@debzathome And if those symptoms are ongoing I hope you will get them checked out to find more likely causes rather than to assume it's the Eliquis and do nothing except to possibly stop taking the drug.

@debzathome I honestly can't see how this is due to apixaban. It 'MAY' be, but I highly doubt it. I believe you are in a tachyarrhythmia, possible AF or AFL, and you're not doing well. You should see an internist right away or a cardiologist if you feel you can wait.

Note that, if you can tell that your HR is above 100 BPM, you are probably fibrillating, and you should get help before 24 hours have passed. If it's near 130-160 BPM, it means your ventricle is pacing the rogue signal and is beating as quickly, which is not good for more than a few hours. Please see, 'rapid ventricular response', or RVR in google.

@debzathome I was given Eliquis after I had a pulmonary embolism and experienced the same problem as you. Immediately (after 1 dosis of 5mg) I was too weak to stand up and felt faint. This weakness stayed with me for several weeks, eventhough I had only taken 2 dosis of 5mg eliquis in that first day and stopped taking it after the first day.
Ofcourse it is possible that there is another medical problem for you, but you are not the only one to feel faint, weak with this medication.