When is Avelox (moxifloxacin) indicated for acute bacterial sinusitis in adults?

Avelox (moxifloxacin) is indicated for acute bacterial sinusitis caused by susceptible bacteria in adults aged 18 or older only when commonly recommended antibiotics are inappropriate because of resistance, contraindications, side effects requiring discontinuation or treatment failure, owing to the risk of prolonged, disabling and potentially irreversible serious adverse reactions.