apixaban vs phenytoin
Side-by-side comparison of apixaban and phenytoin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
moderate Known Drug Interaction
7.2 Combined P-gp Strong CYP3A4 Inducers Avoid concomitant use of apixaban tablets with combined P-gp and strong CYP3A4 Inducers (e.g., rifampin, carbamazepine, phenytoin, St.
Recommendation: Avoid using these two medicines together and ask your doctor for an alternative medication.
Apixaban (Eliquis) is a medicine that helps prevent blood clots. It is used to lower the risk of stroke and other serious problems caused by blood clots.
Phenytoin injection is used to treat certain types of seizures. It can also prevent seizures during or after neurosurgery.
Apixaban is used to lower the chance of stroke in people with an irregular heartbeat called atrial fibrillation. It also prevents blood clots in the legs (deep vein thrombosis or DVT) that can happen after hip or knee replacement surgery. Apixaban is also used to treat DVT and lung clots (pulmonary embolism or PE), and to prevent them from coming back.
This medicine treats generalized tonic-clonic status epilepticus, a type of prolonged seizure. It also helps prevent and treat seizures that may happen during or after brain surgery. Sometimes, it can be used for a short time instead of the oral form of phenytoin when you cannot take the medicine by mouth.
Apixaban is a type of drug called a factor Xa inhibitor. It works by blocking a substance in the blood that helps clots form. This helps to keep your blood flowing smoothly.
Phenytoin works by slowing down the signals in the brain that cause seizures. It stabilizes nerve cell membranes, reducing excessive electrical activity. This helps to prevent seizures from starting or spreading.
- • Bleeding more easily (like nosebleeds or heavier periods)
- • Bruising more easily
No common side effects listed.
- Irregular heartbeat 3,970
- Shortness of breath 3,598
- Stroke 3,508
- Blood clot 2,806
- Heart problem 2,509
- The medicine is reacting with another medicine 1,547
- Seizure 1,382
- Poisoning from different substances 1,353
- Convulsion 1,260
- Prolonged seizure 790
Apixaban has two important warnings. First, stopping apixaban too early can raise your risk of blood clots. Don't stop taking it without talking to your doctor. Second, if you have spinal anesthesia or a spinal puncture while taking apixaban, you could get a blood clot around your spine, which can cause long-term paralysis.
This medicine can cause serious heart problems if given too quickly. The injection rate should not be faster than 50 mg per minute for adults, and 1 to 3 mg/kg/min (or 50 mg per minute, whichever is slower) for children. Your heart will be monitored closely during and after the injection.
Apixaban is not recommended during pregnancy because it may increase the risk of bleeding during pregnancy and delivery. Talk to your doctor about the risks and benefits of taking apixaban if you are breastfeeding. You may need to stop taking the drug or stop nursing.
Taking phenytoin during pregnancy may increase the risk of birth defects. If you are pregnant or plan to become pregnant, talk to your doctor about the risks and benefits of this medicine.
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How to Read This apixaban vs phenytoin Comparison
apixaban is classified in the Direct Oral Anticoagulant (Factor Xa Inhibitor) drug class, while phenytoin sits within the Anticonvulsant (Hydantoin) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, apixaban has 16,391 submissions while phenytoin has 6,332. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known moderate interaction flagged in FDA labeling, attributed to phenytoin causes your body to get rid of apixaban much faster than it should. this means the medicine may not work well enough to stop blood clots from forming.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between apixaban and phenytoin - always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.