Colonoscopy performed on a 25 year old woman with eating disorder showed dark brown to black pigmentary deposit in the lining of the large intestine. Histopathology of biopsy revealed pigment laden macrophages within the lamina propria. On probing, the woman revealed use of laxatives for 9 months to lose weight. What could be the probable laxative agent that could have caused these findings?
ACastor oil
BBisacodyl
CSenna
DSorbitol
Portocaval encephalopathy is treated with
ADiuretics
BLarge amount of amino acids
CEmergency shunt surgery
DLactulose
Constipation is a possible side effect of drugs taken by the oral route. Which of the following medications is least likely to cause constipation?
Apromethazine
Bloperamide
Cdocusate
Ddiphenhydramine
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