Yes, Biaxin can cause confusion, dizziness, palpitations, and visual disturbances as potential side effects. When dealing with chronic sinusitis after trying Clavulin and Biaxin, a third-line antibiotic may be prescribed by a doctor, taking into consideration possible interactions with other medications. It is important to consult with a specialist, such as an Otolaryngologist, to explore other possible causes for persistent or recurrent symptoms beyond bacterial infection.