Phenytoin is primarily used to treat which of the following conditions?

• A. Diabetes
• B. Hypertension
• C. Asthma
• D. Epilepsy

Answer: (D)

Verified step by step guidance

1. Phenytoin is a medication that falls under the category of anticonvulsants, which are drugs used to prevent or treat seizures.
2. Seizures are sudden, uncontrolled electrical disturbances in the brain, which can cause changes in behavior, movements, feelings, and levels of consciousness.
3. Epilepsy is a neurological disorder characterized by recurrent, unprovoked seizures. It is one of the most common conditions treated with anticonvulsant medications like phenytoin.
4. Phenytoin works by stabilizing the electrical activity in the brain, thereby reducing the frequency and severity of seizures in individuals with epilepsy.
5. While diabetes, hypertension, and asthma are medical conditions, they are not typically treated with phenytoin, as this medication is specifically used for managing epilepsy.