The investigators will investigate the safety and effectiveness of an Iranian traditional
medicine regarding its ability to dissolve existing kidney stones. Calcium stone formers will
be recruited for a 12 week trial. Each subject will receive Lapis judaicus or placebo in
random order. End points are changes in urinary chemistries and stone burden by Ultra
sonography / CT scan.
It will be used in proven calcium stone forming adults who are not pregnant. This phase is a
double blind, randomized, placebo controlled Entry, first and 12 week 24 hour urine
supersaturations, pH and sodium determinations will be collected. Entry and final stone
quantification Ultra sonography / CT scan will be performed. End points will be changes in
urine chemistry/supersaturation and stone quantitative stone volume.