Cyclophosphamide is widely used in combination chemotherapy to treat dogs with lymphoma. The metabolite of cyclophosphamide. acrolein. can irritate the urinary bladder and cause sterile haemorrhagic cystitis. https://www.roneverhart.com/Fit-Shaced-Shit-Faced-St-Patricks-Day-Shamrock-Drinking-Thermal-Shirt/