Skip to content
My WebMD Sign In, Sign Up

Levaquin in D5W IV

Astemizole; Terfenadine/Selected QT Prolongers

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:

Astemizole and terfenadine can affect your heart's rhythm. Other drugs can have the same effect.

What might happen:

Taking astemizole or terfenadine with other agents that can affect your heart rhythm may increase your risk of an irregular heartbeat, which may be life-threatening.

What you should do about this interaction:

Let your healthcare professionals (e.g doctor or pharmacist) know that you are taking these medications together. Your doctor may want to perform an electrocardiogram (ECG) on you to check your heart's rhythm. Let your doctor know right away if you notice an irregular heartbeat or have any dizziness or fainting episodes.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.

References:

1.Apokyn (apomorphine hydrochloride) US prescribing information. Tercica, Inc. July, 2010.
2.Sprycel (dasatinib) US prescribing information. Bristol-Myers Squibb Company October, 2011.
3.Anzemet (dolasetron mesylate) US prescribing information. Sanofi-Aventis Us.S. LLC September, 2011.
4.Toviaz (fesoterodine) UK summary of product characteristics. Pfizer Limited February, 2011.
5.Foradil Aerolizer (formoterol fumarate) US prescribing information. Schering Corporation September, 2012.
6.Symbicort Turbuhaler (budesonide-eformoterol fumarate dihydrate) Australian prescribing information. AstraZeneca Pty Ltd April 30, 2004.
7.Primovist (gadoxetate disodium) Australian prescribing information. Schering-Plough Corporation November 1, 2005.
8.Primovist (gadoxetic acid) UK summary of product characteristics. Bayer plc May 1, 2008.
9.Tequin (gatifloxacin) US prescribing information. Bristol-Myers Squibb Company January, 2006.
10.Factive (gemifloxacin mesylate) US prescribing information. Oscient Pharmaceuticals October, 2011.
11.Serenace (haloperidol) Australian prescribing information. Sigma Pharmaceuticals Pty Ltd. June 5, 2001.
12.Dozic (haloperidol) UK summary of product characteristics. Rosemont Pharmaceuticals Limited September 10, 2007.
13.Haldol (haloperidol) US prescribing information. Ortho-McNeil-Janssen Pharmaceuticals, Inc. August, 2011.
14.Tykerb (lapatinib) US prescribing information. GlaxoSmithKline February, 2012.
15.Levaquin (levofloxacin) US prescribing information. Ortho-McNeil Pharmaceutical, Inc. Apil, 2012.
16.Dolophine (methadone hydrochloride) US prescribing information. Roxane Laboratories, Inc. July, 2012.
17.NegGram (nalidixic acid) US prescribing information. Sanofi-Synthelabo, Inc. November, 2012.
18.Noroxin (norfloxacin) US prescribing information. Merck & Co., Inc. March, 2013.
19.Aloxi (polonosetron hydrochloride) US prescribing information. MGI Pharma September, 2007.
20.Votrient (pazopanib) US prescribing information. GlaxoSmithKline November, 2012.
21.Edurant (rilpivirine) US prescribing information. Tibotec Pharmaceuticals December, 2012.
22.Risperidal (risperidone) UK summary of product characteristics. Janssen-Cilag, UK Limited May 14, 2004.
23.Trisenox (arsenic trioxide) US prescribing information. Cell Therapeutics, Inc. March, 2001.
24.Cipro (ciprofloxacin hydrochloride) US prescribing information. Bayer Corporation January, 2013.
25.Ciproxin (ciprofloxacin hydrochloride) UK summary of product characteristics. Bayer plc April 13, 2010.
26.Halaven (eribulin mesylate) US prescribing information. Eisai, Inc. November, 2010.
27.Trobalt (retigabine) UK summary of product characteristics. GlaxoSmithKline UK March 28, 2011.
28.Ablavar (gadofosveset trisodium) US prescribing information. Lantheus Medical Imaging, Inc. December, 2010.
29.Ranexa (ranolazine) UK summary of product characteristics. A. Menarini Pharma U.K. S.R.I. October 30, 2008.
30.Ranexa (ranolazine) US prescribing information. CV Therapeutics, Inc. July, 2011.
31.Istodax (romidepsin) US prescribing information. Celgene Corporation September, 2011.
32.Tikosyn (dofetilide) US prescribing information. Pfizer Inc. February, 2011.
33.Betapace (sotalol hydrochloride) US prescribing information. Berlex Laboratories August, 2011.
34.Vibativ (telavancin) US prescribing information. Astellas Pharma US, Inc. September, 2009.
35.The University of Arizona Center for Education and Research of Therapeutics. Drugs with Risk of Torsades de Pointes and Drugs with Possible Risk of Torsades de Pointes. Available at:http://www.crediblemeds.org/. Updated March 14, 2013.

See 3 Reviews for this Drug. - OR -

Review this Treatment

Find a Drug:

by name or medical condition or shape/color (Pill Identifier)

(for example: aspirin)

(for example: diabetes)

Pill Identifier

Learn about User Reviews and read IMPORTANT information about user generated content

Report Problems to the Food and Drug Administration
 
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Health Solutions From Our Sponsors

FDA Protect Your Health

Benzocaine and Babies: Not a Good Mix
Database Is One-Stop Resource on Kids' Medications
Explore our expanded FDA Center on WebMD.

Ask the pharmacist

Questions about medications? Get expert answers by video or live chat about allergies, pregnancy, sleep, and more.
See the Ask the Pharmacist event schedule.

Ask a Question

Popular Slideshows & Tools on WebMD

Previous Next
Close up of eye
Concentration Killers
What's robbing your focus?
Woman sitting in front of UV lights
Psoriasis Flare?
What you need to know.
Ra Management Get A Personalized Report
Rheumatoid Arthritis
Assess your symptoms.
finger blood test
Vitamin D
Ask questions and get answers.
Psoriasis
Adult Skin Problems
Bumps, rashes, and hives.
nurse helping woman on crutches
Knee Surgery
How much time to recover?
woman stretching
Living Healthy Guide
Must-see diet and fitness info.
fruit drinks
Brain Foods
Foods that can help you focus.
child brushing his teeth
Dirtiest Places
Your kids will find them.
man with cold on couch
Cold & Flu Season
How to feel better fast.
mother with children in park
Baby to Teen
Parenting tips for every age.
MS Overview
Multiple Sclerosis
Recognizing symptoms.
» See all slideshows

Women's Health Newsletter

Find out what women really need.

WebMD the app

Get trusted health information. Whenever. Wherever... with your iPhone, iPad or Android.

Find Out More

IMPORTANT: About This Section and Other User-Generated Content on WebMD

The opinions expressed in WebMD User-generated content areas like communities, reviews, ratings, or blogs are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatment or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.

Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.