| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,508,605,592 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
cyclosporine |
Also found in: Dictionary/thesaurus | 0.04 sec. |
|
cyclosporine /cy·clo·spor·ine/ (-spor´ēn) a cyclic peptide from an extract of soil fungi that selectively inhibits T cell function; used as an immunosuppressant to prevent rejection in organ transplant recipients and to treat severe psoriasis and severe rheumatoid arhtritis.
cyclosporine (sī´klōspor´ēn), n brand name: Sandimmune;
drug class: immunosuppressant; action: produces immunosuppression by inhibiting lymphocytes; uses: to prevent rejection of tissues and/or organ transplants. cyclosporine a neutral cyclic peptide, the major metabolic product of the fungus Tolypocladium inflatum; a specific suppressor of the T lymphocyte response, important in tissue transplantation.
ciclosporin (cyclosporine) An immunosuppressant used in the treatment of the ocular manifestation of autoimmune diseases, uveitis, scleritis, keratoconjunctivitis sicca, ligneous conjunctivitis, and to prevent rejection of corneal grafts, etc. It is believed to exert its immunosuppressive effect by inhibiting the activation of cytotoxic T-lymphocytes. See immunosuppressants.
cyclosporine Warning - Hazardous drug! Gengraf, Neoral, Sandimmune Pharmacologic class: Polypeptide antibiotic Therapeutic class: Immunosuppressant Pregnancy risk category C FDA Boxed Warning• Drug should be prescribed only by physicians experienced in managing systemic immunosuppressive therapy for indicated disease. At doses used for solid-organ transplantation, it should be prescribed only by physicians experienced in immunosuppressive therapy and management of organ transplant recipients. Patient should be managed in facility with adequate laboratory and medical resources. Physician responsible for maintenance therapy should have complete information needed for patient follow-up. ActionUnclear. Thought to act by specific, reversible inhibition of immunocompetent lymphocytes in G0-G1 phase of cell cycle. Preferentially inhibits T lymphocytes; also inhibits lymphokine production. Ophthalmic action is unknown. AvailabilityCapsules: 25 mg, 100 mg Injection: 50 mg/ml Oral solution: 100 mg/ml Solution (ophthalmic): 0.05% (0.4 ml in 0.9 ml single-use vial) ⊘Indications and dosages ➣ Psoriasis Adults: Neoral only - 1.25 mg/kg P.O. b.i.d. for 4 weeks. Based on patient response, may increase by 0.5 mg/kg/day once q 2 weeks, to a maximum dosage of 4 mg/kg/day. ➣ Severe active rheumatoid arthritis Adults: Neoral only - 1.25 mg/kg P.O. b.i.d. May adjust dosage by 0.5 to 0.75 mg/kg/day after 8 weeks and again after 12 weeks, to a maximum dosage of 4 mg/kg/day. If no response occurs after 16 weeks, discontinue therapy. Gengraf only - 2.5 mg/kg P.O. daily given in two divided doses; after 8 weeks, may increase to a maximum dosage of 4 mg/kg/day. ➣ To prevent organ rejection in kidney, liver, or heart transplantation Adults and children: Sandimmune only - Initially, 15 mg/kg P.O. 4 to 12 hours before transplantation, then daily for 1 to 2 weeks postoperatively. Reduce dosage by 5% weekly to a maintenance level of 5 to 10 mg/kg/day. Or 5 to 6 mg/kg I.V. as a continuous infusion 4 to 12 hours before transplantation. ➣ To increase tear production in patients whose tear production is presumed to be suppressed due to ocular inflammation associated with keratoconjunctivitis sicca Adults: 1 drop in each eye b.i.d. given 12 hours apart Off-label uses• Aplastic anemia Contraindications• Hypersensitivity to drug and any ophthalmic components PrecautionsUse cautiously in: Administration• For I.V. infusion, dilute as ordered with dextrose 5% in water or 0.9% normal saline solution. Administer over 2 to 6 hours.
Adverse reactionsCNS: tremor, headache, confusion, paresthesia, insomnia, anxiety, depression, lethargy, weakness CV: hypertension, chest pain, myocardial infarction EENT: visual disturbances, hearing loss, tinnitus, rhinitis; (with ophthalmic use) ocular burning, conjunctival hyperemia, discharge, epiphora, eye pain, foreign body sensation, itching, stinging, blurring GI: nausea, vomiting, diarrhea, constipation, abdominal discomfort, gastritis, peptic ulcer, mouth sores, difficulty swallowing, anorexia, upper GI bleeding, pancreatitis GU: gynecomastia, hematuria, nephrotoxicity, renal dysfunction, glomerular capillary thrombosis Hematologic: anemia, leukopenia, thrombocytopenia Metabolic: hyperglycemia, hypomagnesemia, hyperuricemia, hyperkalemia, metabolic acidosis Musculoskeletal: muscle and joint pain Respiratory: cough, dyspnea, Pneumocystis jiroveci pneumonia , bronchospasm Skin: acne, hirsutism, brittle fingernails, hair breakage, night sweats Other: gum hyperplasia, flulike symptoms, edema, fever, weight loss, hiccups, anaphylaxis InteractionsThe following interactions pertain to oral and I.V. routes only. Drug-drug. Acyclovir, aminoglycosides, amphotericin B, cimetidine, diclofenac, gentamicin, ketoconazole, melphalan, naproxen, ranitidine, sulindac, sulfamethoxazole, tacrolimus, tobramycin, trimethoprim, vancomycin: increased risk of nephrotoxicity Allopurinol, amiodarone, bromocriptine, clarithromycin, colchicine, danazol, diltiazem, erythromycin, fluconazole, imipenem and cilastatin, itraconazole, ketoconazole, methylprednisolone, nicardipine, prednisolone, quinupristin/dalfopristin, verapamil: increased cyclosporine blood level Azathioprine, corticosteroids, cyclophosphamide: increased immunosuppression Carbamazepine, isoniazid, nafcillin, octreotide, orlistat, phenobarbital, phenytoin, rifabutin, rifampin, ticlopidine: decreased cyclosporine blood level Digoxin: decreased digoxin clearance Live-virus vaccines: decreased antibody response to vaccine Lovastatin: decreased lovastatin clearance, increased risk of myopathy and rhabdomyolysis Potassium-sparing diuretics: increased risk of hyperkalemia Drug-diagnostic tests. Alanine aminotransferase, aspartate aminotransferase, bilirubin, blood urea nitrogen, creatinine, glucose, low-density lipoproteins: increased levels Hemoglobin, platelets, white blood cells: decreased values Drug-food. Grapefruit, grapefruit juice: decreased cyclosporine metabolism, increased cyclosporine blood level High-fat diet: decreased drug absorption (Neoral) Drug-herbs. Alfalfa sprouts, astragalus, echinacea, licorice: interference with immunosuppressant action St. John's wort: reduced cyclosporine blood level, possibly leading to organ rejection Patient monitoring• Observe patient for first 30 to 60 minutes of infusion. Monitor frequently thereafter. Patient teaching• Advise patient to dilute Neoral oral solution with orange or apple juice (preferably at room temperature) to improve its flavor. cyclosporine Immunology A cyclic undecapeptide, which induces potent T-cell immunosuppression; cyclosporine mitigates GVHD, allograft rejection, ulcerative colitis, autoimmune disease, schistosomiasis; it may be of use in aplastic anemia, in
combination with antilymphocyte globulin and methylprednisone for psoriasis Adverse effects Nephrotoxicity, HTN, neurotoxicity–eg, tremor, seizures, encephalopathy, headache, coma, hyperlipidemia, hyperkalemia, hypomagnesemia, HTN, anemia,
anaphylaxis, nausea, paresthesias, ↑ EBV, lymphoma, pseudolymphoma, fluid retention, thromboses, hirsutism, liver toxicity Lab ↑ Creatinine, ↑ uric acid, ↑ BR, ↑ cholesterol. Cf Tacrolimus. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
Abbott's accused cyclosporin formulation, Gengraf, allegedly contained only hydrophilic excipients and the surfactant Span 80, asserted by Abbott not to be a "lipophilic component. It began legal proceedings to force Abbott Laboratories to withdraw their generic version, Gengraf, from the market, claiming that Abbott was using microemulsion technology invented and patented by Novartis. Gengraf is sold by the same sales force responsible for Thymoglobulin. |
| Medical Dictionary |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|