Himalaya Nefrotec DS is a veterinary supplement for dogs and cats with urinary and kidney support properties, acting as an antilithic (to prevent and break down stones), diuretic (to flush out toxins and excess fluid), and urinary antiseptic (to prevent infections). It is used to treat urinary tract infections, bladder and kidney stones, and as supportive therapy for kidney dysfunction and inflammation of the bladder (cystitis) or urethra (urethritis).