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What Can You Not Take With Allegra?

When you are prescribed any medicine, you have a chance of experiencing some drug and substance interactions. To avoid any harm to your body and to ensure the efficacy of the medication given by your doctor, you are advised to inform your doctor beforehand of your current intake of medications, supplements, and substances as well as other significant health-related facts.

In this article, we will learn about an allergy medication, Allegra, and its possible interactions. If you are thinking about what is right while taking Allegra tablets what can you not take with Allegra? Keep reading this post.

What is Allegra and what is Allegra used for?

is a non-drowsy brand of antihistamine medication most recommended by doctors to reduce or manage allergy symptoms. It is an FDA-approved, over-the-counter drug that can help lower the effects of the natural chemical histamine in the body which rises during an allergic response by the body. Adults and children can use Allegra to relieve symptoms of seasonal allergic rhinitis, hay fever, and hives.

What can you not take with Allegra?


You will be surprised to know that the most common Allegra interactions are seen with the drugs that you have in your medicine cabinet or drinks that might be your favorite. It is important to be aware of what can you not take with Allegra for patient safety and the proper functioning of the drug.

Here are some of the combinations that are unsafe and you should avoid:

  • Fruit Juice: Can you drink fruit juice with Allegra? Allegra can’t be taken with fruit juices like orange juice, grapefruit juice, and apple juice. That’s because such fruit juices reduce the amount of Allegra that can be absorbed by the digestive tract into the body, thereby lowering the effectiveness of Allegra. If you want to avoid Allegra and fruit juice interactions, you should have a gap of 4 hours between both of their intakes.
  • Green Tea: Can you drink green tea with Allegra? Just like fruit juice, green tea too can reduce or block Allegra’s absorption when taken together. There are some dietary supplements containing green tea extract, usually in concentrated form. Moreover, the extract of green tea may be gradually released into the bloodstream over several hours. Therefore, combining products containing green tea extract or having green tea with Allegra must be avoided.
  • Antacids: Can you take antacids with Allegra? Allegra's effectiveness also gets reduced with magnesium and aluminum-containing antacids in the same way as with fruit juice and green tea. Therefore, it’s best to separately take antacids and Allegra in intervals of a few hours.
  • Dairy Products like milk, cheese, and yogurt: Can you consume dairy products with Allegra? Dairy products like milk, cheese, and yogurt contain calcium. This can interfere with the absorption of Allegra. Calcium in dairy can bind with the medication in the stomach and intestines and will reduce its effectiveness. Avoid consuming dairy products at the same time as taking Allegra.
  • Coffee and Other Caffeinated Beverages: Can you drink caffeinated beverages with Allegra? While caffeine does not directly interact with Allegra, it can exacerbate side effects like nervousness and restlessness, which some people may experience when taking antihistamines. Moderating caffeine intake while on Allegra is advisable.
  • Beer, Wine, and Spirits: Can you drink alcohol with Allegra? Alcohol can increase the risk of side effects from Allegra, such as dizziness, drowsiness, and difficulty concentrating.
  • Fried Foods, Fast Food, and Fatty Snacks: Can you eat high-fat meals with Allegra? High-fat meals can slow down the absorption of Allegra, delaying its onset of action.

Allegra Drug Interactions:

The possible interactions with prescription medications that need to be watched out for include:

  • Oral ketoconazole: an antifungal medication.
  • Erleada: a prostate cancer medication.
  • Oral erythromycin: an antibiotic.
  • Medications that cause sleepiness such as sedatives, cold/allergy medication, sleeping pills, muscle relaxers, narcotic pain medicines, and medicines for anxiety, depression, or seizures.

Preventive measures while taking Allegra:


Concluding on what you can take and what you cannot take with Allegra, here are the preventive measures that the patient should follow while taking Allegra:

  • Avoid intake of fruit juice, antacids, and green tea as well as other drugs that are known to cause interactions.
  • Drink a glass full of water.
  • Avoid overdosing on Allegra by taking the tablet only as directed or prescribed by the doctor.
  • Do not consume alcohol while taking Allegra.
  • Avoid intake of excessive caffeine drinks or beverages.
  • Before taking any supplements also consult with a doctor as Allegra can interact with other medications.
  • Allegra is contraindicated for pregnant and breastfeeding women, small children, and those who have an allergy to any of its ingredients. It is also important for pregnant females to consult a professional for detailed information on what can you not take with Allegra.
  • You should inform your doctor beforehand about your current drug and substance intake, any allergies, and health status before starting to take Allegra so that you can avoid interactions and get the maximum benefit of Allegra.

FAQs:

Can you take Allegra and Benadryl?

Many people are not aware of what can you not take with Allegra and even about its interaction with medication like Benadryl. Allegra and Benadryl are both brand-name oral antihistamines used for treating allergies. Allegra contains fexofenadine as its active ingredient while Benadryl contains diphenhydramine as its active ingredient. Clinical drug researchers have found no harmful interactions between these two ingredients so Allegra and Benadryl can be taken together. However, it is not advised to take two or more antihistamines together as there could be an overdose of antihistamines and serious health complications.

Can you take Allegra and Zyrtec?

Both Allegra (Fexofenadine) and Zyrtec (Cetirizine) belong to the oral antihistamines class of medications. There are no known interactions between the two medicines so can be taken on the same day. However, this is a therapeutic duplication and usually, doctors recommend taking one antihistamine a day to avoid overdosing. If a doctor prescribes taking Allegra and Zyrtec together, then it's appropriate.

Can you take Claritin and Allegra together?

Claritin and Allegra are both brand names for oral antihistamines. Although there are no known interactions between these two drugs, it doesn’t mean combining antihistamines would be right. Taking both drugs, loratadine and fexofenadine, at the same time may result in serious problems because of overdosing.

Can you take Allegra and Flonase together?

Allegra is an oral antihistamine while Flonase is a steroid nasal spray. Both are used as an allergy medication and can be safely used as combination therapy for allergies. Allegra starts showing its therapeutic effect in 2 hours while Flonase effects kick in up to 2 weeks. If Allegra and Flonase are taken at the same time, it's possible to bridge the gap until Flonase shows its full effect. Many healthcare professionals state if one takes Flonase and Allegra together for the long term it does not offer additional benefits. Hence for better results take Flonase alone.

Can you take Tylenol with Allegra?

Many people are curious if they can take Tylenol with Allegra or what can you not take with Allegra. Tylenol is a pain-relieving medication, and Allegra is a brand-name oral antihistamine. Those who have allergy symptoms with a sinus headache can safely combine Tylenol and Allegra. However, for patients with liver problems or those who regularly consume alcohol, Tylenol intake is not safe.

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