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Real Life Pharmacology - Pharmacology Education for Health Care Professionals

Rivaroxaban Pharmacology

Real Life Pharmacology - Pharmacology Education for Health Care Professionals

Eric Christianson, PharmD; Pharmacology Expert and Clinical Pharmacist

Education, Health & Fitness, Medicine

5716 Ratings

🗓️ 18 April 2019

⏱️ 17 minutes

🧾️ Download transcript

Summary

Rivaroxaban is a factor 10a inhibitor that inhibits clot formation and thins the blood.



Rivaroxaban needs to be monitored for bleed risk. Checking periodic CBC can help us assess if hemoglobin and hematocrit are remaining stable.



Enzyme inducers like rifampin, St. John's Wort, and carbamazepine can reduce concentrations and increase the risk of treatment failure.



NSAIDs and antiplatelet medications can significantly increase the risk of bleed with rivaroxaban.



Rivaroxaban should not be used with dual P-glycoprotein and CYP3A4 inhibitors. Examples include ketoconazole, itraconazole, and ritonavir.

Transcript

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0:00.0

Hey, all. This is Eric Christensen, pharmacist, host of the Real Life Pharmacology podcast.

0:05.8

Hope you're enjoying the show overall. If you're listening for the first time,

0:10.0

hopefully you can get some value out of this podcast, whether you're preparing for real life

0:16.5

or whether you're preparing for pharmacology exams or board exams.

0:21.9

So with that, let's get into the podcast.

0:24.8

We're going to cover River Roxaban today.

0:27.4

The brand name of that medication is Zarelto.

0:31.2

And this is an anticoagulant type medication.

0:35.0

This is one of the more common newer oral anticoagulants.

0:42.3

Riveroxaban and Apixaban, which I have done a podcast about,

0:46.7

are probably the two most commonly used new oral anticoagulants that I see.

0:53.5

And actually there was a recent update with AHA, ACC, and HRS in

1:00.2

their guidelines. And NOACs are now preferred. So those are the novel oral anticoagulants,

1:07.6

Riveroxban and Apixaband, as well as a couple others, too, that aren't used quite as often.

1:12.5

But these drugs are now preferred over warfarin in the majority of situations in atrophibulation when we're trying to prevent stroke.

1:24.2

There's a couple exceptions like mitral stenosis as well as potentially

1:30.1

artificial valves as well. But overall, in the majority of cases, these drugs are now preferred.

1:38.7

So that's an interesting update there. And how these drugs work, or at least how River Oximabon works,

1:47.5

is it prevents those clots by inhibiting factor 10A. So this is an important factor that's within

1:55.5

the clotting cascade and formation of clots. So factor 10-a is required for the conversion of

2:04.3

prothrombin to thrombin, and thrombin ultimately activates platelets and forms fibrin, which is

2:13.9

essential for clot formation. So by preventing, by inhibiting factor 10A,

...

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