Input: Relationship: 'be use with', Argument/Subject 1: 'levaquin', Argument/Subject 2: 'quinine'

Answer: The Prescribing Information LEVAQUIN may not be effective if used with quinine to treat an array of bacterial infections among LEVAQUIN was approved recently by the FDA , levaquin and functionally would levaquin not be appropriate for use by children under 18 teardrop of age .