Which of the following is NOT a side effect of carbamazepine?

• A. Ataxia
• B. Nausea
• C. Rash
• D. Fatigue

Answer: (C)

Carbamazepine has several common adverse effects that relate to its effects on the nervous system and other organs. Ataxia occurs as the drug can slow CNS function, affecting balance and coordination, especially when starting treatment or raising the dose. Nausea is a frequent gastrointestinal side effect that many patients notice early on. Fatigue or drowsiness is common because the medication can depress overall alertness. Rash is also a known adverse reaction, and while it can be mild, it can be serious (including potential for Stevens-Johnson syndrome in rare cases), so skin monitoring is important.

Because all of these are recognized side effects, there isn’t a listed option that is not a side effect. The question as written doesn’t have a correct choice, since rash is indeed a possible reaction to carbamazepine.