Quetiapine/Selected Macrolide Antibiotics Interactions
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Medical warning:
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Your antibiotic may slow down how quickly your liver processes quetiapine.
What might happen:
The amount of quetiapine in your blood may increase and cause more side effects, including an irregular heartbeat.
What you should do about this interaction:
Let your healthcare professional (e.g. doctor or pharmacist) know that you are taking these medicines together. Your doctor may want to change the dose of your quetiapine while you are taking your antibiotic. Let your doctor know if you notice an increase in side effects from your medicine, especially excessive drowsiness, rapid or irregular pulse, weakness, fatigue, dizziness, and/or fainting.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
- 1.US Food and Drug Administration (FDA). Drug Development and Drug Interactions: Table of Substrates, Inhibitors and Inducers. Available at: https://www.fda.gov/drugs/drug-interactions-labeling/drug-development-and- drug-interactions-table-substrates-inhibitors-and-inducers. Updated 11/14/2017.
- 2.Seroquel (quetiapine) US prescribing information. AstraZeneca Pharmaceuticals LP September, 2020.
- 3.Seroquel (quetiapine) Canada prescribing information. AstraZeneca Canada Inc. May 15,2013.
- 4.This information is based on an extract from the Certara Drug Interaction Database (DIDB) Platform, Copyright Certara 1999-2023..
- 5.Kasahara M, Suzuki H, Komiya I. Studies on the cytochrome P450 (CYP)-mediated metabolic properties of miocamycin: evaluation of the possibility of a metabolic intermediate complex formation with CYP, and identification of the human CYP isoforms. Drug Metab Dispos 2000 Apr; 28(4):409-17.
- 6.Li KY, Li X, Cheng ZN, Zhang BK, Peng WX, Li HD. Effect of erythromycin on metabolism of quetiapine in Chinese suffering from schizophrenia. Eur J Clin Pharmacol 2005 Jan;60(11):791-5.
- 7.Drew BJ, Ackerman MJ, Funk M, Gibler WB, Kligfield P, Menon V, Philippides GJ, Roden DM, Zareba W. Prevention of torsade de pointes in hospital settings: a scientific statement from the American Heart Association and the American College of Cardiology Foundation. J Am Coll Cardiol 2010 Mar 2;55(9):934-47.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.