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Related indications for clinical use include angioedema, allergic reactions to insect bites, food and drug allergies, and anaphylactic shock. [ citation needed ] Chloropyramine is known as a competitive reversible H 1 receptor antagonist (also known as an H 1 inverse agonist), meaning that it exerts its pharmacological action by competing with ...
The itching associated with flea bites can be treated with anti-itch creams, usually antihistamines or hydrocortisone. [1] Calamine lotion has been shown to be effective for itching. [ 2 ]
H 1-antihistamines work by binding to histamine H 1 receptors in mast cells, smooth muscle, and endothelium in the body as well as in the tuberomammillary nucleus in the brain. Antihistamines that target the histamine H 1-receptor are used to treat allergic reactions in the nose (e.g., itching, runny nose, and
Antihistamines are commonly used to treat itching associated with allergies. Generalized itch, or itching across the whole body, can be a symptom of a dermatological disorder or an underlying systemic problem. [13] Some systemic diseases can that cause generalized itch include diabetes, hypothyroidism, kidney diseases and liver diseases.
Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies. [5] This includes allergic rhinitis (hay fever) and hives. [5] It is also available in drug combinations such as loratadine/pseudoephedrine, in which it is combined with pseudoephedrine, a nasal decongestant. [5] It is taken orally. [5]
Clemastine, also known as meclastin, is a first-generation H1 histamine antagonist (antihistamine) with anticholinergic properties (drying) and sedative side effects. [1] Like all first-generation antihistamines, it is sedating. [2] [3] Patented in 1960, it came into medical use in 1967. [4]