Sriphen 100 is a medication that contains Phenytoin (100mg per capsule). It is primarily used to manage and prevent seizures in conditions such as epilepsy. Phenytoin works by stabilizing electrical activity in the brain, reducing the frequency and severity of seizures. The capsules are typically available in a pack of 100. Always follow the prescribed dosage and consult a healthcare provider before using this medication to ensure safe and effective use.