Background: Orofacial dyskinesia is rarely reported with antibiotics. Among antibiotics, third-generation fluoroquinolones are known to cause movement disorders. We report the first patient who developed orofacial dyskinesia after taking a fourth-generation fluoroquinolone, namely, moxifloxacin.
Methods: The patient is a 58-year-old woman who was treated with moxifloxacin for acute bronchitis. She developed orofacial dyskinesia involving the tongue, lips, and facial muscles after treatment.
Results: Discontinuation of moxifloxacin and treatment with clonidine resulted in significant reduction of orofacial dyskinesia over the period of 8 to 12 weeks. A review of literature shows reports of a variety of involuntary movements with third-generation fluoroquinolones, mostly manifesting in patients with impaired renal and kidney function.
Conclusions: The fourth-generation fluoroquinolone moxifloxacin can cause orofacial dyskinesia like third-generation fluoroquinolone antibiotics and in a patient with normal renal and liver function.