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  2. Rivaroxaban - Wikipedia

    en.wikipedia.org/wiki/Rivaroxaban

    Rivaroxaban inhibits both free and bound Factor Xa in the prothrombinase complex. [33] It is a selective direct factor Xa inhibitor with an onset of action of 2.5 to 4 hours. [34] Inhibition of Factor Xa interrupts the intrinsic and extrinsic pathway of the blood coagulation cascade, inhibiting both thrombin formation and development of thrombi.

  3. Discovery and development of direct Xa inhibitors - Wikipedia

    en.wikipedia.org/wiki/Discovery_and_development...

    Rivaroxaban. During the SAR development of rivaroxaban, researchers realized that adding a 5-chlorothiophene-2-carboxamide group to the oxazolidonine core could increase the potency by 200 fold, which had previously been too weak for medical use. In addition to this discovery, a clear preference for the (S)-configuration was confirmed.

  4. Direct factor Xa inhibitors - Wikipedia

    en.wikipedia.org/wiki/Direct_factor_Xa_inhibitors

    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 ...

  5. Andexanet alfa - Wikipedia

    en.wikipedia.org/wiki/Andexanet_alfa

    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]

  6. Apixaban - Wikipedia

    en.wikipedia.org/wiki/Apixaban

    Apixaban and other anticoagulants (dabigatran, edoxaban and rivaroxaban) ... Mechanism of action. Apixaban is a highly selective, orally bioavailable, and reversible ...

  7. Bayer's patent for blood thinner Xarelto invalid, UK ... - AOL

    www.aol.com/news/bayers-patent-blood-thinner...

    Bayer's patent covering its best-selling blood thinner Xarelto is invalid, London's High Court ruled on Friday in a blow to the German drugmaker. The company's blockbuster Xarelto drug generated ...

  8. Vitamin K antagonist - Wikipedia

    en.wikipedia.org/wiki/Vitamin_K_antagonist

    Vitamin K antagonists (VKA) are a group of substances that reduce blood clotting by reducing the action of vitamin K. The term "vitamin K antagonist" is technically a misnomer, as the drugs do not directly antagonize the action of vitamin K in the pharmacological sense, but rather the recycling of vitamin K. Vitamin K antagonists (VKAs) have ...

  9. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/dying-to-be-free...

    Seppala also sent a team to study other clinics around the country. His staff went to facilities in Oregon and Missouri that were offering a mix of medically assisted treatments and 12-step. The team came back optimistic. “They saw in action how this could actually work,” Seppala said.

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