Reduction of MS-related scotomata by a new class of potassium channel blockers from ruta graveolens
The effects of the medicinal plant rue (Ruta graveolens L.) on MS-related visual-field defects was tested. In five of nine patients the scotomata were reduced by a single dose of an aqueous extract of 3 g of the drug; the effect was reversible, appearing after only about two hours and lasting for one to two days. There was no detectable action in four patients. In no case were undesirable side eff