Oxcarbazepine CAS NO 28721-07-5 Inquire about Oxcarbazepine
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What is Oxcarbazepine?![Oxcarbazepine](https://tecoland.com/wp-content/uploads/2015/04/Oxcarbazepine-300x208.png)
Oxcarbazepine is an anticonvulsant and mood stabilizing drug, used primarily in the treatment of epilepsy. It is also used to treat anxiety and mood disorders, and benign motor tics. Oxcarbazepine is marketed as Trileptal by Novartis and available in some countries as a generic drug.
Oxcarbazepine is structurally a derivative of carbamazepine, adding an extra oxygen atom to the benzylcarboxamide group. This difference helps reduce the impact on the liver of metabolizing the drug, and also prevents the serious forms of anemia occasionally associated with carbamazepine. Aside from this reduction in side effects, it is thought to have the same mechanism as carbamazepine-sodium channel inhibition-and is generally used to treat partial seizures in epileptic children and adults.
Uses
Oxcarbazepine is used in treatment of epilepsy, oxcarbazepine has recently been found to be associated with a greater enhancement in mood and reduction in anxiety symptoms than other drugs employed to treat epilepsy.
It also appears to be effective in approximately half of patients with bipolar disorder and is well tolerated.
What is the mechanism of action?
The exact mechanism by which oxcarbazepine exerts its anticonvulsant effect is unknown. It is known that the pharmacological activity of oxcarbazepine occurs primarily through its 10-monohydroxy metabolite (MHD). In vitro studies indicate an MHD-induced blockade of voltage-sensitive sodium channels, resulting in stabilization of hyperexcited neuronal membranes, inhibition of repetitive neuronal discharges, and diminution of propagation of synaptic impulses.
Toxicity
Isolated cases of overdose with oxcarbazepine have been reported. The maximum dose taken was approximately 24,000 mg. All patients recovered with symptomatic treatment.
How to dose Oxcarbazepine?
Oxcarbazepine comes as a tablet and a suspension (liquid) to take by mouth. It is usually taken every 12 hours (twice a day) with or without food. Take oxcarbazepine at around the same times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take oxcarbazepine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Shake the suspension well right before each use to mix the medication evenly. Use the oral dosing syringe that came with the medication to withdraw the right amount of suspension from the bottle. You can swallow the suspension straight from the syringe or you can mix it with a small glass of water and swallow the mixture. Wash the syringe with warm water and allow it to dry thoroughly after use.
What are the side effects of Oxcarbazepine?
Oxcarbazepine can cause dizziness, drowsiness, blurred or double vision, fatigue and may cause headaches, nausea, and vomiting. There is also evidence of difficulty in concentration and mental sluggishness. It can also cause hyponatremia (2.7% of patients), so blood sodium levels should be tested if the patient complains of severe fatigue.
Some of these side effects (such as headache) are more pronounced shortly after a dose is taken and tend to fade with the passage of time (generally 60 to 90 minutes). A craving for salty foods (such as potato chips) and increased impulsiveness have also been noted.
Other side effects include stomach pain; tremor; rash; diarrhea, constipation, decreased appetite; and dry mouth. Skin sensitivity to sunlight also may increase, and patients could experience severe sunburns as a result of sun exposure.
The frequency of adverse effects rises above a daily dosage of 1200 mg. Some patients reported a sensation of incontinence without cause after taking the drug.
Possible reproductive risks
Oxcarbazapine may cause oral hormonal contraceptives to be less effective.
Increased incidences of fetal structural abnormalities and other manifestations of developmental toxicity (embryolethality, growth retardation) were observed in the offspring of animals (rats and rabbits) treated with either oxcarbazepine or its active 10-hydroxy metabolite (MHD) during pregnancy at doses similar to the maximum recommended human dose.
There are no adequate and well-controlled clinical studies of oxcarbazepine in pregnant women; however, oxcarbazepine is closely related structurally to carbamazepine, which is considered to be teratogenic in humans. Given this fact, and the results of the animal studies described, it is likely that oxcarbazepine is a human teratogen. Oxcarbazepine should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Disclaimer:
Information on this page is provided for general information purposes. You should not make a clinical treatment decision based on information contained in this page without consulting other references including the package insert of the drug, textbooks and where relevant, expert opinion. We cannot be held responsible for any errors you make in administering drugs mentioned on this page, nor for use of any erroneous information contained on this page.