Ticlopidine


Thông tin thuốc gốc
Chỉ định và Liều dùng
Oral
Prophylaxis of subacute stent occlusion after intracoronary stenting
Adult: As an adjunct to aspirin: 250 mg bid, to be started before or on the day of the stent placement and continued for 4-6 weeks.

Oral
Prophylaxis of thrombotic stroke
Adult: In patients with history of precursors of stroke or those who have had a completed stroke, who are intolerant or unresponsive to aspirin: 250 mg bid.
Suy thận
Dose reduction or discontinuation may be required if haemorrhagic or haematopoietic disorders occur.
Suy gan
Severe: Contraindicated.
Cách dùng
Should be taken with food.
Chống chỉ định
Haemostatic disorders, active pathological bleeding (e.g. peptic ulcer bleeding, intracranial bleeding), history of or current haematopoietic disorders (e.g. neutropenia, thrombocytopenia, agranulocytosis, thrombotic thrombocytopenic purpura, aplastic anaemia). Severe hepatic impairment.
Thận trọng
Patients with increased risk of bleeding (e.g. peptic ulcer disease, surgery or trauma, other pathologic conditions); acute lower gastrointestinal bleeding, drug-eluting stents, previous hypersensitivity to thienopyridines (e.g. clopidogrel, prasugrel), pre-existing hypercholesterolaemia. Consider discontinuation of therapy 10-14 days prior to elective surgery if antiplatelet effect is not desirable. Moderate to severe renal and mild to moderate hepatic impairment. Pregnancy and lactation. Concomitant administration with anticoagulants and other antiplatelet agents.
Tác dụng không mong muốn
Significant: Prolonged bleeding time, diarrhoea, thrombocytopenia; increased serum cholesterol, triglycerides, alkaline phosphatase, transaminases, and bilirubin levels.
Ear and labyrinth disorders: Tinnitus.
Eye disorders: Conjunctival haemorrhage.
Gastrointestinal disorders: Dyspepsia, flatulence, nausea, vomiting, gastrointestinal pain.
General disorders and administration site conditions: Weakness, pain.
Metabolism and nutrition disorders: Anorexia.
Nervous system disorders: Dizziness, headache, peripheral neuropathy. Rarely, intracranial haemorrhage.
Renal and urinary disorders: Haematuria.
Respiratory, thoracic and mediastinal disorders: Bronchiolitis obliterans-organising pneumonia, epistaxis.
Skin and subcutaneous tissue disorders: Ecchymosis, pruritus, rash, urticaria, exfoliative dermatitis. Rarely, Stevens-Johnson syndrome.
Potentially Fatal: Agranulocytosis, aplastic anaemia, neutropenia, pancytopenia, thrombotic thrombocytopenic purpura. Rarely, fulminant hepatitis, hepatic necrosis.
Chỉ số theo dõi
Obtain CBC with differential (including platelet count) at baseline prior to and every 2 weeks for the 1st 3 months; at least 2 weeks after stopping the therapy (if discontinued during the 1st 3 months). Monitor for signs of bleeding. Perform LFT (alkaline phosphatase, transaminases) for the 1st 4 months if liver dysfunction is suspected.
Tương tác
Increased risk of bleeding with anticoagulants, other antiplatelet agents (e.g. aspirin), thrombolytic agents, SSRIs, pentoxifylline, NSAIDs. Increased serum concentration of carbamazepine, phenytoin, theophylline, ketamine. Decreased serum concentration with antacids. Reduced clearance with cimetidine. Decreased serum concentration of digoxin and ciclosporin. May increase the plasma half-life of CYP450 substrates (e.g. phenazone).
Tương tác với thức ăn
May increase bioavailability with food.
Tác dụng
Description: Ticlopidine, a thienopyridine antiplatelet agent, undergoes metabolism into unknown active metabolite which irreversibly antagonises the P2Y12 component of adenosine diphosphate (ADP) receptors by interfering with the binding of fibrinogen to the platelet membrane, which blocks the activation of GPIIb/IIIa receptor complex. This results in reduced platelet adhesion and platelet-platelet interactions.
Onset: Approx 6 hours.
Pharmacokinetics:
Absorption: Readily and almost completely absorbed from the gastrointestinal tract. Food may increase the bioavailability by approx 20%. Time to peak plasma concentration: Approx 2 hours.
Distribution: Plasma protein binding: Approx 98%, mainly to albumin and lipoproteins; ≤15%, to α1-acid glycoprotein.
Metabolism: Extensively metabolised in the liver into at least 1 active metabolite.
Excretion: Via urine (approx 60% as metabolites); faeces (23%, with low amounts as unchanged drug). Elimination half-life: Approx 13 hours.
Đặc tính

Chemical Structure Image
Ticlopidine_01

Source: Ticlopidine_01

Bảo quản
Store below 30°C. Protect from light.
Phân loại MIMS
Thuốc kháng đông, chống kết dính tiểu cầu & tiêu sợi huyết
Phân loại ATC
B01AC05 - ticlopidine ; Belongs to the class of platelet aggregation inhibitors excluding heparin. Used in the treatment of thrombosis.
Tài liệu tham khảo
Anon. Ticlopidine. AHFS Clinical Drug Information [online]. Bethesda, MD. American Society of Health-System Pharmacists, Inc. https://www.ahfscdi.com. Accessed 16/10/2020.

Anon. Ticlopidine. Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 16/10/2020.

Apo-Ticlopidine 250 mg Tablets (Pharmaforte [M] Sdn Bhd). National Pharmaceutical Regulatory Agency - Ministry of Health Malaysia. https://www.npra.gov.my/. Accessed 16/10/2020.

Apo-Ticlopidine 250mg Tablets (Apotex Inc). MIMS Singapore. http://www.mims.com/singapore. Accessed 16/10/2020.

Buckingham R (ed). Ticlopidine Hydrochloride. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 16/10/2020.

Pharmaniaga Ticlopidine Tablet 250 mg (Pharmaniaga Manufacturing Berhad). National Pharmaceutical Regulatory Agency - Ministry of Health Malaysia. https://www.npra.gov.my/. Accessed 16/10/2020.

Ticlid Film-Coated Tablets (Sanofi-Aventis [Malaysia] Sdn. Bhd.). National Pharmaceutical Regulatory Agency - Ministry of Health Malaysia. https://www.npra.gov.my/. Accessed 27/11/2020.

Ticlopidine. Gold Standard Drug Database in ClinicalKey [online]. Elsevier Inc. https://www.clinicalkey.com/. Accessed 19/10/2020.

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