Vincristine sulfate

Thông tin thuốc gốc
Chỉ định và Liều dùng
Acute lymphoblastic leukaemia, Acute myeloid leukaemia, Brain tumour, Hodgkin's disease, Neuroblastoma, Non-Hodgkin's lymphoma, Small cell lung cancer, Wilm's tumour
Adult: Usual recommended dosage: 1.4-1.5 mg/m2 once weekly. Max: 2 mg weekly. Subsequent doses may be modified based on clinical and haematological responses and tolerance of the patient. May be used in combination with other drugs. Consult published protocols for the dosage, method and sequence of administration.
Child: Usual recommended dosage: 1.5-2 mg/m2 once wkly; for patients ≤10 kg: Initiate at 0.05 mg/kg once wkly. Subsequent doses may be modified based on clinical and haematological responses and tolerance of the patient. May be used in combination with other drugs. Prescribers should consult published protocols for the dosage, method and sequence of admin.
Hepatic Impairment
Dose adjustment may be needed. Serum bilirubin >3 mg/100ml: Reduce dose by 50%.
Tương kỵ
Any solution that may change pH of the solution beyond 3.5-5.5.
Chống chỉ định
Patients with demyelinating form of Charcot-Marie-Tooth syndrome. Pregnancy and lactation. Intrathecal admin (may be fatal). Patients receiving radiation therapy through ports which include liver.
Thận trọng
Elderly. Preexisting pulmonary dysfunction or neuromuscular disease; leucopenia or a complicating infection; impaired liver function; obstructive jaundice. Routine prophylactic laxative needed to ensure regular bowel movement. Discontinue immediately if extravasation occurs, and inj any remaining drug into another vein, followed by local Inj of hyaluronidase and topical heat application to the affected area to aid in drug removal and reduce discomfort. Discontinue in patients who develop progressive dyspnea. CBC to be checked before each dose admin. Frequent monitoring of uric acid during first 3-4 wk of treatment and watch out for uric acid nephropathy.
Phản ứng phụ
Dose limiting neurotoxicity (e.g. motor function impairment, gait abnormalities), hyperuricaemia, bronchospasm, azospermia, amenorrhoea, alopoecia, leucopenia, urinary dysfunction, abdominal cramps, vomiting, diarrhoea, severe constipation, paralytic ileus, convulsions, hypertension, orthostatic hypotension, ptosis, hoarseness, optic neuropathies, hallucinations, blindness, neurological deafness, difficulty in walking, syndrome of inappropriate ADH secretion.
Potentially Fatal: Myelosuppression.
IV/Parenteral: D
Quá liều
Symptoms: mainly extensions of its common adverse effects. Management: Treatment is supportive and includes prevention of side effects from syndrome of inappropriate antidiuretic hormone secretion (SIADH) (e.g. fluid restriction and admin of loop diuretic); admin of anticonvulsants and use of enemas (to prevent ileus). Closely monitor the CV system and determine the blood counts daily to guide transfusion requirements. Folinic acid 100 mg admin IV every 3 hr for 24 hr and then every 6 hr for at least 48 h may be admin. Haemodialysis unlikely to be useful.
Tương tác
Decreased digoxin (tablets) and verapamil absorption with antineoplastic regimens. Increased etoposide serum levels with vincristine. Increased toxicity when ganciclovir given with, immediately before or after vincristine. Reduced vincristine metabolism with miconazole. Increased neurotoxicity with isoniazid, itraconazole, voriconazole, posaconazole and nifedipine. Decreased immune response when used concurrently with vaccines. Increased myelotoxicity with zidovudine. Increased risk of thromboembolic complications with tamoxifen. Increased risk of ototoxicity with ototoxic drugs (e.g. platinum-containing antineoplastic agents). Possible risk of earlier onset and/or increased severity of adverse effects with macrolides. Possible increase in vincristine levels with aprepitant. Possible decrease in antiepileptic levels with vincristine, monitor serum antiepileptic levels and effectiveness of chemotherapy.
Potentially Fatal: Increased risk of bronchospasm with mitomycin C. Reduced vincristine clearance and increased toxicity with asparaginase, minimise toxicity by giving vincristine 12-24 hr before L-asparaginase admin.
Tác dụng
Description: Vincristine arrests cell division at the metaphase stage by inhibiting microtubule formation in the mitotic spindle.
Absorption: Poorly absorbed from the GI tract.
Distribution: Does not cross the blood-brain barrier in significant amounts. Protein-binding: Extensive.
Metabolism: Metabolised in liver.
Excretion: Excreted mainly via bile into faeces (as unchanged drug and metabolites, 70-80%), urine; 85 hrs (elimination half-life).
Bảo quản
Store at 2-8°C. Protect from light.
Phân loại MIMS
Thông báo miễn trừ trách nhiệm: Thông tin này được MIMS biên soạn một cách độc lập dựa trên thông tin của Vincristine sulfate từ nhiều nguồn tài liệu tham khảo và được cung cấp chỉ cho mục đích tham khảo. Việc sử dụng điều trị và thông tin kê toa có thể khác nhau giữa các quốc gia. Vui lòng tham khảo thông tin sản phẩm trong MIMS để biết thông tin kê toa cụ thể đã qua phê duyệt ở quốc gia đó. Mặc dù đã rất nỗ lực để đảm bảo nội dung được chính xác nhưng MIMS sẽ không chịu trách nhiệm hoặc nghĩa vụ pháp lý cho bất kỳ yêu cầu bồi thường hay thiệt hại nào phát sinh do việc sử dụng hoặc sử dụng sai các thông tin ở đây, về nội dung thông tin hoặc về sự thiếu sót thông tin, hoặc về thông tin khác. © 2021 MIMS. Bản quyền thuộc về MIMS. Phát triển bởi
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