The in vitro tests suggested that extracts from seven different plants were more effective against the Lyme disease bacteria than doxycycline and cefuroxime.
The plants in question were black walnut (Juglans nigra), cat’s claw (Uncaria tomentosa), sweet wormwood (Artemisia annua), Mediterranean rockrose (Cistus incanus), Chinese skullcap (Scutellaria baicalensis), Ghanaian quinine (Cryptolepis sanguinolenta), and Japanese knotweed (Polygonum cuspidatum).
The researchers note that the ones with the highest antibacterial activity directed against B. burgdorferi were Ghanaian quinine and Japanese knotweed.