Apixaban and Phentermine and topiramate interaction

Apixaban and Phentermine and topiramate: the Apixaban prescribing label flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Apixaban (ELIQUIS) label · effective 2026-04-24

Major

• Simultaneous use of combined P-gp and strong CYP3A4 inducers reduces blood levels of apixaban: Avoid concomitant use.

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Major

Combined P-gp and Strong CYP3A4 Inducers Avoid concomitant use of ELIQUIS with combined P-gp and strong CYP3A4 inducers (e.g., rifampin, carbamazepine, phenytoin, St.

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Moderate

Concomitant use with drugs that are combined P-gp and strong CYP3A4 inducers decreases exposure to apixaban [see Clinical Pharmacology (12.3) ] which increases the risk for stroke and other thromboembolic events.

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.