Synovium® Airplus Liquid – Natural Equine Respiratory Supplement
The No.1 Natural Respiratory Supplement for Horses
Synovium® Airplus Liquid is an innovative horse respiratory supplement, carefully developed by leading veterinarians. Its unique blend of Potassium Iodide, Eucalyptus Oil, Rosemary, Thyme, and Aniseed is designed to support clear, easy breathing and long-term respiratory health in horses and ponies.
Unlike many other breathing aids, Airplus Liquid contains Potassium Iodide, proven to help clear mucus from the airways, offering lasting relief and improved lung function. Safe for long-term use and competition-approved, this trusted supplement keeps your horse breathing freely, whether in training, competition, or day-to-day wellbeing.
Key Benefits of Synovium® Airplus Liquid
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Supports clear airways – Potassium Iodide helps clear mucus and congestion naturally
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Helps relieve coughs and irritation – Eucalyptus helps reduce cough symptoms within days
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Assists nasal congestion – Eucalyptus, thyme & rosemary support freer breathing
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Aids soothing mucous membranes – Helps reduce swelling and inflammation in the airways
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Long-lasting respiratory support – Safe for daily, long-term use
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Vet-developed & competition safe – Ingredients not listed on the FEI Clean Sport prohibited list
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Eco-conscious option – Now available in 5 litres with free shipping & less plastic waste
What are people saying about Synovium Airplus Liquid, best horse respiratory supplement for horses by vets?
Customer Testimonial
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“I am so impressed with Airplus Liquid, I highly recommend! I have tried so many different respiratory supplements and this one is by far the best. My horse’s breathing has improved so much since starting it.”
— Tessa, Verified Customer
We are overwhelmed with the great feedback from our customers on this supplement, so thank you from all of the team at Synovium Horse Health.
Why Your Horse Will Love Airplus Liquid
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🐴 Breathe easier – Keeps horses comfortable and free from congestion
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🏆 Competition safe – Peace of mind knowing it’s FEI Clean Sport compliant
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💨 Fast-acting relief – Notice improvements in cough and breathing within days
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🌿 Natural and gentle – Herbal ingredients safe for long-term daily use
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🌎 Sustainable choice – 5L option saves on plastic and shipping costs
Product Sizes
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960ml – convenient daily use
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5 Litre – eco-friendly bulk size with free shipping
How do I know if I should be feeding a respiratory supplement to my horse, like Synovium Airplus Liquid? Read this article from our leading vets on the horse respiratory system and COPD.
Is Airplus Liquid safe for horses with metabolic conditions? Yes, read more in our vets article about sugar levels.
❓ How long before I see results?
Many owners report noticeable improvements in cough and breathing within just a few days of use but it can take 2-6 weeks to see the full benefis. Some horse’s cough can initially get worse as the supplement works to clear the mucus build up from the lungs but this should clear after 5-7 days and an improvement seen. Always seek advice from your vet if you are worried about the health of your horse.


I am so impressed with Airplus Liquid, I highly recommend! I have tried so many different respiratory supplements and this one is by far the best. My horse has breathing issues but since I have put him on this liquid his breathing has improved so much. I can’t quite believe it. Thank you so much.
My elderly Shetland pony has bad respiratory problems This supplement has helped her a lot,so glad I found it.Have tried others but this is the only one that has helped Great product
Has helped my horse tremendously with his allergies, he used to cough when warming up, but now no coughing at all. Would highly recommend.
Excellent product, so good I have recommended it to several friend’s that have also made purchases
Great stuff
Worth the money, this product is amazing! My horse was struggling to breathe, tried all sorts to fix her. Then tried Airplus liquid, I can’t believe how much this is helping.
Fab product works well
Wouldn’t be without this
Great product , helps my 16 year old donkey with wheezing and coughing , she loves the taste !
This product has really helped my horse.