Which statement indicates that more teaching is needed about phenytoin?

• A. Mood changes, erratic behavior, or suicidal ideation are normal side effects.
• B. I should report any gingival overgrowth to my clinician.
• C. I will take the medication with meals to reduce GI upset.
• D. I can stop taking it if I have mild headaches.

Answer: (A)

Understanding safety knowledge about phenytoin is what this item is probing. The statement that mood changes, erratic behavior, or suicidal ideation are normal side effects shows a gap in safety education. These neuropsychiatric changes are not expected or “normal” with phenytoin and can be serious warning signs. They require immediate communication with a clinician because they may indicate an adverse reaction or other mental health concerns, and timely assessment is important for patient safety.

Knowing what is appropriate to report helps, too. Gingival overgrowth is a recognized side effect that should be brought to a clinician’s attention so dental care can be coordinated. Taking the medication with meals to reduce GI upset is standard, practical advice to support tolerability and adherence. Stopping the medication on mild headaches is not safe and should be discussed with a clinician instead of stopping on your own.