Can penicillin be used to treat PANDAS or prevent future PANDAS symptom exacerbations?
A. Penicillin and other antibiotics kill streptococcus and other types of bacteria. The antibiotics treat the sore throat or pharyngitis caused by the strep. by getting rid of the bacteria. However, in PANDAS, it appears that antibodies produced by the body in response to the strep. infection are the cause of the problem, not the bacteria themselves. Therefore one could not expect antibiotics such as penicillin to treat the symptoms of PANDAS. Researchers at the NIMH have been investigating the use of antibiotics as a form of prophylaxis or prevention of future problems. At this time, however, there isnt enough evidence to recommend the long-term use of antibiotics.
