Contrasting Response of Urine Stone Risk to Medical Treatment in Calcium Oxalate Versus Calcium Phosphate Stone Formers.

Patients treated with Thiazide lowered urine calcium and SS in both stone groups. Patients treated with K-Cit had no significant changes in urine calcium and had a decrease in CaOx SS in CaOx SF. The study raises questions about the best preventive treatment for patients with CaP stones and suggests that K-Cit may not confer the same benefits on CaP SF as it does on CaOx SF.