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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.
While many causes of lower left abdominal pain can be managed at home through lifestyle changes and over-the-counter remedies, persistent or severe symptoms require professional medical evaluation ...
Over-the-counter vitamin C, 1000 mg daily, increases histamine degradation and removal. [8] [further explanation needed] While cromoglycate, which prevents histamine from being released from mast cells, is used topically in rhinitis and asthma, it is not effective orally for treating chronic urticaria. [citation needed]
H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.
6. Purple spots on your hands and feet. These could be a sign of a bacterial infection of the heart, Kroshinsky said. 7. A circular-shaped rash in an area where Lyme disease is endemic.
When a stress rash manifests as hives, it looks like raised, itchy bumps on the skin that may be red or pink. Hives can be a collection of individual bumps or connected, making one large bump.
Treatment Can resolve without treatment, but may require anti-histamines or corticosteroids. One of the most prevalent forms of adverse drug reactions is cutaneous reactions, [ 1 ] with drug-induced urticaria ranking as the second most common type, preceded by drug-induced exanthems . [ 2 ]
Cholinergic urticaria typically presents with a number of small papular hives all over the body, that involve cutaneous inflammation (wheals) and severe nerve pain, which usually develops in response to exercise, bathing, staying in a heated environment, spicy foods, or emotional stress.