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

Metronidazole Oral, Intravenous and Zithromax (Azithromycin Oral Suspension)

Determining the interaction of Metronidazole Oral, Intravenous and Zithromax (Azithromycin Oral Suspension) and the possibility of their joint administration.

Check result:
Metronidazole Oral, Intravenous <> Zithromax (Azithromycin Oral Suspension)
Relevance: 07.10.2022 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:

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

Professional:

Limited data suggest that metronidazole may rarely prolong the QT interval of the electrocardiogram. 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. There have been isolated reports of QT prolongation and ventricular arrhythmias occurring in patients treated with metronidazole. However, a causal relationship has not been established, as nearly all published reports have involved underlying conditions and/or concomitant medications that predispose to QT prolongation. 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). 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.

References
  • Kounas SP, Letsas KP, Sideris A, Efraimidis M, Kardaras F "QT interval prolongation and torsades de pointes due to a coadministration of metronidazole and amiodarone." Pacing Clin Electrophysiol 28 (2005): 472-3
Metronidazole Oral, Intravenous

Generic Name: metronidazole

Brand name: Flagyl, MetroGel, FIRST Metronidazole, Flagyl 375

Synonyms: Metronidazole, MetroNIDAZOLE (Systemic)

Zithromax (Azithromycin Oral Suspension)

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.