a patient was given levaquin and flagella for colitis with pantoprazole. no pathogen has yet been identified. patient is having considerable muscle aches since starting this regimen and stopped taking levaquin on his own. muscle aches have subsided. he has tolerated cipro in the past. until he undergoes colonoscopy to determine etiology, could cipro be substituted for levaquin under these circumstances? interestingly, patient has no travel history, no history of recreational camping nor has he eaten any wild game in 6 months.