From Iliads therapy: "PULSE THERAPY consists of administering antibiotics (usually parenteral ones) two to four days in a row per
week. This allows for several advantages:
* Dosages are doubled (ie: cefotaxime, 12 g daily), increasing efficacy
* More toxic medications can be used with increased safety (ie: vancomycin)
* May be effective when conventional, daily regimens have failed.
* IV access may be easier or more tolerable
* More agreeable lifestyle for the patient
* Often less costly than daily regimens
Note that this type of treatment is expected to continue for a minimum of ten weeks, and often must continue
beyond twenty weeks. The efficacy of this regimen is based on the fact that it takes 48 to 72 hours of
continuous bactericidal antibiotic levels to kill the spirochete, yet it will take longer than the four to five days
between pulses for the spirochetes to recover. As with all Lyme treatments, specific dosing and scheduling
must be tailored to the individual patient's clinical picture based upon the treating physician's best clinical
judgment."
www.ilads.org/lyme/B_guidelines_12_17_08.pdf