Ifomes

Intravenous-
Prophylaxis against urothelial toxicity:

• Adult: Refer to individual and local protocol. Dose calculated according to cytotoxic dose. Normally given at a dose ≥cytotoxic dose. Duration of treatment should be as long as cytotoxic treatment; plus the time it takes for concentration of antineoplastic metabolites in urine to fall. Administered either by short (15-30 minutes) or continuous (24 hr) infusion.
• Child: Refer to individual and local protocol. Has been used in children >4 mth.

Oral-
Prophylaxis against urothelial toxicity:

• Adult: Refer to individual and local protocol. Dose calculated according to cytotoxic dose. Normally given at a dose ≥cytotoxic dose. Duration of treatment should be as long as cytotoxic treatment; plus the time it takes for concentration of antineoplastic metabolites in urine to fall.
• Child: Refer to individual and local protocol.

Nausea, vomiting, colic, diarrhoea, anorexia, dyspepsia, unpleasant taste, constipation; headache, malaise, fatigue, depression, irritability, somnolence, hyperaesthesia, dizziness, confusion; rash, pruritus, generalised urticaria, alopecia, inj site reactions, flushing; leucopenia, thrombocytopenia, anaemia, granulocytopenia, chest pain, oedema (peripheral, facial and periorbital), hypotension, tachycardia, hypertension, increased heart rate, ST-segment elevation; dyspnoea, coughing, pneumonia, tachypnea; fever; hypocalcaemia; increased sweating; back pain, limb pain, myalgia; increased hepatic enzyme concentrations; pharyngitis; ulceration of mucous membranes. In patients receiving oral and/or IV mesna and were specifically not treated with concurrent cytotoxic therapy: flatulence; rhinitis; rigors; back pain; rash; conjunctivitis; arthralgia. Inhalation: bronchospasm.

Mesna is a cytoprotective agent indicated as a prophylactic agent in reducing the incidence of ifosfamide-induced hemorrhagic cystitis.

Mesna is used to prevent urothelial toxicity associated with oxazaphosphorine, ifosfamide or cyclophosphamide. It acts in the kidney; reacting with thiol groups of urotoxic metabolites (e.g. acrolein) of ifosfamide and cyclophosphamide. It is used as a mucolytic in the management of some respiratory tract conditions e.g. cystic fibrosis where other mucolytics have failed. It acts by reducing the viscosity of pulmonary secretions; the drug's free sulfhydryl group is thought to reduce disulfide linkages of mucoproteins.

Protective effect applies only to the urinary tract; pregnancy, lactation. Patients with auto-immune disorders. IV formulation may contain benzyl alcohol as a preservative; avoid in neonates or infants. Instruct patients to seek medical attention if discolouration of urine occurs. During treatment, monitor urine for erythrocytes and haematuria. Maintain adequate hydration in all patients. Patients who vomit within 2 hr of oral dose should repeat dose or receive IV dose.

Antidote preparations