"Specific drugs "
"1977-1986: triamterene and glafenine (NSAID)"
"In the Middle East and parts of Asia, ceftriaxone (a third-generation cephalosporin) has been a clinically-significant risk factor for drug-induced stones. In the USA excessive self-medication with the over-the-counter medicine guaifenesin, an expectorant (often combined with ephedrine), has resulted in hundreds of additional cases of stones."
"UTI"
"glafenine (NSAID - withdrawn from market in 1990s)"
"Medication-specific risk factors 1"
Expected headings
"Patient-related risk factors"
"Medication-specific risk factors 1"
"Mechanisms"
"Drugs causing radiolucent calculi on CT include"
"Specific drugs "
"Indinavir and other protease inhibitors"
"All studies of the prevalence of drug-induced calculi are limited by the inherent difficulty that the calcium-containing calculi which form secondary to a patient's medication are indistinguishable from other calcium-containing calculi as there are no differences at all in their composition, size or morphology. Conversely when stones actually contain the iatrogenic agent they are easier to separate out (albeit with sophisticated analysis) from other non-drug-induced calculi."
"In contradistinction to most renal tract calculi, the majority of drug-induced stones are radiolucent on plain radiography, although most are visible on ultrasound or CT. Nonetheless drug-induced calculi form the majority of CT-radiolucent calculi, although all are visible on ultrasound or contrast-enhanced CT; using the latter modality low density filling defects will be seen."