Fentinol-100 Tablet is a prescription medication used to treat and prevent epilepsy by decreasing abnormal brain nerve cell activity. It can be taken alone or in combination with other medications, and its dosage may increase gradually. It may take several weeks to work, but regular use is crucial. Common side effects include skin rashes, headaches, sleep difficulties, dizziness, and sleepiness. Before taking Fentinol, inform your doctor about any other medications, contraceptive pills, and pregnancy or breastfeeding. Frequent blood tests may be necessary to monitor your response to the medication.