United States / USD Country & Currency
Country
United States
Currency
US Dollars
Save
Country
Australia
Gibraltar
Hong Kong
Malta
Northern Ireland
Puerto Rico
Scotland
Singapore
Switzerland
United Kingdom
United States
Currency
US Dollars
GB Pounds
AU Dollars
Euro
Explore our range Categories
Ask us a question 877-271-6591 or 800-868-9064

Shipping delays due to Covid-19 Virus

Please fill the form to receive updates when we can ship your order.

Leukotriene Receptor Antagonists

Manage chronic asthma and alleviate allergic rhinitis symptoms with leukotriene receptor antagonist medications (LTRA). 

How do LTRAs work?

Inflammation of the airways is characterised by the presence of inflammatory white blood cells like mast cells and eosinophils which are involved in immune and inflammatory responses and produce chemicals that control these responses. Leukotrienes are one such inflammatory mediator and overproduction of leukotrienes is directly involved in causing symptoms of asthma in the airways and allergy in nasal passages. Leukotrienes are synthesised in response to several triggers, including an allergic reaction, physical stimulus like cold, which can in turn both trigger asthma. A leukotriene receptor antagonist (LTRA) like montelukast binds to specific leukotriene receptors on cells of the bronchioles and also other cells like macrophages that migrate to the airways, and this blocks the action of leukotrienes.
These LTRA medications are taken orally in tablet form to prevent leukotriene-mediated inflammation in asthma and allergic rhinitis and are slow-acting but long-lasting in their action.

LTRAs for asthma

When leukotrienes are released into the airways in response to an asthma trigger, they directly cause contraction of the smooth muscle of the bronchioles; also increased mucus production by secreting cells of the airways. These leukotriene-mediated effects cause bronchoconstriction or narrowing of the airways, inflammation, swelling and mucous secretion. LTRA medications are used to help manage chronic asthma and prevent exacerbations and asthma attack, but not to treat asthma attack. They are particularly useful for nocturnal and exercise-induced asthma because they are long-acting.

LTRAs for allergy

When leukotrienes are released into the nasal passages after exposure to an allergen like pollen or house dust mites they cause irritation and inflammation and this leads to symptoms of allergic rhinitis, including nasal congestion, runny itchy nose and sneezing.
LTRA medications are used to treat seasonal allergy to pollen, also known as hay fever, and perennial allergy, such as to animal fur, mould and house dust mites, to relieve symptoms of allergic rhinitis.


Read more
5 Stars

Testimonials

Hear from more than 1000 happy customers!
Heart Icon
"Yes I would definitely like you to post my responses to guys online for your site. There are so many out there that dont have the resources to get what they need and also there are alot of scammers out there pretending to provide the services your company actually does making many unsure of whether or not to trust. Honestly, I have searched through many off these sites and yours is the only one that I do trust because you guys have always been great, not only with providing authentic products but also with making people feel welcomed and cared for as well. I hope my statements as well as others that shop with you can reach people that are not familiar with you guys and have a positive impact on them. Thanks again."
Diana TN, USA • October 2021
Heart Icon
"Isn’t it funny? I don’t even know you all…. But, I DO know that you are life-savers. I silently thank you all the time. Keep up the good work."
Linda TX, USA • October 2020
Heart Icon
"Thank you for your excellent website and product selection!"
Elaine CA, USA • March 2023
Heart Icon
"I receive EXCELLENT, prompt and reliable service. I would recommend this Pharmacy with 5 stars for excellence"
John SD, USA • February 2020
Heart Icon
"Thank you for your wonderful service. I am writing to say I was very impressed with your professional care, quick delivery and honesty. Hats off to your team. I will certainly be back to order in the future."
Julian UK • March 2023
Heart Icon
"I want to say a huge thank you for the excellent communications from your company which helped so much during a very anxious time. I cannot praise the company highly enough."
Valerie UK • October 2020
Heart Icon
""Great Pharmacy! Always trustworthy, dependable friends, love you guys!""
Victoria CO, USA • February 2021
Heart Icon
""Great service in a time of corona""
Johan Netherlands • February 2021
Heart Icon
"Thank you so much for being there for me. I have never had a problem with shipping from your business, even during the covid era. Your product has been a godsend to me . And affordable as well. Again, thank you all for what you do to make things affordable"
Rebecca TX, USA • October 2021
Heart Icon
""I will continue to order from you and recommend how wonderful your service is! ""
Margaret OR, USA • February 2021
 

This website uses cookies. View our policy and select your preferences here