What is one serious side effect of voriconazole?

Voriconazole is an antifungal medication that can lead to several side effects, one of the most notable being visual disturbances. Patients may experience changes in vision, including blurred vision, altered color perception, or visual hallucinations. These effects occur due to voriconazole's ability to cross the blood-brain barrier and its interaction with the central nervous system.

Visual disturbances can be significant enough that patients may need to be monitored closely, particularly in the context of high doses or prolonged therapy. While other side effects like fatigue or potential impacts on kidney function can occur, the specific association between voriconazole and visual disturbances is well-documented and recognized by health professionals, making it a serious concern while using this therapy.