Do Not Take Allegra with Juice!
Posted by Ashley on Monday, March 05, 2007
Dr. Isadore Rosenfeld, the host of Sunday Housecall on Fox News, says that you should never take the antihistamine medication Allegra with any kind of juice:

"If you take the pill with fruit juice - any kind of fruit juice, apple juice, grapefruit juice, orange juice - you lose about 36 to 40 percent of its efficacy. Please, if you're using Allergra, and especially now with the hayfever season about to be here, you should take Allegra with water."

At, we know the big reason is that the fruit juice reduces the amount of active ingredients in Allegra absorbed by the body. This reduction can be up to 35%! We also have read lately that it is best to wait several hours after taking the medicine before you drink any type of juice--wait at least 3-4 hours.

Grapefruit juice in particular has a history of interfering with medications. Dr. Isadore further cautions:

"Grapefruit juice has an effect on a wide variety of medications. If you are taking any pill - whether it's a birth control pill or antibiotic or a statin to lower cholesterol - do not take grapefruit juice. Discuss it with your doctor. Some things you can take with grapefruit juice, but many you cannot."

For more information about allergies and allergy treatments visit, our Allergy Relief Learning Center.

On 5/7/2010 Nancy wrote:
Can I eat an apple with it? How about strawberries? I take magnesium chelate --- if I take that 2 hours before or after the Allegra is that okay?
On 4/6/2011 Dean wrote:
Just saw this on commercial--I am immediately changing to taking this with water. Thanks!
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