What is Phenytoin Extended Release 300 mg?
Phenytoin Extended Release 300 mg is a prescription medication primarily used to manage and control certain types of seizures. It contains Phenytoin as its active ingredient, which belongs to the class of anticonvulsants. This extended-release formulation ensures the medicine is absorbed gradually, providing prolonged therapeutic effects throughout the day.
This medication is manufactured by Abbott India Pvt. Ltd., a renowned pharmaceutical company recognized for its high-quality drug formulations. The extended-release tablets are designed to maintain stable blood levels of phenytoin, helping in the consistent control of seizure activity.
Phenytoin Extended Release 300 mg is also indicated for the treatment of trigeminal neuralgia, a chronic pain condition affecting the trigeminal nerve in the face. The medication helps reduce nerve pain and improves quality of life for affected patients.
In Malaysia, this medicine is prescribed under medical supervision and is considered an essential treatment option for patients who require long-term seizure control or management of trigeminal neuralgia.
Uses of Phenytoin Extended Release 300 mg
- Control of generalized tonic-clonic seizures
- Management of complex partial seizures
- Treatment of trigeminal neuralgia (facial nerve pain)
How Phenytoin Extended Release 300 mg Works
Phenytoin works by stabilizing electrical activity in the brain. It reduces the excessive and abnormal nerve firing that causes seizures by slowing down the recovery of sodium channels in neurons. This action helps prevent the rapid spread of seizure impulses across the brain.
The extended release mechanism allows gradual absorption of phenytoin from the gastrointestinal tract, maintaining consistent drug levels in the bloodstream. This steady concentration reduces seizure frequency while minimizing side effects often seen with immediate-release formulations.
How to take Phenytoin Extended Release 300 mg
Always take Phenytoin Extended Release 300 mg exactly as prescribed by your healthcare provider. The tablets should be swallowed whole with a full glass of water. Do not crush, chew, or break the tablets as this interferes with the extended-release mechanism.
It is usually taken once or twice daily at regular intervals to maintain steady drug levels. Taking the medication with food may reduce stomach upset. Do not stop the medication abruptly without consulting your doctor, as this may trigger seizures.
Benefits of Phenytoin Extended Release 300 mg
- Long-lasting seizure control due to extended-release formulation
- Helps reduce nerve pain in trigeminal neuralgia
- Improves quality of life by minimizing seizure episodes
- Once or twice daily dosing for better compliance
- Clinically proven efficacy with well-established safety profile
Dosage and Administration
The typical adult dose of Phenytoin Extended Release 300 mg varies depending on the condition treated and individual patient factors. Commonly, the starting dose may be lower and gradually increased under medical supervision.
For seizure control, doctors adjust the dose to achieve optimal blood levels, commonly ranging from 300 mg to 400 mg per day divided into one or two doses. For trigeminal neuralgia, dosing is individualized based on response and tolerance.
Regular blood tests may be required to monitor phenytoin levels and prevent toxicity. Always follow your doctor's dosing instructions carefully.
Who Should Use Phenytoin Extended Release 300 mg?
This medication is suitable for adults diagnosed with seizure disorders such as tonic-clonic and complex partial seizures. It is also appropriate for patients experiencing trigeminal neuralgia pain who require anticonvulsant therapy.
Your healthcare provider will determine suitability based on your medical history, current health condition, and any other medications you may be taking.
Who Should Avoid Phenytoin Extended Release 300 mg?
Phenytoin Extended Release 300 mg is not recommended for individuals with a known allergy to phenytoin or any of its components. Patients with sinus bradycardia or certain heart conditions should avoid this medication unless advised otherwise by their doctor.
Use with caution or avoid if pregnant or breastfeeding unless specifically prescribed, due to potential risks. Inform your healthcare provider if you have liver or kidney disease.
Side Effects of Phenytoin Extended Release 300 mg
- Dizziness
- Headache
- Unsteady coordination
- Nausea
- Vomiting
- Gingival hyperplasia (gum swelling)
- Rash
- Blurred vision
- Fatigue
- Constipation
Safety Advice
- Inform your doctor of all medications you are currently taking to prevent interactions
- Avoid alcohol as it can increase side effects and reduce effectiveness
- Do not discontinue suddenly; tapering may be necessary to prevent seizure recurrence
- Report any rash or allergic reactions immediately
- Avoid operating heavy machinery if you experience dizziness or drowsiness
- Keep regular follow-up appointments for blood level monitoring
Drug Interactions
- Anticoagulants (e.g., warfarin)
- Other anticonvulsants (e.g., carbamazepine)
- Oral contraceptives
- Antidepressants
- Antifungal medications
- Certain antibiotics
Storage Instructions
Store Phenytoin Extended Release 300 mg tablets at room temperature away from excess heat and moisture. Keep the medication in its original container tightly closed and out of reach of children. Avoid storing in bathrooms or damp areas to maintain medication stability.
Where to buy Phenytoin Extended Release 300 mg in Malaysia?
Phenytoin Extended Release 300 mg can be purchased at licensed pharmacies in Malaysia with a valid prescription. Some trusted online pharmacies also offer this medicine for convenient home delivery. Always ensure you buy from reputable sources to guarantee product authenticity and safety.
Frequently Asked Questions (FAQ)
What is the price of Phenytoin Extended Release 300 mg in Malaysia?
The price varies by pharmacy and brand but remains affordable. Check with local pharmacies or online platforms for current pricing.
What happens if I miss a dose?
Take the missed dose as soon as you remember unless it is near the time for your next dose. Do not double up doses to compensate.
Where can I find Phenytoin Extended Release 300 mg for sale?
Available at registered pharmacies and some licensed online stores across Malaysia with a prescription.
Is Phenytoin Extended Release 300 mg available in Malaysia?
Yes, it is widely available through authorized pharmaceutical distributors and healthcare providers.
Can I drink alcohol while taking Phenytoin Extended Release 300 mg?
It is advisable to avoid alcohol as it can increase side effects and reduce the medication's effectiveness.
How long does it take for Phenytoin Extended Release 300 mg to work?
It may take several days to reach effective blood levels for seizure control, depending on dose and patient response.
Can I stop taking Phenytoin Extended Release 300 mg suddenly?
No, sudden discontinuation can cause seizures. Always consult your doctor before stopping.
Conclusion
Phenytoin Extended Release 300 mg is a trusted medication for managing seizures and trigeminal neuralgia effectively. Its extended-release formulation supports steady symptom control with convenient dosing. When used under medical guidance, it can significantly improve patient quality of life by reducing seizures and nerve pain symptoms. Always follow your healthcare provider's instructions for safe and effective use.
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