Which of the following is not a side effect of phenytoin (Dilantin)?

Phenytoin, commonly known as Dilantin, is an anticonvulsant medication primarily used to control seizures. The side effects of phenytoin can vary among individuals, but confusion, hyperactivity, and rash are known to occur in some patients taking this medication.

Sleepiness is generally not considered a common side effect of phenytoin. While it can cause sedation in some patients, it does not typically manifest as pronounced drowsiness like other medications might. It’s important to note that patients may experience different reactions, and individual experiences may vary. However, in the context of this question, sleepiness stands out as less likely associated with phenytoin compared to the other options provided.

This understanding is crucial for medication aides, as it helps them recognize which symptoms are more likely related to the medication, allowing for better monitoring and reporting of side effects to healthcare professionals.