Medical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Consult your doctor or pharmacist for advice specific to your medications.
If you accidentally took an extra dose of apixaban, do not guess based on the tablet strength alone. An extra dose can increase bleeding risk. Contact your pharmacist, prescriber, or Poison Control (1-800-222-1222) the same day for advice on whether to hold the next dose. Get urgent medical help right away for head injury, severe headache, coughing or vomiting blood, black stools, fainting, or unusual bleeding that does not stop.
Read on for the full picture, including how Eliquis compares to warfarin in a double-dose situation.
Why a double dose of Eliquis raises your bleeding risk
Eliquis (apixaban) is a DOAC, or direct oral anticoagulant. It thins your blood by directly blocking a specific clotting factor (Factor Xa). Unlike warfarin, which has a highly variable response between patients, Eliquis has a more predictable dose-response relationship.
The FDA-approved prescribing information lists 10 mg twice daily as the initial treatment dose for DVT and PE (for the first 7 days), and 5 mg twice daily as the standard dose for atrial fibrillation. If you accidentally doubled your 5 mg dose, you are taking as much apixaban as doctors prescribe for active blood clot treatment — and any dose above your personal prescription increases your bleeding risk.
Eliquis is a blood thinner. Any extra dose increases your bleeding risk for a period of time, and you should take it seriously.
Eliquis has a half-life of approximately 12 hours. This is much shorter and more predictable than warfarin's 20 to 60 hour half-life. The extra drug will clear your system within about 24 hours.
How Eliquis compares to warfarin after a double dose
If you have taken warfarin before, you may be especially worried. But Eliquis handles a double dose quite differently.
| Feature | Eliquis (apixaban) | Warfarin (Coumadin) |
|---|---|---|
| Therapeutic index | Wider | Very narrow |
| Dose individualization | Mostly standardized (2.5 or 5 mg) | Highly individualized by INR |
| Half-life | ~12 hours | 20 to 60 hours |
| INR monitoring needed | No | Yes |
| Double dose risk level | Moderate | High |
| Readily available antidote | No (andexanet alfa is rare) | Yes (vitamin K) |
The takeaway: a double dose of Eliquis carries lower risk than a double dose of warfarin, but Eliquis has a practical disadvantage. If serious bleeding does occur, the reversal agent (andexanet alfa) is expensive and not available at every hospital. This makes prevention all the more important.
What your double dose looks like
| Your prescribed dose | You accidentally took | Max approved daily dose | How it compares |
|---|---|---|---|
| 2.5 mg twice daily | 5 mg (one dose) | 10 mg twice daily | Call pharmacist for guidance |
| 5 mg twice daily | 10 mg (one dose) | 10 mg twice daily | At DVT/PE treatment level — contact pharmacist |
| 10 mg twice daily (treatment phase) | 20 mg (one dose) | 10 mg twice daily | Above max. Call your doctor or Poison Control. |
If you are on the 2.5 mg or 5 mg dose and doubled a single dose, contact your pharmacist or Poison Control (1-800-222-1222) the same day for guidance. If you are in the DVT/PE treatment phase (already on 10 mg twice daily) and doubled that, you are above the approved dose and should call your doctor or Poison Control immediately.
What to do right now
- Contact your pharmacist, prescriber, or Poison Control (1-800-222-1222) the same day. Do not decide on your own whether to hold your next dose — get guidance from someone who knows your full medication list and health history.
- Hold your next scheduled dose until you have spoken with a pharmacist or doctor, unless they advise otherwise. Then resume your regular schedule as directed.
- Write down the time and amount you took. This helps if you need to call your doctor.
- Watch for bleeding signs (detailed below). Pay extra attention over the next 24 hours while the excess clears your system.
- Avoid activities with high injury risk for the rest of the day. Yard work, contact sports, or anything involving sharp tools can wait.
- Avoid alcohol. Both alcohol and Eliquis affect your body's clotting ability.
- Avoid aspirin, ibuprofen, and naproxen unless your doctor specifically told you to take them. These add additional bleeding risk.
- Call your doctor if you are on the 10 mg treatment dose and doubled it. A 20 mg single dose is above the approved range.
Symptoms to watch for
Mild symptoms (usually pass on their own)
- Minor bruising that appears more easily than usual
- Small nosebleed that stops on its own
- Slightly longer bleeding from a minor cut
- Bleeding gums when flossing
These are consistent with the temporarily increased blood-thinning effect and should resolve as the extra dose clears. With a ~12 hour half-life, most of the excess will be gone within 24 hours.
Serious symptoms (call your doctor)
- Unusual or large bruises that appear without an obvious cause
- Blood in your urine (pink, red, or cola-colored)
- Blood in your stool (bright red or black and tarry)
- Prolonged bleeding from cuts that does not stop with direct pressure
- Heavy or frequent nosebleeds
- Heavier than normal menstrual bleeding
Emergency symptoms (call 911)
- Coughing up blood or vomiting material that looks like coffee grounds
- Sudden severe headache (could indicate bleeding in the brain)
- Sudden vision changes, slurred speech, or confusion
- Vomiting blood
- Major bleeding from any source that you cannot control
These would be unusual from a single double dose at standard prescribed levels, but blood thinners require vigilance.
When to call your doctor or Poison Control
Contact your pharmacist, prescriber, or Poison Control (1-800-222-1222) the same day any time you take an accidental double dose of Eliquis. Also seek immediate help if:
- You are on the 10 mg treatment dose and took a 20 mg double
- You take other blood thinners or antiplatelet drugs (aspirin, clopidogrel, warfarin). Combining blood thinners compounds bleeding risk. Ask your pharmacist about potential interactions.
- You have kidney or liver problems. Eliquis is partially cleared through the kidneys and liver. Impaired function means the drug stays in your system longer.
- You are over 80 or weigh less than 132 lbs (60 kg). These are factors that often warrant the lower 2.5 mg dose. A double dose may have a more pronounced effect.
- You notice any serious or emergency bleeding symptoms
Contact numbers:
- Poison Control: 1-800-222-1222 (free, 24/7)
- Your pharmacist: Quick, accessible guidance for your specific situation
- 911: For emergencies
How to prevent accidental double dosing
Eliquis is taken twice daily, which means there are two opportunities per day to get confused about whether you already took it. Morning dose or evening dose, the question is always the same: "Wait, did I take that already?"
Track every dose with a medication reminder app
A twice-daily medication like Eliquis benefits the most from dose tracking. Regular phone alarms tell you when to take a pill, but they do not record whether you actually did.
Pillo tracks every confirmed dose so you always have a clear answer to "did I already take this?" Its persistent alarms will not stop until you respond, which means every dose gets a definitive yes-or-no entry in your history. Pillo's Drug-Drug Interaction Checker can flag interactions with your other medications.
Use a weekly pill organizer with AM/PM compartments
For twice-daily medications, a 7-day AM/PM organizer is ideal. Each compartment represents one dose. Compartment empty? You took it. Compartment still has a pill? Take it.
Anchor each dose to a routine
Pair your morning Eliquis with breakfast and your evening Eliquis with dinner or brushing your teeth. Consistent anchoring reduces the "did I or didn't I?" moments. Our medication routine guide covers this approach in detail.
Frequently asked questions
Is a double dose of Eliquis dangerous?
Any accidental double dose of Eliquis increases your bleeding risk. Contact your pharmacist, prescriber, or Poison Control (1-800-222-1222) the same day for guidance. If you are on the 10 mg treatment dose and doubled it to 20 mg, call your doctor or Poison Control right away. Watch for warning signs: severe headache, coughing or vomiting blood, blood in stool, fainting, or bleeding that will not stop — these require emergency care.
Should I skip my next dose of Eliquis after doubling up?
Call your pharmacist, prescriber, or Poison Control (1-800-222-1222) before deciding. You may be advised to hold the next dose depending on your prescribed dose and health situation — but this is not a one-size-fits-all answer. Do not skip more than one dose without guidance, as missed doses increase clot risk. If you missed a dose on a different day, see our guide on what to do if you missed a dose of Eliquis.
Does Eliquis have an antidote like warfarin does?
Warfarin's antidote (vitamin K) is cheap, widely available, and works within hours. Eliquis has a reversal agent called andexanet alfa (Andexxa), but it is extremely expensive and only stocked at some hospitals. For a routine accidental double dose, this is not relevant since it is reserved for life-threatening bleeding. It is worth knowing, however, that Eliquis double doses are best prevented rather than reversed.
How long until the extra Eliquis wears off?
Eliquis has a half-life of about 12 hours. Most of the extra dose will clear your system within 24 hours. This is much shorter than warfarin's 20 to 60 hour half-life, which is one reason Eliquis clears from your system more quickly.
What if I'm not sure whether I already took my Eliquis?
If you genuinely cannot remember, it is generally safer to skip the dose than to risk doubling up. Because Eliquis has a relatively short half-life, a single missed dose is less risky than an accidental double dose for most patients. However, skipping doses of a blood thinner is not ideal, especially if you have a high stroke risk. For more guidance on this situation, read our article on what to do when you can't remember if you took your medication.
How is missing a blood thinner dose related to stroke risk?
Missing doses of blood thinners like Eliquis can temporarily increase your risk of blood clots and stroke, particularly if you have atrial fibrillation. A single missed dose is unlikely to cause a stroke, but a pattern of missed doses is a real concern. Our guide on missed blood thinner and stroke risk explains how to think about this balance.
Related guides
- Missed a dose of Eliquis? Here's what to do
- Missed a dose of warfarin? Here's what to do
- Missed blood thinner: understanding your stroke risk
- Supplements to avoid with blood thinners
Medical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for advice specific to your medications. If you think you may have a medical emergency, call 911 or your local emergency number immediately.
Reviewed sources: FDA Eliquis Label, Poison Control
