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The objective of this study is to investigate whether paracetamol, given at therapeutic doses (2g/day and 3 g/day), may potentiate the anticoagulant effect of warfarin.
Paracetamol is recommended as a first-line analgesic and antipyretic therapy in patients receiving short- and long-term oral anticoagulation, especially elderly patient.However,Increased INR was previously observed in patients treated with warfarin and paracetamol given at the maximum recommended dose (4g/day).
To date, the mechanism of this interaction has not been determined.A recent in vitro study suggested that the toxic metabolite N-acetyl-para-benzoquinoneimine (NAPQI) appeared to interfere with vitamin K-dependent γ-carboxylase (VKD-carb) and vitamin K epoxide reductase (VKOR) activites12. The question remaining to be dealt with is whether this in vitro observation can explain the in vivo paracetamol-warfarin interaction. We aim to evaluate the effect of paracetamol at the most widely used doses 2 and 3g/day on INR in stable patients treated with warfarin in a double blind randomized placebo-controlled trial and to identify the mechanism involved in this interaction in vivo.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Screening
Deep Venous Thrombosis
paracetamol, paracetamol, Placebo
Therapeutic Research Unit, Department of Internal Medicine, Hospital Lariboière
Published on BioPortfolio: 2014-08-27T03:14:33-0400
The purpose of this study is to determine whether the combination of paracetamol (acetaminophen) and other NSAIDs with or without weak opioids can give synergistic analgesic effect.
Paracetamol is one of the most commonly used drugs in the world, indicated for the symptomatic treatment of fever and pain of mild to moderate. More precisely, it is a drug used to relieve...
The purpose of this study is to: Compare the effect of paracetamol alone against NSAIDs alone against the association of paracetamol + NSAIDs in the treatment of traumatic pain.
The purpose of this study is to define if intravenous paracetamol may improve analgesia and outcome in pediatric surgical patients treated with non-steroidal anti-inflammatory drugs (NSAID...
The purpose of this placebo controlled clinical trial is to evaluate the dose response relationship of ibuprofen in doses from 400 mg to 800 mg and paracetamol (acetaminophen)in doses from...
We determined serum paracetamol concentrations 4 hours after the eighth dose in infants treated enterally for ductal closure. Serum paracetamol concentrations correlated (P = .0026) with ductal resp...
To evaluate the effect of effervescent paracetamol on office and ambulatory blood pressure (BP) compared with noneffervescent paracetamol in hypertensive patients.
Paracetamol is one of the most common analgesic and antipyretic drugs. Recently intravenous paracetamol has been widely used to treat moderate postoperative pain. Surgery is the main method of treatme...
It has been debated whether mild analgesics, mainly paracetamol, adversely affect aspects of neurodevelopment. We examined whether mother's use of paracetamol, aspirin or ibuprofen in pregnancy is ass...
To identify the effectiveness of intravenous paracetamol for closure of patent ductus arteriosus in preterm ≤32 weeks gestation.
DEEP VEIN THROMBOSIS of an upper extremity vein (e.g., AXILLARY VEIN; SUBCLAVIAN VEIN; and JUGULAR VEINS). It is associated with mechanical factors (Upper Extremity Deep Vein Thrombosis, Primary) secondary to other anatomic factors (Upper Extremity Deep Vein Thrombosis, Secondary). Symptoms may include sudden onset of pain, warmth, redness, blueness, and swelling in the arm.
A platelet-specific protein which is released when platelets aggregate. Elevated plasma levels have been reported after deep venous thrombosis, pre-eclampsia, myocardial infarction with mural thrombosis, and myeloproliferative disorders. Measurement of beta-thromboglobulin in biological fluids by radioimmunoassay is used for the diagnosis and assessment of progress of thromboembolic disorders.
Mechanical devices inserted in the inferior vena cava that prevent the migration of blood clots from deep venous thrombosis of the leg.
Instruments that generate intermittent forces, uniformed or graduated, to facilitate the emptying of VEINS. These devices are used to reduce limb EDEMA and prevent venous THROMBOEMBOLISM, such as deep vein thrombosis in the legs.
A condition caused by one or more episodes of DEEP VEIN THROMBOSIS, usually the blood clots are lodged in the legs. Clinical features include EDEMA; PAIN; aching; heaviness; and MUSCLE CRAMP in the leg. When severe leg swelling leads to skin breakdown, it is called venous STASIS ULCER.
Pain is defined by the International Association for the Study of Pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage”. Some illnesses can be excruci...