Syphilis: Ciprofloxacin has not been shown to be effective in the treatment of syphilis. If you experience serious side effect, you or your doctor may send report to the Food and Drug Administration FDA MedWatch Adverse Event Reporting program online at http: www. That convulsions have been reported in patients receiving quinolones, including ciprofloxacin, and to notify their physician before comprar bacalhau ciprofloxacin taking this drug if there is history of this condition. Taking an NSAID while you take Proquin XR or other fluoroquinolones may increase your risk of central nervous system effects and seizures. Stop taking ciprofloxacin and call your doctor at once if you have sudden pain, swelling, tenderness, stiffness, or movement problems in any of your joints. Nasogastric administration produces greater loss of ciprofloxacin bioavailability than does nasoduodenal administration.