H1 receptor
Antihistamine binding site
H1 receptor refers to a type of histamine receptor found throughout the body, particularly in smooth muscle, blood vessels, and the brain.
When histamine binds to H1 receptors, it triggers allergic responses—itching, sneezing, swelling, and increased mucus production.
Antihistamines like diphenhydramine and loratadine work by blocking H1 receptors: The medication targets H1 receptors to reduce hay fever symptoms.
- first generationEarliest in a line
- allergyAdverse immune response
- seasonal allergiesReaction to airborne pollen
- BenadrylOver-the-counter antihistamine brand
- drowsyNearly falling asleep
itch · skin rash · hives · sneezing · watery eyes · itchy eyes · neurotransmitter · over the counter · nasal spray · sedation · wakefulness · brain · mast cell · inflammation · wheal · flare · hay fever · pollen
H1 receptorantihistamine
Drug blocking allergic response
diphenhydramine · cetirizine · loratadine · chlorpheniramine · histamine
receptor, receptors, receive, receiver, receivers, receiving, received, receipt, receipts