Dangerous Symptoms to Watch for While Taking Eliquis (Apixaban)
The most critical danger with Eliquis is serious bleeding, which can be life-threatening and requires immediate medical attention if you experience any signs of unusual or uncontrolled bleeding. 1
Critical Bleeding Warning Signs - Seek Emergency Care Immediately
You must call your doctor or get emergency medical help right away if you experience any of these bleeding symptoms while taking Eliquis:
Visible Bleeding Signs
- Red, pink, or brown urine (indicates urinary tract bleeding)
- Red or black stools that look like tar (gastrointestinal bleeding)
- Coughing up blood or blood clots
- Vomiting blood or vomit that looks like coffee grounds
- Unusual bleeding from the gums
- Frequent nosebleeds
- Menstrual or vaginal bleeding heavier than normal
- Any bleeding that is severe or you cannot control
- Bleeding that lasts longer than usual 1
Neurological Warning Signs
- Severe headaches
- Feeling dizzy or weak
- Confusion or disorientation 2
- Tingling, numbness, or muscle weakness, especially in legs and feet (may indicate spinal/epidural bleeding) 1
Other Serious Symptoms
- Unexpected pain, swelling, or joint pain (may indicate internal bleeding)
- Unusual bruising (you may bruise more easily on Eliquis) 1
Severe Allergic Reaction Symptoms - Emergency Situation
Eliquis can cause anaphylaxis or severe allergic reactions. Seek immediate medical help if you develop:
- Chest pain or tightness
- Swelling of your face or tongue
- Trouble breathing or wheezing
- Feeling dizzy or faint
- Skin rash or hives 1, 3
Important Context About Bleeding Risk
Your bleeding risk increases significantly if you combine Eliquis with other medications that affect blood clotting, including aspirin, NSAIDs (like ibuprofen), other blood thinners, SSRIs/SNRIs, or heparin 1. The FDA drug label explicitly warns about these interactions, and guidelines consistently emphasize monitoring for bleeding complications when DOACs are used with concurrent antiplatelet therapy 4, 5.
Special Situations Requiring Immediate Contact
Call your doctor immediately if you:
- Fall or injure yourself, especially if you hit your head (even without visible bleeding, internal bleeding may occur) 1
- Need any surgery, dental procedure, or spinal/epidural anesthesia 1
- Develop respiratory symptoms like dyspnea (shortness of breath), as rare cases of interstitial lung disease have been reported 6
Critical Safety Point About Stopping Eliquis
Never stop taking Eliquis without talking to your doctor first. If you're taking it for atrial fibrillation, stopping suddenly increases your stroke risk significantly. Your doctor may need to prescribe another blood thinner if Eliquis must be discontinued 1.
Common But Less Dangerous Side Effects
While the above symptoms require emergency attention, you should also report to your doctor any side effect that bothers you or doesn't go away, even if it seems minor 1.
The key principle: When in doubt about any unusual bleeding or the symptoms listed above, seek medical attention immediately rather than waiting. Bleeding complications from anticoagulants can progress rapidly and become life-threatening 4, 5, 7.