Oxcarbazepine 150 mg is a Selective serotonin reuptake inhibitor (SSRI) antidepressant used for depression, anxiety, and sometimes panic attacks, obsessive-compulsive disorder (OCD), or social anxiety. It works by stopping the brain from quickly reabsorbing the lost serotonin from its nerve ending to make an individual stay happy, improve mood, and reduce anxiety. Common side effects include nausea, headache, sleep changes, dry mouth, and sexual difficulties. It can be taken with or without food, but alcohol may increase drowsiness, and grapefruit juice is best avoided. Store at room temperature, away from heat, moisture, and children.

Oxcarbazepine 150 mg is used for the following indications:

1. Partial Seizures
2. Epilepsy

More Common  

1. Dizziness and sleepiness   
2. Changes in vision, including blurred or double vision  
3. Feeling unusually weak or tired 
4. Nausea and vomiting 
5. Trouble with balance or coordination  
6. Headache 
7. Uncontrollable eye movements 
8. Tremor 
9. Irregular or unusual walking pattern 

Less Common 

1. Cause reduced sodium levels in the body. 
2. Severe allergic and skin reactions 
3. Suicidal thoughts 
4. Headache 
5. Drowsiness 
6. Muscle weakness or cramps 
7. Nausea, vomiting, or loss of appetite 
8. Tiredness or sleepiness 
9. Dizziness 
10. Weight gain 
11. Restlessness or irritability 
12. Change in your mental condition, such as hallucinations, confusion, decreased awareness, or alertness 

Oxcarbazepine 150 mg works by calming overexcited brain cells in epilepsy. Normally, these cells can become overloaded with electrical charge, like balloons filled with too much water—making them prone to bursting into seizures when triggered. Oxcarbazepine 150 mg blocks sodium channels, preventing excessive entry of charged ions into the brain cells. This stabilizes their activity, reduces the risk of sudden electrical surges, and helps prevent seizures and tremors.

Pregnancy and Breastfeeding

Oxcarbazepine 150 mg causes issues with the baby’s brain and spine development (neural tube defects) , so it is said to take the medication only after the doctor’s recommendation.

Kidney and Liver Problems

Patients suffering from kidney and liver problems are more prone to kidney and liver damage, as the medicine is converted into a less toxic form in the liver and excreted through the kidney. They may cause interactions and cause severe toxicity, so consult a doctor before using it.

Past Mental Health Issues

Oxcarbazepine 150 mg directly acts on the brain and causes multiple side effects like sedation, drowsiness, and suicidal thoughts. Inform the doctor about your past mental health issues before using Oxcarbazepine 150 mg.

Low sodium levels in the body

Patients with low sodium levels may experience low blood pressure and unconsciousness if they use this medicine. Consult the doctor if you have any issues related to blood pressure.

Avoid consuming alcohol and smoking simultaneously with this medication, as it may affect the drug’s action and show an effect on the brain, leading to severe drowsiness, sedation, and coma in severe cases.

Avoid taking Oxcarbazepine 150 mg with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

10,11-dihydro-10-oxo-5H-dibenz[b,f]azepine-5-carboxamide

Daily dose

Take Oxcarbazepine 150 mg exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.

Overdose

It is not recommended to take more than 2400 mg of Oxcarbazepine 150 mg per day, as it may cause severe adverse effects like extreme drowsiness, confusion, low BP, unconsciousness, and respiratory depression. If you know someone who takes this medication and has these symptoms, rush them to the hospital immediately.

1. Store the medicine at room temperature 
2. Keep away from sunlight and moisture 
3. Keep out of reach of children 

1. Take Oxcarbazepine 150 mgexactly as prescribed by your doctor, at the same time each day. 
2. Do not stop taking Oxcarbazepine 150 mgwithout your doctor’s approval, even if you feel better. 
3. If you forget to take Oxcarbazepine 150 mg, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose.

What are the side effects of Oxcarbazepine 150 mg? 

Oxcarbazepine 150 mg is used to treat epilepsy; its side effects include severe skin diseases, allergies, and low sodium levels in the body.

What is an Oxcarbazepine 150 mg overdose?

Taking more than 2400 mg of Oxcarbazepine 150 mg causes overdose and produces toxic effects like fall in BP, unconsciousness, and skin allergies.

What are Oxcarbazepine 150 mg drug interactions?

Oxcarbazepine 150 mg can reduce sodium levels and weaken hormonal contraceptives. It also interacts with phenytoin, carbamazepine, and CNS depressants.

Does Oxcarbazepine 150 mg cause hyponatremia?

Yes, Oxcarbazepine 150 mg causes hyponatremia, known as a fall in sodium levels in the body, and can cause severe low BP leading to fainting.

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2. WebMD. Oxcarbazepine (oral). 2024 Dec 20 [cited 2025 Jun 30]. Available from. 
3. Drugs.com. Oxcarbazepine. 2025 Apr 24 [cited 2025 Jun 30]. Available from. 
4. PubChem. Oxcarbazepine [Internet]. Bethesda (MD): National Library of Medicine (US); [updated 2025 Jun 28; cited 2025 Jun 30]. Available from.