone or as add-on therapy for epilepsy * Helps reduce seizure frequency when taken regularly * Available in different strengths for individualized dosing * May provide long-term seizure control when appropriately prescribed ## USES / INDICATIONS Oxcarbazepine 150 mg may be prescribed for: * **Focal-onset seizures** * Partial seizures with or without secondary generalization * Epilepsy requiring single-drug therapy * Epilepsy requiring combination treatment with other anticonvulsants The exact use and dosing depend on the patient's age, seizure type, medical condition and response to treatment. ## HOW IT WORKS Oxcarbazepine is converted in the body to its active metabolite, **10-monohydroxy derivative (MHD)**. MHD primarily blocks **voltage-sensitive sodium channels** in nerve cells. This stabilizes overactive neuronal membranes and reduces the spread of abnormal electrical activity in the brain, helping prevent seizures. ## DOSAGE & ADMINISTRATION * Take Oxcarbazepine 150 mg exactly as prescribed. * The starting dose is often lower than the eventual maintenance dose, with gradual dose adjustments based on response and tolerability. * It can generally be taken **with or without food**. * Take doses at evenly spaced times each day. * Swallow tablets with water unless your specific formulation has different instructions. * Do not change the dose or stop treatment suddenly without medical advice. * Your doctor may gradually increase or decrease the dose to reduce adverse effects and maintain seizure control. ### Missed Dose Take the missed dose when remembered unless it is nearly time for the next dose. Do not take two doses together. ## SIDE EFFECTS Common side effects may include: * Dizziness * Drowsiness * Headache * Fatigue * Nausea * Vomiting * Double vision * Blurred vision * Difficulty with coordination * Tremor * Abdominal discomfort ### Serious Side Effects Seek immediate medical attention if you develop: * Severe skin rash * Blistering or peeling skin * Swelling of the face, lips or throat * Difficulty breathing * Severe weakness or confusion * Severe headache associated with nausea or confusion * Fainting * Significant changes in heart rhythm * Unusual bruising or bleeding A particularly important adverse effect is **hyponatremia (low blood sodium)**, which can sometimes be serious. ## PRECAUTIONS & WARNINGS * Oxcarbazepine can cause **hyponatremia**, particularly during the first few months of treatment or in people taking medicines that also lower sodium. * Symptoms of low sodium can include nausea, headache, lethargy, confusion, worsening seizures or reduced consciousness. * Blood sodium levels may need monitoring in people at increased risk. * Oxcarbazepine can cause dizziness, drowsiness and coordination problems. Avoid driving until you know how it affects you. * Serious skin reactions, including **Stevens-Johnson syndrome and toxic epidermal necrolysis**, can rarely occur. * Tell your doctor if you have previously experienced serious skin reactions to carbamazepine or other anticonvulsants. * Some people of certain Asian ancestries may have an increased risk of serious skin reactions associated with the **HLA-B*1502** genetic variant. Genetic testing may be considered in appropriate patients. * Tell your doctor if you have **kidney disease**, as dose adjustment may be necessary. * Oxcarbazepine can interact with hormonal contraceptives and may reduce their effectiveness. * Do not stop oxcarbazepine suddenly, particularly if it is being used to control seizures. * Tell your doctor if you are pregnant, planning pregnancy or breastfeeding. ## DRUG INTERACTIONS Oxcarbazepine can interact with several medicines, including: * **Hormonal contraceptives** — oxcarbazepine can reduce the effectiveness of hormonal birth control. * **Carbamazepine** — may affect oxcarbazepine/MHD concentrations and increase adverse effects in some patients. * **Phenytoin** — oxcarbazepine may alter phenytoin concentrations. * **Phenobarbital** — concentrations may be affected when used together. * **Lamotrigine** — combined treatment may require monitoring and dose adjustment. * **Valproic acid** — interaction may occur and clinical monitoring may be necessary. * Other medicines that lower sodium may increase the risk of **hyponatremia**. * Other medicines that cause drowsiness may increase sedation and impaired coordination. Always tell your doctor or pharmacist about all prescription medicines, over-the-counter medicines, vitamins and herbal supplements you take. ## STORAGE INFORMATION * Store according to the manufacturer's instructions. * Keep the tablets in their original packaging. * Store at the recommended room temperature. * Protect from excessive heat, moisture and direct sunlight. * Keep the container tightly closed. * Keep out of reach of children. * Do not use after the expiry date. * Do not use the medicine if the packaging is damaged. ## PRESCRIPTION STATUS **Prescription medicine.** Oxcarbazepine 150 mg should be used only under the supervision of a qualified healthcare professional. The dose requires individual adjustment according to seizure control and tolerability. ## GENUINE MEDICINE ASSURANCE For safe and genuine Oxcarbazepine 150 mg: * Purchase from a licensed and reputable pharmacy. * Check the medicine name and strength. * Verify the manufacturer's details. * Check the batch number and expiry date. * Ensure the packaging and seal are intact. * Avoid products with damaged or suspicious packaging. * Do not use expired medicine. * Do not purchase prescription medicines from unauthorized sources. * Consult a pharmacist if you have concerns about product authenticity. ## FAQ ### What is Oxcarbazepine 150 mg used for? Oxcarbazepine 150 mg is an anticonvulsant primarily used to treat **focal-onset seizures** in people with epilepsy. ### Is Oxcarbazepine an anticonvulsant? Yes. Oxcarbazepine is an **antiepileptic or anticonvulsant medicine**. ### How does Oxcarbazepine work? Its active metabolite blocks voltage-sensitive sodium channels, helping stabilize nerve cells and reduce abnormal electrical activity responsible for seizures. ### Is Oxcarbazepine used for partial seizures? Yes. Oxcarbazepine is commonly used for **focal or partial-onset seizures**. ### Is Oxcarbazepine 150 mg a starting dose? It can be used as a starting strength in some treatment regimens, but the appropriate starting dose varies according to age, kidney function, seizure type and whether other anticonvulsants are being used. ### Can Oxcarbazepine be taken with food? Yes. Oxcarbazepine tablets can generally be taken **with or without food**. Take it consistently in the manner recommended by your healthcare professional. ### What are the common side effects of Oxcarbazepine? Common side effects include **dizziness, drowsiness, headache, fatigue, nausea, vomiting, double vision and coordination problems**. ### Can Oxcarbazepine cause low sodium? Yes. **Hyponatremia** is an important adverse effect of oxcarbazepine. Severe cases can cause confusion, worsening seizures or reduced consciousness. ### What are the symptoms of low sodium from Oxcarbazepine? Possible symptoms include **headache, nausea, unusual tiredness, confusion, weakness, worsening seizures or changes in consciousness**. Contact your doctor promptly if these occur. ### Does Oxcarbazepine cause dizziness? Yes. Dizziness is one of the more common side effects. Avoid driving or operating machinery until you know how the medicine affects you. ### Can Oxcarbazepine cause a skin rash? Yes. Skin rashes can occur, and rarely they may become severe. A rash accompanied by blistering, peeling skin, fever or swelling requires urgent medical evaluation. ### Can Oxcarbazepine affect birth control? Yes. Oxcarbazepine can **reduce the effectiveness of hormonal contraceptives**. Discuss alternative or additional contraception with your healthcare professional. ### Can Oxcarbazepine be taken during pregnancy? Pregnancy requires careful medical management because uncontrolled seizures can also pose risks. If you are pregnant or planning pregnancy, discuss oxcarbazepine treatment with your neurologist or obstetrician. **Do not stop it suddenly.** ### Can Oxcarbazepine be used while breastfeeding? Oxcarbazepine may be used in some breastfeeding patients under medical supervision. Discuss the potential benefits and risks with your healthcare professional. ### Can Oxcarbazepine be taken with Carbamazepine? The two medicines can interact and may increase adverse effects or alter drug concentrations. Combination therapy should only be managed by a healthcare professional. ### Can Oxcarbazepine be taken with Valproic Acid? They may be prescribed together in selected patients, but monitoring and dose adjustments may be required. ### Can Oxcarbazepine be taken with other seizure medicines? Yes. It may be used alone or as **add-on therapy**, but combinations can affect drug levels and side effects. Your doctor should manage the combination. ### Can I stop Oxcarbazepine suddenly? No. Abruptly stopping an anticonvulsant can cause seizures to become more frequent or severe. Your doctor will generally reduce the dose gradually when discontinuation is appropriate. ### What should I do if I miss an Oxcarbazepine dose? Take it when you remember unless it is nearly time for the next dose. Do not take a double dose. ### What happens if I take too much Oxcarbazepine? An overdose may cause severe dizziness, drowsiness, nausea, vomiting, coordination problems or reduced consciousness. Seek urgent medical attention if an overdose is suspected. ### How long does Oxcarbazepine take to work? The medicine begins affecting neuronal activity after administration, but achieving effective seizure control may require dose adjustment over time. Follow your prescribed treatment schedule. ### How should Oxcarbazepine 150 mg be stored? Store according to the manufacturer's instructions, generally at room temperature away from excessive heat and moisture. Keep it in its original packaging and out of reach of children. ## MEDICAL DISCLAIMER This information is provided for educational and informational purposes only and does not replace professional medical advice, diagnosis or treatment. **Oxcarbazepine 150 mg is a prescription anticonvulsant that requires individualized dosing and monitoring.** It can cause serious adverse effects, particularly low blood sodium and severe skin reactions. Do not stop treatment abruptly or change the dose without medical advice. Inform your healthcare professional about all medicines you take, especially hormonal contraceptives and other anticonvulsants. Seek urgent medical attention for severe rash, facial swelling, breathing difficulty, severe confusion, loss of consciousness or worsening seizures. Always follow the specific product label and your healthcare professional's instructions.