Which symptom is listed as a potential sign of gabapentin adverse effects?

• A. Weight gain and edema with reduced urine output
• B. Improved energy
• C. Ringing in ears
• D. Hair growth

Answer: (A)

Gabapentin can cause fluid retention, which leads to peripheral edema and often accompanies weight gain. This combination reflects a known adverse effect pattern for the medication, where the body holds onto fluid and the total body weight increases. The other listed changes—improved energy, ringing in the ears, or hair growth—do not align with common gabapentin side effects. If swelling occurs, especially with a noticeable decrease in urine output, it should be discussed with a clinician, as it may indicate fluid imbalances that need evaluation.