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Simply switching the patient from 40 mg of morphine to 10 mg of levorphanol would be dangerous due to dose accumulation, and hence frequency of administration should ...
Antistasin, the first discovered naturally occurring direct Xa inhibitor Rivaroxaban, the first synthetic direct Xa inhibitor marketed as a drug Prior to the introduction of direct factor Xa inhibitors, vitamin K antagonists such as warfarin were the only oral anticoagulants for over 60 years, and together with heparin have been the main blood ...
ATC code B01 Antithrombotic agents is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
Doses of rivaroxaban under 10 mg can be taken with or without food, as it displayed high bioavailability independent of whether food was consumed or not. [38] If rivaroxaban is given at oral doses of 15 mg or 20 mg, it needs to be taken with food to aid in drug absorption and achieve appropriate bioavailability (≥ 80%). [38]
Andexanet alfa, sold under the brand name Andexxa among others, is an antidote for the medications rivaroxaban and apixaban, when reversal of anticoagulation is needed due to uncontrolled bleeding. [8] It has not been found to be useful for other factor Xa inhibitors. [9] It is given by injection into a vein. [9]
An anticoagulant, commonly known as a blood thinner, is a chemical substance that prevents or reduces the coagulation of blood, prolonging the clotting time. [1] Some occur naturally in blood-eating animals, such as leeches and mosquitoes, which help keep the bite area unclotted long enough for the animal to obtain blood.
Two hydrogen bonds are formed and serve an important role directing rivaroxaban into the S1 and S4 subsites. Due to these hydrogen bonds, rivaroxaban forms a L-shape and fits in the pockets. Chlorine substituent of the drug interacts with Tyr-228 in the S1 pocket which enables rivaroxaban to achieve good oral bioavailability and potency.
Thrombin demonstrates a high level of allosteric regulation. [2] Allosterism in thrombin is regulated by the exosites 1 and 2 and the sodium binding site. A recent patent review has shown that the general consensus among researchers is that allosteric inhibitors may provide a more regulatable anticoagulant. [3]