Dilantin ER (phenytoin extended-release) dosage depends heavily on individual factors and the specific condition being treated. Always follow your doctor’s instructions precisely. Never adjust your dosage without consulting your physician.
Factors Influencing Dosage
- Type of Seizure: Dosage varies depending on the seizure type (e. g., partial, generalized tonic-clonic). Patient’s Age and Weight: Dosage calculations often involve weight-based formulas, particularly in children. Liver Function: Impaired liver function can significantly affect how the body processes Dilantin ER, requiring dosage adjustments. Other Medications: Interactions with other drugs can necessitate dosage changes. Therapeutic Drug Monitoring (TDM): Blood tests measure phenytoin levels to ensure the dosage is within the therapeutic range.
Typical starting doses range from 300 to 400 mg/day, often divided into two doses. Your doctor will gradually adjust the dosage to achieve optimal seizure control while minimizing side effects.
Dosage Adjustment and Monitoring
Dosage adjustments are made based on TDM results. The therapeutic range for phenytoin is generally 10-20 mcg/mL. Levels below this range may indicate inadequate seizure control, while levels above may increase the risk of side effects.
Initial Dosage: Your doctor will determine your starting dosage based on your individual needs. Titration: The dosage is carefully adjusted over time, often guided by TDM results. Regular Monitoring: Regular blood tests and clinical evaluations monitor efficacy and detect potential side effects. Dosage Changes: Changes in dosage occur based on blood levels and clinical response. Any dosage changes should be implemented under a doctor’s supervision.
Potential Side Effects
Common side effects include dizziness, nausea, drowsiness, and gum overgrowth. Severe side effects are rare but necessitate immediate medical attention. Report any unusual symptoms to your doctor.
Disclaimer:
This information is for educational purposes only and does not constitute medical advice. Always consult your doctor or pharmacist for guidance on Dilantin ER dosage and management.
