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Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies.
- H1 antagonist - Wikipedia
Medical uses. H 1 -antihistamines are clinically used in the...
- Antihistamine - Simple English Wikipedia, the free encyclopedia
Antihistamines are drugs which treat allergic rhinitis and...
- H1 antagonist - Wikipedia
Apr 17, 2023 · What are antihistamines used for? Antihistamines can help relieve the symptoms of an allergic reaction, such as: a rash. itchiness. redness (inflammation) swelling ( edema) red and watery eyes. a runny nose. sneezing. This makes antihistamines very effective for the treatment of: allergic rhinitis. colds. flu. food allergies. hay fever.
- Antihistamines are very good at relieving symptoms of an allergic reaction, such as: 1. edema (swelling) 2. inflammation (redness) 3. itch 4. rash...
- Antihistamines can be classified into two main categories: 1. first-generation antihistamines 2. second-generation antihistamines.First-generation...
- Side effects of first-generation antihistamines may include: 1. abdominal pain 2. blurred or double vision 3. constipation 4. dry eyes 5. a dry mou...
Synthesis and metabolism. Histamine is derived from the decarboxylation of the amino acid histidine, a reaction catalyzed by the enzyme L -histidine decarboxylase. It is a hydrophilic vasoactive amine . Conversion of histidine to histamine by histidine decarboxylase.
Jul 13, 2020 · Antihistamines are a class of drugs commonly used to treat symptoms of allergies. These drugs help treat conditions caused by too much histamine, a chemical created by your body’s immune system. Antihistamines are most commonly used by people who have allergic reactions to pollen and other allergens. They are also used to treat a variety of ...
May 17, 2024 · Antihistamine, any of a group of synthetic drugs that selectively counteract the pharmacological effects of histamine, following its release from certain large cells (mast cells) within the body. Antihistamines replace histamine at one or the other of the two receptor sites at which it becomes.
