"I cannot emphasize enough the behavioral significance of the Jarish-Herxheimer reaction. As part of this reaction, I have seen and heard numerous patients describe becoming suddenly aggressive without warning. I can appreciate skepticism regarding this statement. How can this be explained? Like many other symptoms seen in Lyme disease, it challenges our medical capabilities. In view of this observation, I advise that antibiotic doses be increased very gradually when suicidal or homicidal tendencies are part of the illness.

Although I have discussed the significance of depression and suicide associated with Lyme disease, I would like to [say that] treatment does help. Combined treatment which addresses both the mental and somatic components of the illness significantly improves the overall prognosis. This is supported by clinical observation and laboratory research showing antidepressant treatment improves immunocompetence. It has been demonstrated in vitro that antidepressants which act on the serotonin 1A receptor (most antidepressants) increase natural killer cell activity. In addition, there are undoubtedly other indirect effects on the immune system through other neural or neuroendurocrine and autonomic pathways. To state this more concisely - antidepressants can result in antibiotic effects, and antibiotics can have antidepressant effects."

http://www.mentalhealthandillness.co...AndSuicide.htm