<prompt> Priapism is seen inRat poisoningArsenic poisoningSildenafil poisoningCantharide poisoning  <response>: The Spanish fly Cantharis vesicatoria, blister beetle is 2 x 0.6 cm in dimensions. Active principle: Cantharidin.Action: It is locally irritant and nephrotoxic agent Priapism in males and aboion in pregnant females may occur. The patient becomes prostrated with convulsions, and coma preceding death. TreatmentGastric lavage, demulcents but not fat and symptomatic treatment. Ref: Krishnan vij Textbook of Forensic Medicine ; 5th ed; Page no: 486 