![]() While determination of blood cyanide concentration is not required for management of cyanide poisoning and should not delay treatment with CYANOKIT, collecting a pretreatment blood sample may be useful for documenting cyanide poisoning as sampling post-CYANOKIT use may be inaccurate.Be aware of this when reporting and interpreting laboratory results. Because of its deep red color, hydroxocobalamin has been found to interfere with colorimetric determination of certain laboratory parameters (e.g., clinical chemistry, hematology, coagulation, and urine parameters).Substantial increases in blood pressure may occur following CYANOKIT therapy.Monitor renal function for 7 days following CYANOKIT therapy. Acute renal failure with acute tubular necrosis, renal impairment and urine calcium oxalate crystals have been reported following CYANOKIT therapy. ![]() ![]() Allergic reactions including angioneurotic edema have also been reported in postmarketing experience. Allergic reactions may include: anaphylaxis, chest tightness, edema, urticaria, pruritus, dyspnea, and rash.Consider alternative therapies, if available, in patients with known anaphylactic reactions to hydroxocobalamin or cyanocobalamin.Risk of Anaphylaxis and Other Hypersensitivity Reactions Consideration should be given to decontamination measures based on the route of exposure. In conjunction with CYANOKIT, treatment of cyanide poisoning must include immediate attention to airway patency, adequacy of oxygenation and hydration, cardiovascular support, and management of seizures.
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