Main article: Non-MP antibiotics under special circumstances
The fluoroquinolones are a family of synthetic broad-spectrum antibiotics, which eradicate bacteria by interfering with DNA replication. However, the fluoroquinolones are relatively ineffective against intracellular pathogens.
Fluoroquinolones can be used as an acute-phase antibiotic for patients on the Marshall Protocol because they produce little or no immunopathology.
All the fluoroquinolones are thought to act in a similar way.
The following issues should be addressed when a physician is deciding whether to use fluoroquinolone antibiotics:
Main article: Non-MP antibiotics under special circumstances
For reasons ranging from prophylaxis to acute infections, Marshall Protocol (MP) are sometimes advised to take an antibiotic different from the ones used on the MP.