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Clinical data | |
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Pronunciation | /ˈmɛznə/ |
AHFS/Drugs.com | Monograph |
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Routes of administration | By mouth, intravenous |
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Pharmacokinetic data | |
Bioavailability | 45–79% (by mouth) |
Metabolism | Oxidised in circulation |
Elimination half-life | 0.36–8.3 hours |
Excretion | kidney |
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ECHA InfoCard | 100.039.336 |
Chemical and physical data | |
Formula | C2H5NaO3S2 |
Molar mass | 164.17 g·mol−1 |
3D model (JSmol) | |
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Mesna, sold under the brand name Mesnex among others, is a medication used in those taking cyclophosphamide or ifosfamide to decrease the risk of bleeding from the bladder. [1] It is used either by mouth or injection into a vein. [1]
Common side effects include headache, vomiting, sleepiness, loss of appetite, cough, rash, and joint pain. [1] Serious side effects include allergic reactions. [1] Use during pregnancy appears to be safe for the baby but this use has not been well studied. [2] Mesna is an organosulfur compound. [3] It works by altering the breakdown products of cyclophosphamide and ifosfamide found in the urine making them less toxic. [1]
Mesna was approved for medical use in the United States in 1988. [1] It is on the World Health Organization's List of Essential Medicines. [4]
Mesna is used therapeutically to reduce the incidence of haemorrhagic cystitis and haematuria when a patient receives ifosfamide or cyclophosphamide for cancer chemotherapy. These two anticancer agents, in vivo, may be converted to urotoxic metabolites, such as acrolein.
Mesna assists to detoxify these metabolites by reaction of its sulfhydryl group with α,β-unsaturated carbonyl containing compounds such as acrolein. [5] This reaction is known as a Michael addition. Mesna also increases urinary excretion of cysteine.
Outside North America, mesna is also used as a mucolytic agent, working in the same way as acetylcysteine; it is sold for this indication as Mistabron [6] and Mistabronco.
It is administered intravenously or orally (through the mouth). [7] The IV mesna infusions would be given with IV ifosfamide, while oral mesna would be given with oral cyclophosphamide. The oral doses must be double the intravenous (IV) mesna dose due to bioavailability issues. The oral preparation allows patients to leave the hospital sooner, instead of staying four to five days for all the IV mesna infusions.
Mesna reduces the toxicity of urotoxic compounds that may form after chemotherapy administration. Mesna is a water-soluble compound with antioxidant properties, and is given concomitantly with the chemotherapeutic agents cyclophosphamide and ifosfamide. Mesna concentrates in the bladder where acrolein accumulates after administration of chemotherapy and through a Michael addition, forms a conjugate with acrolein and other urotoxic metabolites. [5] This conjugation reaction inactivates the urotoxic compounds to harmless metabolites. The metabolites are then excreted in the urine. [8]
It is marketed by Baxter as Uromitexan and Mesnex. The name of the substance is an acronym for 2-mercaptoethane sulfonate Na (Na being the chemical symbol for sodium).
Chemotherapy is the type of cancer treatment that uses one or more anti-cancer drugs in a standard regimen. Chemotherapy may be given with a curative intent, or it may aim only to prolong life or to reduce symptoms. Chemotherapy is one of the major categories of the medical discipline specifically devoted to pharmacotherapy for cancer, which is called medical oncology.
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Cyclophosphamide (CP), also known as cytophosphane among other names, is a medication used as chemotherapy and to suppress the immune system. As chemotherapy it is used to treat lymphoma, multiple myeloma, leukemia, ovarian cancer, breast cancer, small cell lung cancer, neuroblastoma, and sarcoma. As an immune suppressor it is used in nephrotic syndrome, granulomatosis with polyangiitis, and following organ transplant, among other conditions. It is taken by mouth or injection into a vein.
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Piperacillin is a broad-spectrum β-lactam antibiotic of the ureidopenicillin class. The chemical structure of piperacillin and other ureidopenicillins incorporates a polar side chain that enhances penetration into Gram-negative bacteria and reduces susceptibility to cleavage by Gram-negative beta lactamase enzymes. These properties confer activity against the important hospital pathogen Pseudomonas aeruginosa. Thus piperacillin is sometimes referred to as an "anti-pseudomonal penicillin".
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Busulfan is a chemotherapy drug in use since 1959. It is a cell cycle non-specific alkylating antineoplastic agent, in the class of alkyl sulfonates. Its chemical designation is 1,4-butanediol dimethanesulfonate.
Hemorrhagic cystitis or haemorrhagic cystitis is an inflammation of the bladder defined by lower urinary tract symptoms that include dysuria, hematuria, and hemorrhage. The disease can occur as a complication of cyclophosphamide, ifosfamide and radiation therapy. In addition to hemorrhagic cystitis, temporary hematuria can also be seen in bladder infection or in children as a result of viral infection.
Ifosfamide (IFO), sold under the brand name Ifex among others, is a chemotherapy medication used to treat a number of types of cancer. This includes testicular cancer, soft tissue sarcoma, osteosarcoma, bladder cancer, small cell lung cancer, cervical cancer, and ovarian cancer. It is administered by injection into a vein.
Transitional cell carcinoma is a type of cancer that arises from the transitional epithelium, a tissue lining the inner surface of these hollow organs. It typically occurs in the urothelium of the urinary system; in that case, it is also called urothelial carcinoma. It is the most common type of bladder cancer and cancer of the ureter, urethra, and urachus. Symptoms of urothelial carcinoma in the bladder include hematuria. Diagnosis includes urine analysis and imaging of the urinary tract (cystoscopy).
Satraplatin is a platinum-based antineoplastic agent that was under investigation as a treatment of patients with advanced prostate cancer who have failed previous chemotherapy. It has not yet received approval from the U.S. Food and Drug Administration. First mentioned in the medical literature in 1993, satraplatin is the first orally active platinum-based chemotherapeutic drug; other available platinum analogues—cisplatin, carboplatin, and oxaliplatin—must be given intravenously.
Hyper-CVAD is a chemotherapy regimen used to treat some forms of leukemia, high-grade non-Hodgkin lymphoma, and lymphoblastic leukemia.
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