How should I take Avonib? Is it more appropriate to take it before or after meals?

Ivosidenib is a targeted drug targeting IDH1 mutations. It is mainly used to treat cancers such as acute myeloid leukemia (AML) and cholangiocarcinoma. It restores normal cell differentiation by inhibiting the mutated IDH1 enzyme and reducing the production of 2-hydroxyglutarate (2-HG). Proper administration is crucial to ensure efficacy and reduce side effects.

Avosidenib is usually recommended as 500 mg taken orally once daily (available in tablet form). This medicine can be taken on an empty stomach or with food. However, since some foods may affect the absorption of the medicine, it is recommended to take it on an empty stomach as much as possible, that is, 1 hour before a meal or 2 hours after a meal. If patients have stomach discomfort, they may consider taking it with a light diet, but high-fat foods should be avoided as high-fat meals may affect drug metabolism and blood drug concentrations.

Avosidenib is a substrate of CYP3A4 enzyme, so you should avoid taking it with strong CYP3A4 inhibitors or inducers (such as certain antibiotics, anti-epileptic drugs, grapefruit juice, etc.) to avoid affecting the efficacy or increasing toxicity. In addition, it is recommended to avoid taking herbal supplements such as St. John’s Wort (St. John’s Wort) while taking the medication to prevent drug interactions from reducing efficacy.

If the patient misses a dose, but it is more than 12 hours before the next dose, he should take it as soon as possible; if it is less than 12 hours, he should skip this dose and take the next dose according to the normal time. Do not double the dose to avoid increasing the risk of side effects. For patients who fail to take complete medication due to vomiting, it is not recommended to take the medication immediately, but should wait until the next prescribed medication time.

While taking ivonib, patients need to regularly monitor liver function, electrolyte levels and cardiac QT interval to ensure drug safety. At the same time, if serious adverse reactions occur (such as QT interval prolongation, severe fatigue or jaundice, etc.), the dose may need to be adjusted or the medication may be suspended. Therefore, patients should strictly follow the doctor's recommendations and seek medical advice promptly when abnormal symptoms occur.

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