Phentin 300 SR Tablet is an anticonvulsant medication used to treat epilepsy/seizures, and prevent seizures during/after brain surgery or after traumatic brain injury. Besides this, Phentin 300 SR Tablet may also be used to treat trigeminal neuralgia (facial nerve pain). Epilepsy is a central nervous system disorder characterized by a sudden rush of electrical activity in the brain, leading to seizures, unusual behaviour, and loss of awareness.

Phentin 300 SR Tablet contains Phenytoin, which helps prevent neurons from working at a very fast speed, thereby preventing the brain cells from firing together rapidly in an uncontrolled way. As a result, Phentin 300 SR Tablet controls the overactivity of the brain cells that cause seizures. Phentin 300 SR Tablet slows down the electrical impulses in the nerves and reduces their ability to transmit pain, thereby treating trigeminal neuralgia.

You are advised to take Phentin 300 SR Tablet for as long as your doctor has prescribed it for you, depending on your medical condition. In some cases, Phentin 300 SR Tablet may cause certain common side effects such as weakness, drowsiness, dizziness, confusion, restlessness, slurred speech, constipation, loss of coordination, and abnormal eye movement. Most of these side effects do not require medical attention and will resolve gradually over time. However, you are advised to talk to your doctor if you experience these side effects persistently.

To treat your condition effectively, continue taking Phentin 300 SR Tablet for as long as your doctor has prescribed it. Please do not skip any doses or stop taking Phentin 300 SR Tablet suddenly without consulting your doctor, as it may lead to increased seizures. Avoid taking Phentin 300 SR Tablet if you are pregnant or breastfeeding unless prescribed by the doctor. Avoid alcohol consumption while taking Phentin 300 SR Tablet, as it might cause increased dizziness. Inform your doctor about all the medicines you are taking and your health condition to rule out any side effects or interactions.

Phentin 300 SR Tablet is used in the treatment of epilepsy/seizures and trigeminal neuralgia. The detailed uses of Phentin 300 SR Tablet are as follows:<br/> • Management of Epilepsy/Seizures: Phentin 300 SR Tablet is primarily used to control various types of seizures in patients with epilepsy, such as complex partial (psychomotor) seizures and tonic-clonic seizures. It helps to reduce the frequency of these seizures.<br/> • Long-term Seizure Management: Phentin 300 SR Tablet is often used as part of a long-term strategy for managing epilepsy, allowing individuals to maintain better seizure control over time and improve their quality of life.<br/> • Short-term Prevention of Seizures: Phentin 300 SR Tablet is also used to prevent seizures before/during/after brain surgery, as well as following a traumatic brain injury (head injury).<br/> • Managing Trigeminal Neuralgia: Phentin 300 SR Tablet may be used to reduce pain episodes in patients with trigeminal neuralgia by stabilizing nerve impulses.<br/>

• Phentin 300 SR Tablet can be taken with or without food, as advised by your doctor.
• Your doctor will determine the dosage and timing of Phentin 300 SR Tablet based on your medical condition. 
• Swallow it as a whole with a glass of water.
• Do not crush, chew, break, or open the medication.

Phentin 300 SR Tablet belongs to the group of anticonvulsant medicines called 'hydantoins' used to treat epilepsy/seizures. Phentin 300 SR Tablet is also used to control and prevent fits during or after a severe head injury or brain surgery. Phentin 300 SR Tablet works by controlling the overactivity of the brain cells that cause seizures (fits). Thereby, Phentin 300 SR Tablet helps in controlling epileptic fits involving spasms of the muscles and jerking. Phentin 300 SR Tablet may also be used to treat trigeminal neuralgia (facial nerve pain). Phentin 300 SR Tablet slows down the electrical impulses in the nerves and reduces their ability to transmit pain. Thereby treating trigeminal neuralgia.

Do not take Phentin 300 SR Tablet if you are allergic to any of its contents. Stop taking Phentin 300 SR Tablet and consult your doctor if you develop any skin rashes (Stevens-Johnson syndrome), swollen glands (anticonvulsant hypersensitivity syndrome - AHS), or have suicidal thoughts. Inform your doctor if you have anaemia, alcoholism, blood disorders, depression, porphyria (a genetic disorder that disrupts the production of haemoglobin), vitamin D deficiency, or heart, kidney, or liver problems. Avoid taking Phentin 300 SR Tablet if you are pregnant or breastfeeding unless prescribed by your doctor. Phentin 300 SR Tablet should be given to children only if prescribed by a doctor. Let your doctor know if you have diabetes, as intake of Phentin 300 SR Tablet affects the blood sugar level. Avoid alcohol consumption while taking Phentin 300 SR Tablet, as it might cause unpleasant side effects. Intake of Phentin 300 SR Tablet may cause dizziness, so be cautious while driving or operating any heavy machinery.