Drugs Affecting Respiratory System. Antihistamines. Drugs that directly compete with histamine for specific receptor sites Two histamine receptors H 1 (histamine 1 ) H 2 (histamine 2 ). Histamine-mediated disorders Allergic rhinitis (hay fever, mould and dust allergies) Anaphylaxis
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Drugs that directly compete with histamine for specific receptor sites
They are much less likely to have side effects of sedation and dry mouth
What is nasal congestion?
Nervousness Local mucosal dryness
Insomnia and irritation
(systemic effects due to adrenergic stimulation of theheart, blood vessels, and CNS)
IN asthmatics inhalers are used to deliver drugs more effectively with minimal side effects
Relievers have to be taken when they get worsening of asthma
Preventers should be used daily for it to be effective
Patients should be clearly educated on this …