Dymista Side Effects Explained

Table of Contents

• Summary List of Dymista Side Effects
• Serious Dymista Side Effects
• Allergic Reaction to Dymista
• Dymista and Weight Gain
• Dymista and Anxiety
• Dymista for Treating Post-Nasal Drip
• Summary

Summary List of Dymista Side Effects

There are side effects associated with using Dymista. Not everyone will experience them, but it's always good to be aware of the most common symptoms, as well how to spot the signs of a serious allergic reaction in case of emergencies.  

Very common (can affect more than 1 in 10 people): 

• Nosebleeds 
• Common (can affect up to 1 in 10 people): 
• Headache 
• Temporary weird taste in the back of your throat or mouth 
• Unusual smell 

Uncommon (can affect up to 1 in 100 people): 

• Nasal irritation including a dry nose 
• Cough 
• Dry or irritated throat 

Rare (can affect up to 1 in 1,000 people): 

• Dry mouth 

Very Rare (can affect up to 1 in 10,000 people): 

• Drowsiness 
• Dizziness 
• Eye changes - cataract, glaucoma, increased pressure where you may have vision loss and/or red and painful eyes (reported following prolonged treatment with fluticasone propionate nasal sprays). 
• Internal nose damage - skin and mucous membrane  
• Nausea 
• Rash 
• Itchy skin or red, raised itchy bumps 
• Feeling weary, fatigued or weak 
• Bronchospasm - narrowing of the airways in the lungs 

Serious Dymista Side Effects

Less than 1 in 10,000 people are known to experience a serious side effect, meaning most people will not experience them.  

You should stop using Dymista and see your doctor as soon as possible if you do notice any of the following:  

• Breathing problems – swallowing difficulties, gasping or choking for air  
• Vision changes – blurred or increased pressure in your eye 
• Damage and sores to the inside of your nose

Allergic Reaction to Dymista

Allergic reactions to Dymista are very rare.   

Fluticasone, which is the active ingredient in Dymista nasal spray, can cause anaphylaxis in some people. In the unlikely event of a reaction, you should stop using Dymista immediately. 

Call 999 and seek urgent medical attention if you experience: 

• Difficulty breathing or swallowing  
• Swelling of the face, mouth, lips, tongue or throat 
• Sudden severe skin rash 

Dymista and Weight Gain

Weight gain is not typically associated with Dymista nasal spray use.  

The amount of fluticasone that enters the body is much lower than if it were taken orally or as an injection, which makes the likelihood of gaining weight very low.  

However, there is a possibility that when used long-term or in higher doses, weight gain can occur. Long-term steroid use is associated with weight gain, but in this case unlikely, as it is administered as a nasal spray and not orally.  

You should raise any concerns with your doctor about weight gain whilst using Dymista, so they can assess your usage.

Dymista and Anxiety

Dymista does not cause anxiety and is not listed as a known side effect. 

The risk of experiencing mood or psychological changes is extremely low for most people. Some of the associated symptoms, such as dizziness, fast breathing, and increased heart rate, which can be very similar to anxiety symptoms, may affect a small number of patients.

Dymista for Treating Post-Nasal Drip

Dymista is effective in treating post-nasal drip caused by allergic rhinitis. 

When allergies are present, mucus from your nose or sinuses can drip down the back of your throat. This can lead to your nose becoming blocked or runny, as well as leave you with a sore throat or cough.  

Dymista contains both an antihistamine called Azelastine and the steroid Fluticasone. Azelastine helps with post-nasal drip by blocking histamine, the substance released in response to the allergen, and fluticasone helps to reduce inflammation and relieve congestion and irritation in the nasal passages that can contribute to post-nasal drip. 

It is administered in the same way as treating hay fever symptoms, spraying once into each nostril morning and evening.

Summary

Dymista is a scientifically proven prescription nasal spray used to treat hay fever and allergy symptoms like sneezing, congestion, and a runny nose, combining azelastine (an antihistamine) and fluticasone (a corticosteroid).  

While it is generally well-tolerated by most people, common side effects include nasal irritation, headaches, and dry mouth, which tend to be mild. Rarely, more serious side effects like allergic reactions, vision changes, or nasal irritation may occur.  

It is important to follow safety guidelines and consult a doctor, especially for those who are pregnant or breastfeeding.  

It’s an easy and quick process to buy Dymista Nasal Spray online from Chemist Click. Fill out our short clinical questionnaire, and if approved, your treatment will be dispatched and delivered to your door on our next-day delivery service.  

Sources

• Medicine.org.uk (n.d). Dymista Nasal Spray. Retrieved 18th February 2025, from: https://www.medicines.org.uk/emc/files/pil.9450.pdf  

Whilst all of our content is written and reviewed by healthcare professionals, it is not intended to be substituted for or used as medical advice. If you have any questions or concerns about your health, please speak to your doctor.