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What is the Difference Between Claritin and Allegra?

Allergies impact more than 50 million Americans each year. This is why it s important to find an allergy medication that works for you. Learn all about them here!

It may not be cold season, but for many, it’s still sniffle season. Allergies impact more than 50 million Americans each year. This is why it’s important to find an allergy medication that works for you. The two favorites tend to be Claritin and Allegra. One is not better than the other, but some work better for others. Here’s what you should know about these two relief medications.

Seasonal Allergies

Typically, you are not born with allergies but develop them over time. When people first start to develop allergy symptoms, they often think it’s a cold. They then begin to take cold medicine and wonder why it’s not helping. Unfortunately, it may be seasonal allergies that change over time. For example, you may have an allergy to something like ragweed, also known as hayfever. Later on in life, you may develop a different allergy in the same family like grass or tree pollen. 


Because pinpointing what your triggers are can be expensive and challenging, many opt for an over-the-counter medication like Claritin or Allegra. They are both considered antihistamines. When your body encounters something it sees as a threat (an allergy), it produces histamines to thwart off the “danger.” Antihistamines block these side effects so you can enjoy your life without the uncomfortable hindrance of allergy symptoms. 


Claritin

  • Slightly sedating
  • Treats: sneezing, runny nose, itchy eyes, throat and nose, watery eyes
  • Preferred during pregnancy
  • Treats seasonal allergies and chronic hives
  • Works best after two hours
  • Medicinal liquid option for children as young as two years
  • Not the best choice for someone with liver impairment, as it metabolizes in the liver


Allegra

  • Non-sedating
  • Treats: sneezing, runny nose, itchy eyes, throat and nose, watery eyes
  • Generally considered “safe” for breastfeeding mothers
  • Treats seasonal allergies and chronic hives
  • Works best after three hours
  • Oral option for children as young as six years
  • A better choice for someone with liver impairment


You may want to try both products to see what works best for your allergies. However, we hope you feel more prepared to make a decision the next time you are at the store. Let the guessing game end!


Allergies are a nuisance, but your medicine choice shouldn’t be! If you have further concerns about your allergies, contact Advanced Respiratory Care Network today.

Common Problems to Avoid with Your CPAP
Wednesday, November 25, 2020

There are many issues people can run into when they aren't familiar with their CPAP. We're here to help! Find the most common problems to avoid here.

Can Digestive Issues Make It Hard to Breathe? Understanding the Gut-Lung Link
Friday, August 8, 2025

Your breathing problems might not start in your lungs. Learn how digestive conditions like acid reflux and gastroparesis can make asthma, chronic bronchitis, and other lung conditions worse.

How to Avoid Heat Exhaustion for the Family
Wednesday, July 27, 2022

Enjoy your summer with your family and keep everyone safe with these five tips for avoiding heat exhaustion.

Exercise Tips for Respiratory Conditions: Staying Active Despite Limitations
Sunday, March 10, 2024

At the Advanced Respiratory Care Network, we are here to support you and your respiratory health. Visit our website to explore our services and give us a call if you have any questions.

Thanksgiving, Sodium, and Your Heart: 5 Holiday Eating Tips for Canadians
Wednesday, October 1, 2025

Thanksgiving is a time for comfort, connection, and heart-smart choices, so we're sharing 5 simple tips to help you enjoy your favourite dishes while protecting your heart and lungs.

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Can Digestive Issues Make It Hard to Breathe? Understanding the Gut-Lung Link
Friday, August 8, 2025

Your breathing problems might not start in your lungs. Learn how digestive conditions like acid reflux and gastroparesis can make asthma, chronic bronchitis, and other lung conditions worse.

Simple Ways to Help You Fall Asleep
Thursday, October 22, 2020

In this blog, we're giving you tips on how you can prepare for bedtime, fall asleep faster and stay asleep as well as further testing options so you can get your sleep schedule back on track.

Wildfires and Summer Heat: How It Can Aggravate Your Breathing and Tips to Improve Air Quality
Wednesday, May 25, 2022

We want to share five tips with you to improve the air quality in your home during the summer and wildfire season.

Sleep Apnea and Pregnancy: What You Need to Know
Wednesday, August 14, 2024
3 Safe and Gentle Exercises to Do Post-COVID
Thursday, March 31, 2022

Many people who had COVID-19 experienced mild symptoms that didn't impact their everyday life once they recovered. Some people, however, experienced much more severe cases that left them facing a long road to full recovery.

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