Generic Name: moxifloxacin (moxi FLOX a sin) Brand Names: Avelox, Avelox I.V. What is the most important information I should know about moxifloxacin? • Use the moxifloxacin for as many days as it was prescribed for you, even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated. • Do not use moxifloxacin without first talking to your doctor if you or any member of your family have a heart condition known as long QT syndrome. Also, do not use moxifloxacin if you are also using a heart rhythm medicine such as quinidine (Cardioquin, Quinidex, Quinaglute), procainamide (Pronestyl, Procan SR), amiodarone (Cordarone, Pacerone), sotalol (Betapace), and others. • Certain other medicines you may be using can decrease the effectiveness of moxifloxacin and must be used at least 4 hours after or 8 hours before you use moxifloxacin. Some of these medicines are antacids that contain magnesium, calcium, or aluminum (such as Tums, Rolaids, Maalox, and others); the ulcer medicine sucralfate (Carafate); vitamin or mineral supplements that contain iron or zinc; or didanosine chewable/ buffered tablets or pediatric powder for oral solution (ddI, Videx, Videx Pediatric, and others). • Use caution when driving, operating machinery, or performing other hazardous activities. Moxifloxacin may cause dizziness. If you experience dizziness, avoid these activities. What is moxifloxacin? • Moxifloxacin is an antibiotic in the class of drugs called fluoroquinolones. It fights bacteria in the body. • Moxifloxacin is used to treat bacterial infections. • Moxifloxacin may also be used for purposes other than those listed in this medication guide.