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Clopidogrel Teva Pharma is a brand name for Clopidogrel. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: Prevention of atherothrombotic events Clopidogrel is indicated in: Adult patients suffering from myocardial infarction (from a few days until less than 35 days), ischaemic stroke (from 7 days until less than 6 months) or established peripheral arterial disease. Adult patients suffering from acute coronary…
Verbatim from this product's EMA label. Tap a section to expand.
Posology Adults and elderly Clopidogrel should be given as a single daily dose of 75 mg. In patients suffering from acute coronary syndrome: 2Medicinal product no longer authorised Non-ST segment elevation acute coronary syndrome (unstable angina or non-Q-wave myocardial infarction): clopidogrel treatment should be initiated with a single 300-mg loading dose and then continued at 75 mg once a day (with acetylsalicylic acid (ASA) 75 mg-325 mg daily).
Since higher doses of ASA were associated with higher bleeding risk it is recommended that the dose of ASA should not be higher than 100 mg. The optimal duration of treatment has not been formally established. 1). - ST segment elevation acute myocardial infarction: clopidogrel should be given as a single daily dose of 75 mg initiated with a 300-mg loading dose in combination with ASA and with or without thrombolytics.
For patients over 75 years of age clopidogrel should be initiated without a loading dose. Combined therapy should be started as early as possible after symptoms start and continued for at least four weeks. 1). In patients with atrial fibrillation, clopidogrel should be given as a single daily dose of 75 mg.
1). If a dose is missed: Within less than 12 hours after regular scheduled time: patients should take the dose immediately and then take the next dose at the regular scheduled time. For more than 12 hours: patients should take the next dose at the regular scheduled time and should not double the dose.
1). 4). 4). Method of administration For oral use It may be given with or without food.
Summary of the safety profile Clopidogrel has been evaluated for safety in more than 44,000 patients, who have participated in clinical studies, including over 12,000 patients treated for 1 year or more. Overall, clopidogrel 75 mg/day was comparable to ASA 325 mg/day in CAPRIE regardless of age, gender and race.
The clinically relevant adverse reactions observed in the CAPRIE, CURE, CLARITY, COMMIT and ACTIVE-A studies are discussed below. In addition to clinical studies experience, adverse reactions have been spontaneously reported. Bleeding is the most common reaction reported both in clinical studies as well as in post-marketing experience where it was mostly reported during the first month of treatment.
3%. The incidence of severe cases was similar for clopidogrel and ASA. In CURE, there was no excess in major bleeds with clopidogrel plus ASA within 7 days after coronary bypass graft surgery in patients who stopped therapy more than five days prior to surgery.
3% for placebo plus ASA. In CLARITY, there was an overall increase in bleeding in the clopidogrel plus ASA group vs. the placebo plus ASA group. The incidence of major bleeding was similar between groups. This was consistent across subgroups of patients defined by baseline characteristics, and type of fibrinolytic or heparin therapy.
In COMMIT, the overall rate of noncerebral major bleeding or cerebral bleeding was low and similar in both groups. 3%). 5% vs. 8%). 8%, respectively). 6%, respectively) between groups. Tabulated list of adverse reactions Adverse reactions that occurred either during clinical studies or that were spontaneously reported are presented in the table below.
Their frequency is defined using the following conventions: common ( 1/100 to <1/10); uncommon ( 1/1,000 to < 1/100); rare (1/10,000 to <1/1,000); very rare (<1/10,000), not known (cannot be estimated from the available data). Within each system organ class, adverse reactions are presented in order of decreasing seriousness.
8). 5). Patients should be followed 3Medicinal product no longer authorised carefully for any signs of bleeding including occult bleeding, especially during the first weeks of treatment and/or after invasive cardiac procedures or surgery.
5). If a patient is to undergo elective surgery and antiplatelet effect is temporarily not desirable, clopidogrel should be discontinued 7 days prior to surgery. Patients should inform physicians and dentists that they are taking clopidogrel before any surgery is scheduled and before any new medicinal product is taken.
Clopidogrel prolongs bleeding time and should be used with caution in patients who have lesions with a propensity to bleed (particularly gastrointestinal and intraocular). Patients should be told that it might take longer than usual to stop bleeding when they take clopidogrel (alone or in combination with ASA), and that they should report any unusual bleeding (site or duration) to their physician.
Thrombotic Thrombocytopenic Purpura (TTP) Thrombotic Thrombocytopenic Purpura (TTP) has been reported very rarely following the use of clopidogrel, sometimes after a short exposure. It is characterised by thrombocytopenia and microangiopathic haemolytic anaemia associated with either neurological findings, renal dysfunction or fever.
TTP is a potentially fatal condition requiring prompt treatment including plasmapheresis. Acquired haemophilia Acquired haemophilia has been reported following use of clopidogrel. In cases of confirmed isolated activated Partial Thromboplastin Time (aPTT) prolongation with or without bleeding, acquired haemophilia should be considered.
Patients with a confirmed diagnosis of acquired haemophilia should be managed and treated by specialists, and clopidogrel should be discontinued. Recent ischaemic stroke In view of the lack of data, clopidogrel cannot be recommended during the first 7 days after acute ischaemic stroke.
1. Severe hepatic impairment. Active pathological bleeding such as peptic ulcer or intracranial haemorrhage.
Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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4)* Psychiatric disorders Hallucinations, confusion Nervous system disorders Intracranial bleeding (some cases were reported with fatal outcome), headache, paraesthesia, dizziness Taste disturbances Eye disorders Eye bleeding (conjunctival, ocular, retinal) Ear and labyrinth disorders Vertigo Vascular disorders Haematoma Serious haemorrhage, haemorrhage of operative wound, vasculitis, hypotension Respiratory, thoracic and mediastinal disorders Epistaxis Respiratory tract bleeding (haemoptysis, pulmonary haemorrhage), bronchospasm, interstitial pneumonitis, eosinophilic pneumonia 9Medicinal product no longer authorised System Organ Class Common Uncommon Rare Very rare, not known* Gastrointestinal disorders Gastrointestinal haemorrhage, diarrhoea, abdominal pain, dyspepsia Gastric ulcer and duodenal ulcer, gastritis, vomiting, nausea, constipation, flatulence Retroperitoneal haemorrhage Gastrointestinal and retroperitoneal haemorrhage with fatal outcome, pancreatitis, colitis (including ulcerative or lymphocytic colitis), stomatitis Hepato-biliary disorders Acute liver failure, hepatitis, abnormal liver function test Skin and subcutaneous tissue disorders Bruising Rash, pruritus, skin bleeding (purpura) Bullous dermatitis (toxic epidermal necrolysis, Stevens Johnson Syndrome, erythema multiforme, acute generalised exanthematous pustulosis (AGEP)), angioedema, drug-induced hypersensitivity syndrome, drug rash with eosinophilia and systemic symptoms (DRESS), rash erythematous or exfoliative, urticaria, eczema, lichen planus Reproductive systems and breast disorders Gynaecomastia Musculoskeletal, connective tissue and bone disorders Musculo-skeletal bleeding (haemarthrosis), arthritis, arthralgia, myalgia Renal and urinary disorders Haematuria Glomerulonephritis, blood creatinine increased General disorders and administration site conditions Bleeding at puncture site Fever Investigations Bleeding time prolonged, neutrophil count decreased, platelet count decreased * Information related to clopidogrel with frequency “not known”.
Reporting of suspected adverse reactions Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare 10Medicinal product no longer authorised professionals are asked to report any suspected adverse reactions via the national reporting system listed in Appendix V.
Cytochrome P450 2C19 (CYP2C19) Pharmacogenetics:
In patients who are poor CYP2C19 metabolisers, clopidogrel at recommended doses forms less of the active metabolite of clopidogrel and has a smaller effect on platelet function. Tests are available to identify a patient's CYP2C19 genotype.
Since clopidogrel is metabolised to its active metabolite partly by CYP2C19, use of medicinal products that inhibit the activity of this enzyme would be expected to result in reduced drug levels of the active metabolite of clopidogrel.
The clinical relevance of this interaction is uncertain. 2). 5). 8). Thienopyridines may cause mild to severe allergic reactions such as rash, angioedema, or haematological cross-reactions such as thrombocytopaenia and neutropaenia. Patients who had developed a previous monitored allergic reaction and/or haematological reaction to one thienopyridine may have an increased risk of developing the same or another reaction to another thienopyridine.
Monitoring for signs of hypersensitivity in patients with a known allergy to thienopyridines is advised. Renal impairment 4Medicinal product no longer authorised Therapeutic experience with clopidogrel is limited in patients with renal impairment.
2). Hepatic impairment Experience is limited in patients with moderate hepatic disease who may have bleeding diatheses. 2). Excipients This medicinal product contains hydrogenated castor oil which may cause stomach upset and diarrhoea.
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