Active substanceFluorouracilFluorouracil
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  • Dosage form: & nbspsolution for intravascular and intracavitary administration
    Composition:

    1 ml of the solution contains:

    active substance: fluorouracil 50 mg

    Excipients: sodium hydroxide about 13.7 mg,

    water for injection up to 1 ml

    Description:

    Transparent from colorless to light yellow color solution.

    Note: In the case of precipitate formation under the influence of low temperatures, the solution should be heated to 60 ° C before use, shaking vigorously, and then cooled to room temperature. The sediment must dissolve.

    Pharmacotherapeutic group: antitumor agent, antimetabolite.
    ATX: & nbsp

    L.01.B.C.02   Fluorouracil

    Pharmacodynamics:

    Fluorouracil antimetabolite of uracil. The mechanism of action is due to the transformation of the drug in tissues into an active metabolite, fluoruridine monophosphate, which is a competitive inhibitor of the enzyme thymidylate synthetase,which takes part in the synthesis of nucleic acids. Fluorouracil violates the synthesis of DNA and causes the formation of structurally deficient RNA, inhibiting the division of tumor cells. Active metabolites are localized within the cell.

    Pharmacokinetics:

    After intravenous administration, the preparation is rapidly biotransformed to an active metabolite of fluorouridine monophosphate and distributed in tumor tissues, intestinal mucosa, bone marrow, liver and other tissues. Easily penetrates the blood-brain barrier, getting into the cerebrospinal fluid and brain tissue. Metabolized mainly in the liver with the formation of inactive metabolites. The half-life of fluorouracil depends on the dose administered and is 8-22 minutes. About 20% of the drug is excreted by the kidneys unchanged for 6 hours (90% of this amount is excreted within 1 hour) and 60-80% - through the respiratory tract in the form of carbon dioxide (CO2), a small amount is excreted with bile.

    Indications:

    Cancer of the colon and rectum, breast, esophagus, stomach, pancreas, primary liver cancer, ovarian cancer, cervical cancer, bladder cancer,malignant tumors of the head and neck, prostate cancer, adrenal cancer, vulvar cancer, penile cancer, carcinoid.

    Contraindications:
    • hypersensitivity to fluorouracil and / or any other component of the drug;

    • combination with inhibitors of dihydropyrimidine dehydrogenase (DPD) (brivudine, sorivudine);

    • pregnancy and lactation;

    • severe leukopenia, peitropenia, thrombocytopsy, oppression of bone marrow hematopoiesis, active bleeding;

    • stomatitis, ulceration of the mucous membrane of the gastrointestinal tract (GIT), pseudomembranous enterocolitis;

    • acute severe infection (including Herpes Zoster, chickenpox);

    • severe renal dysfunction;

    • weakened patients;

    • postoperative period less than 30 days after extensive surgical intervention;

    • children's age (efficacy and safety not proven).

    Carefully:

    FROM caution prescribe the drug to patients with kidney and / or liver failure, history of cardiovascular disease, acute infectious diseases of the viral, fungal or bacterial nature (including tuberculosis, chicken pox,shingles), bone marrow infiltration by tumor cells, with previous intensive radiation therapy or chemotherapy.


    Pregnancy and lactation:

    Fluorouracil contraindicated in pregnancy. If necessary, use during lactation should stop breastfeeding.

    Women of childbearing age should use reliable contraceptive methods when using fluorouracil.

    Fluorouracil should be considered a potential teratogen for humans.


    Dosing and Administration:

    Fluorouracil-RONTS® is a part of many chemotherapy regimens, in this connection. When choosing the route of administration, regimen and doses in each individual case, reference should be made to the literature. The drug is injected intravenously or by slow infusion, intraarterially, intracavitary.

    The following doses and regimens are recommended:

    • 500 mg / m2 or 12-13.5 mg / kg daily for 3-5 days, the interval between courses is 4 weeks;

    • 600 mg / m2 or 15 mg / kg (the highest single dose of 1 g) once a week, 6-10 doses;

    • 600 mg / m2 on days 1 and 8 intravenously in combinations with other cytostatics;

    • 1 g / m 2/ day intravenously drip in the form of a constant infusion for 96-120 hours.

    When used in combination with calcium folinate, the dose of fluorouracil is usually reduced by 25-30%.
    Side effects:

    Adverse reactions occurring more often than in single cases are listed according to the following gradation: very often (> 10%); often (> 1%, <10%); infrequently (> 0.1%, <1%); rarely (> 0.01%, <0.1%); very rarely (<0.01%).

    From the hematopoiesis: very often - leukopenia, myelosuppression, neutropenia, rarely - thrombocytopenia, anemia. The most significant decrease in the number of leukocytes is usually observed from 9 to 14 days (up to 25 days), platelets from 7 to 17 days of treatment. Very rarely - paitsitopeia, agranulocytosis.

    From the immune system: very often immunosuppression with an increase in the incidence of infectious diseases, rarely generalized allergic reactions, anaphylactic shock, the frequency of unknown development of secondary infections, sepsis.

    Endocrine disorders: frequency is unknown increase in total thyroxine (T4) and triiodothyronine (T3) and blood plasma without increasing the content of free T4 and thyroid-stimulating hormone (TSH) and without clinical signs of hyperthyroidism.

    From the side of nutrition and metabolism: infrequently hyperuricemia.

    From the digestive system: very often - anorexia, decreased appetite, inflammation and / or ulceration of the mucous membranes of the gastrointestinal tract (including stomatitis, glossitis, pharyngitis, esophagitis, mucositis, proctitis), often - diarrhea, nausea, vomiting, infrequently - dehydration, bleeding gastrointestinal tract, damage to liver cells, impaired liver function, very rarely cholecystitis, liver necrosis, incl. with a fatal outcome, the frequency is unknown - heartburn, taste change.

    From the cardiovascular system: very often - ischemic changes pas ECG, dilated cardiomyopathy, often - pain in the heart, rarely - arrhythmias, ischemia, decreased blood pressure, rarely myocardial infarction, heart failure, myocarditis, cardiomyopathy, cardiogenic shock, the peripheral cerebral circulation, Raynaud's syndrome, thrombophlebitis, thromboembolism, very rarely angina, cardiac arrest, sudden death.

    From the nervous system: often - cerebellar ataxia, impaired sensitivity, snotty, euphoria, nystagmus, retrobulbar neuritis, headache, infrequently,transient cerebral syndrome (ataxia, confusion, extrapyramidal movement disorders and cortical disorders), very rarely - leukoencephalopathy with symptoms such as ataxia, speech impairment, disorientation, myasthenia gravis, aphasia, seizures, coma (after application in high doses or in patients with insufficiency of dihydropyrimidine dehydrogenase), cerebral infarction (with combined therapy with cisplatin and mitomy).

    From the respiratory system, chest and mediastinum: very often - nosebleeds, bronchospasm, cough, shortness of breath.

    From the sense organs: rarely - conjunctivitis, irritation of the eye mucosa, excessive lacrimation due to duct stenosis, photophobia, optic neuritis, cataract, cortical blindness (at high doses), diplopia, visual impairment, blepharitis, eyelid reversal, limitation of eye mobility.

    On the part of the reproductive system: infrequently - reversible oppression of the sexual glands, leading to amenorrhea or azoospermia.

    From the skin, subcutaneous tissues and skin appendages: very often - alopecia (reversible), syndrome of palmar-plantar erythrodysesthesia (sensation of tingling in the hands and feet, followed by the appearance of pain, hyperemia and swelling), infrequently - hyperpigmentation of the skin, depigmentation of the skin in the form of bands near the veins, itching of the skin, rash, change (onycholysis, pain and thickening of the nail bed, paronychia) and convergence of the nail plate, dry and cracked skin, erythema, telangiectasia, rarely - photosensitivity.

    Allergic reactions: rarely - skin rash, dermatitis, urticaria, hyperemia of the skin of the palms and soles.

    Other: infrequently - fever, weakness, thrombophlebitis at the injection site.

    Overdose:

    Signs and symptoms of an overdose include nausea, vomiting, diarrhea, ulcerative stomatitis and gastric bleeding, suppression of bone marrow function (thrombocytopaedy, leukopenia and agranulocytosis).

    In case of an overdose it is necessary to monitor the function of hematopoiesis of patients during less than 4 weeks, when symptomatic treatment occurs symptomatic therapy. The specific antidote to fluorouracil is not known.

    Interaction:

    Calcium folinate enhances the therapeutic and toxic effects of fluorouracil.

    When used in combination with other cytostatics and interferon-alpha, there may also be an increase in both the antitumor effect and the toxicity of the fluorouracil.

    Gemcitabine can increase the systemic exposure of fluorouracil.

    Phenytoin - with simultaneous use increases the toxicity of phenytoin.

    Clozapine Do not use with fluorouracil because of the increased risk of developing agranulocytosis.

    At long joint application with mitomycin the appearance of a hemolytic-uremic syndrome was observed.

    Fluorouracil should not be used after and with therapy with aminophenazone, phenylbutazone and sulfonamides.

    Chlordiazepoxide, disulfiram, griseofulvin and nzoniazide may increase the activity of fluorouracil.

    In connection with the suppression of natural defense mechanisms in the treatment of fluorouracil, it is possible to intensify the process of replication of the vaccine virus or to decrease the production of antibodies in response to the administration of the vaccine when vaccinated with live and inactivated vaccines, so the interval between the end of the use of fluorouracil and vaccination is from 3 months to 1 year. Fluorouracil can to reduce the immunological response to vaccination. With simultaneous administration with a live vaccine, severe antigenic reactions can develop.

    In patients with breast cancer receiving cyclophosphamide, methotrexate, fluorouracil increases the risk of thromboembolic complications. When used in combination with radiotherapy fluorouracil can potentiate skin toxicity first.

    Simultaneous use of anticoagulants, coumarin derivatives, such as warfarin. can increase aptnkoagulyatsionny effect. With the simultaneous use of warfarin with fluorouracil, there is an increase in prothrombin time and an international normalized ratio (MBUT).

    Thiazide diuretics can enhance the myelosuppressive effects of antitumor drugs.

    When used in combination with levamisole, the degree of hepatotoxicity significantly increases (an increase in the activity of alkaline phosphatase is often accompanied by an increase in serum transaminases or bilirubin).

    When administered simultaneously with enzyme inhibitors dihydropyrimidine dehydrogenase, which is responsible for the catabolism of endogenous and fluorinated pyrimidines (brivudia, sorivudine), the toxicity of fluorouracil significantly increases.The interval between the use of brivudine, sorivudine or their analogues and fluorouracil should be at least 4 weeks. With the simultaneous administration with the drug sorivudine marked leukopenia, in some cases led to a legal outcome.

    With combined therapy in combination with other drugs that depress the function of the bone marrow, correction of doses of fluorouracil is required.

    With the simultaneous use of fluorouracil and anthracyclines, the cardiotoxic effect of the latter may be enhanced.

    Antimicrobial (for example, metronidazole) and antiulcer (for example, cimetidine) drugs with simultaneous application inhibit metabolism and increase the plasma concentration, duration of action and toxicity of fluorouracil.

    With the simultaneous use of fluorouracil, calcium folinate and vinorelbine, the development of severe inflammation of the mucous membranes of the oral cavity and gastrointestinal tract is possible.

    Fluorouracil It is impossible to mix in one vial with other medicines in connection with the proved incompatibility with many preparations.

    Special instructions:

    Treatment with fluorouracil should be performed under the supervision of a doctor who has experience in the use of antitumor therapy.

    Fluorouracil is a cytotoxic drug, so care must be taken when handling it.

    When stomatitis, diarrhea, bleeding occur, the drug should be discontinued until the symptoms disappear.

    During the treatment it is necessary to control the total number of leukocytes, the absolute number of neutrophils, platelets, to determine hematocrit, hemoglobin, the activity of "liver" samples and the level of bilirubin, to examine the oral cavity of the patient to identify signs of stomatitis.

    With a significant reduction in body weight, decreased bone marrow function, impaired liver or kidney function, in the early postoperative period (up to 30 days) after extensive surgical intervention, the initial dose should be reduced by 1/3 or 1/2.

    Nucleoside analogues, which are inhibitors of the enzyme dihydropyrimidine dehydrogenase, such as brivudine and sorivudine, can cause a sharp increase in the concentration of fluorouracil in the blood serum, which can lead to lethal toxicity.In this regard, the interval between the use of fluorouracil and the use of brivudine and sorivudine, as well as their analogues should be at least 4 weeks.

    Men and women of childbearing age during treatment with fluorouracil and at least 3 months after should be taken reliable methods of contraception. Before using the solution in case of precipitate formation under the influence of low temperatures, the solution should be heated to 60 deg. C, vigorously shaking, and then cool to room temperature. If the sediment does not dissolve, the product must be disposed of in accordance with the regulations in force for the destruction of hazardous waste.

    Effect on the ability to drive transp. cf. and fur:

    Given that with the use of fluorouracil-RONTS® patients may develop nausea, vomiting, disorientation, confusion, headache, lacrimation, photophobia, visual impairment and other symptoms that affect the general condition, from driving the car and working with other mechanisms during treatment is recommended to abstain.

    Form release / dosage:

    Solution for intravascular and intracavitary administration 50 mg / ml.

    Packaging:

    5 ml, 10 ml, 20 ml or 100 ml in bottles of light-shielded glass I of hydrolytic class with a capacity of 5 ml or 10 ml, or 20 ml or 100 ml. respectively, ukuporennyh stoppers from brombutilovogo rubber under run-in by aluminum caps or aluminum caps with a plastic insert.

    One bottle in a cardboard box with instructions for use.

    Storage conditions:

    In dry, dark place at a temperature of 15 to 25 ° C.

    Keep out of the reach of children!

    Shelf life:

    2 years.

    Do not use the drug after the expiry date printed on the package.

    Terms of leave from pharmacies:On prescription
    Registration number:LP-002838
    Date of registration:23.01.2015
    The owner of the registration certificate:RNTS named after N.N. Blokhin RAMS RNTS named after N.N. Blokhin RAMS Russia
    Manufacturer: & nbsp
    Information update date: & nbsp09.11.2015
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