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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.

Shovelling Snow Safely & Smart Ways to Protect Your Heart & Lungs This Winter 

Shovelling snow this winter? Learn how cold weather and heavy snow can affect your heart and breathing, especially if you have asthma, COPD, high blood pressure or a heart condition.

What Happens to Your Lungs After You Quit Smoking
Friday, May 1, 2026

Quitting smoking causes many changes to your lungs. Learn what's normal, what improves over time, and how lung testing can help.

What Do Pulmonary Function Tests (PFTs) Measure?

Pulmonary Function Tests (PFTs) are non-invasive tests that measure the function of your lungs. These tests provide many different measurements that can be used to determine how well your lungs are working.

Keep Your Lungs Healthy in the Heat

Learn about the effects that heat can have on those with long-term lung conditions, like COPD or asthma, and how they can stay safe in the summer heat.

Why Your Relationship with Your Respiratory Therapist Is Important

To learn more about why your relationship with your respiratory therapist is important, continue reading.

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Rhinitis vs. Sinusitis: Understanding the Difference and Common Symptoms

Rhinitis and sinusitis are similar conditions that both affect the respiratory system. It is important to be able to differentiate between the two so that you can recognize your symptoms and find effective treatment.

Sleep Apnea Myths Debunked

There are a lot of assumptions about sleep apnea that aren't true and can even be harmful for you to believe. Instead of believing what you hear from the grapevine, get the right information from the respiratory and sleep experts at ARC Network.

Preparing for Flu Season with a Respiratory Illness

For many people, getting the flu is more of an annoyance than a serious concern. For those with preexisting respiratory illnesses, the flu can be damaging to their already at-risk lungs and make their symptoms harsher.

How to Know When Stress, Anxiety, and Shortness of Breath Are Not "Just in Your Head"

Learn how stress and anxiety can affect breathing, when shortness of breath may point to a heart or lung issue, and when to get checked.

What Do Pulmonary Function Tests (PFTs) Measure?

Pulmonary Function Tests (PFTs) are non-invasive tests that measure the function of your lungs. These tests provide many different measurements that can be used to determine how well your lungs are working.

Show more from Blog

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