About us Contacts Drug interactions: 390 212
Drug search by name

Braftovi and Zithromax Tri-Pak

Determining the interaction of Braftovi and Zithromax Tri-Pak and the possibility of their joint administration.

Check result:
Braftovi <> Zithromax Tri-Pak
Relevance: 17.12.2022 Reviewer: Shkutko P.M., M.D., in

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer:

Using encorafenib together with azithromycin can increase the risk of an irregular heart rhythm that may be serious and potentially life-threatening, although it is a rare side effect. You may be more susceptible if you have a heart condition called congenital long QT syndrome, other cardiac diseases, conduction abnormalities, or electrolyte disturbances (for example, magnesium or potassium loss due to severe or prolonged diarrhea or vomiting). Talk to your doctor if you have any questions or concerns. Your doctor may already be aware of the risks, but has determined that this is the best course of treatment for you and has taken appropriate precautions and is monitoring you closely for any potential complications. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, shortness of breath, or heart palpitations during treatment with these medications, whether together or alone. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Professional:

GENERALLY AVOID: Encorafenib may cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may result in additive effects and increased risk of ventricular arrhythmias including torsade de pointes and sudden death. A dedicated study to evaluate the QT prolongation potential of encorafenib has not been conducted. Based on a central tendency analysis of QTc in a study of adult patients with melanoma, the largest mean QTcF change from baseline was 18 msec following administration of the recommended dose of encorafenib in combination with binimetinib. In the COLUMBUS trial, an increase in QTcF to >500 msec was measured in 0.5% (1/192) of patients who received encorafenib with binimetinib. In general, the risk of an individual agent or a combination of agents causing ventricular arrhythmia in association with QT prolongation is largely unpredictable but may be increased by certain underlying risk factors such as congenital long QT syndrome, cardiac disease, and electrolyte disturbances (e.g., hypokalemia, hypomagnesemia). In addition, the extent of drug-induced QT prolongation is dependent on the particular drug(s) involved and dosage(s) of the drug(s).

MANAGEMENT: Coadministration of encorafenib with other drugs that can prolong the QT interval should generally be avoided. Caution and clinical monitoring are recommended if concomitant use is required. Hypokalemia and hypomagnesemia should be corrected prior to initiation of encorafenib treatment, and electrolytes periodically monitored during treatment. Patients should be advised to seek prompt medical attention if they experience symptoms that could indicate the occurrence of torsade de pointes such as dizziness, lightheadedness, fainting, palpitation, irregular heart rhythm, shortness of breath, or syncope. Withhold, reduce dose, or permanently discontinue encorafenib in accordance with the product labeling for QTc exceeding 500 msec.

References
  • "Product Information. Braftovi (encorafenib)." Array BioPharma Inc., Boulder, CO.
Braftovi

Generic Name: encorafenib

Brand name: Braftovi

Synonyms: n.a.

Zithromax Tri-Pak

Generic Name: azithromycin

Brand name: Zithromax, Zmax, AzaSite, Azithromycin 3 Day Dose Pack, Azithromycin 5 Day Dose Pack, Zithromax Tri-Pak, Zithromax Z-Pak, Zithromax IV

Synonyms: Zithromax

In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.

Interaction with food and lifestyle
Disease interaction