QUESTIONS AND ANSWERS ABOUT ANTHRAX PREVENTION AND TREATMENT October 10, 2001 Q: Is there an approved treatment for anthrax A: Yes. Three types of antiobiotics are approved for anthrax: ciprofloxacin, tetracyclines (including doxycycline), and penicillins. For people who have been exposed to anthrax but do not have symptoms, 60 days of one of these antibiotics is given to reduce the risk or ...