Blood Thinners: Warfarin, Eliquis, Xarelto & Aspirin

Atrial fibrillation lets blood pool in the heart and form clots that can travel to the brain. A DVT in the leg can break off to the lungs. After certain stents or heart valve surgery, platelets and clotting factors need deliberate suppression. Blood thinners shift that balance toward bleeding to prevent clotting events that are often worse.

Stopping because you feel fine is dangerous — many people have no symptoms right before a stroke. If cost, side effects, or procedures make you want to pause, talk through a plan rather than quitting on your own.

Warfarin blocks vitamin K and requires INR blood tests to stay in range. Diet changes, antibiotics, and dozens of drugs shift levels — which is manageable but demands consistency.

Direct oral anticoagulants (apixaban/Eliquis, rivaroxaban/Xarelto, dabigatran/Pradaxa) have more predictable dosing for many people and fewer food interactions, though kidney function still matters. Antiplatelets like clopidogrel (Plavix) and aspirin work on platelets rather than clotting factors — often after stents or for secondary stroke prevention.

Minor bruising and nosebleeds happen. Blood in stool, vomit that looks like coffee grounds, a sudden severe headache, or bleeding that will not stop after pressure means emergency care — mention every blood thinner you take, including aspirin and fish oil.