List of H2 antagonists (H2 blockers) - Drugs.com
H2 antagonists block histamine-induced gastric acid secretion from the parietal cells of the gastric mucosa (lining of the stomach). H2 antagonists are used to treat gastroesophageal reflux disease , gastrointestinal ulcers and other gastrointestinal hypersecretory conditions.
List of Common Antihistamines + Uses & Side Effects - Drugs.com
2023年4月17日 · Antihistamines block histamine release from histamine-1 receptors and are mostly used to treat allergies or cold and flu symptoms, although some first-generation antihistamines (also called sedating antihistamines) may be used for other conditions, such as nausea or motion sickness.
Antihistamines General Statement (Monograph) - Drugs.com
Histamine binds to and activates specific receptors in the nose, eyes, respiratory tract, and skin, causing characteristic allergic signs and symptoms. The term antihistamine has historically been used to describe drugs that act as H 1 -receptor antagonists.
Seroquel: 7 things you should know - Drugs.com
2024年7月26日 · Seroquel (quetiapine) is known to act on numerous receptors in the brain but the exact way it works is unknown; however, some experts believe its mood-calming effects may be through the antagonism of dopamine and serotonin receptors. Seroquel may also affect histamine receptors (responsible for its side effect of sedation) and adrenergic alpha1 ...
Can you take hydroxyzine for anxiety and sleep? - Drugs.com
2023年2月13日 · Hydroxyzine has activity at the serotonergic (5HT2) receptors in the brain which may contribute to its anti-anxiety effect. Antihistamines which work at the H1 receptor, like hydroxyzine, can cause drowsiness, which may be helpful if …
Histamine Phosphate: Package Insert / Prescribing Info - Drugs.com
2024年3月25日 · For prick, puncture or scratch testing, the product is a sterile solution that contains 1 mg/mL histamine base (2.75 mg/mL Histamine Phosphate) in Water for Injection; it also contains Glycerin 50% (v/v) as viscosity agent and Phenol 0.4% as preservative.
Zantac Uses, Side Effects, Warnings & Recalls - Drugs.com
2024年5月29日 · Zantac belongs to a group of drugs called histamine-2 blockers. It works by reducing the amount of acid your stomach produces. Zantac has been used to treat and prevent ulcers in the stomach and intestines.
Azelastine Hydrochloride (EENT) (Monograph) - Drugs.com
2024年9月10日 · Inhibits the release of histamine and other mediators (e.g., leukotrienes, platelet activating factor [PAF]) involved in allergic reactions. May inhibit the accumulation of eosinophils at the site of allergic inflammation and prevent eosinophil degranulation.
Ophthalmic antihistamines and decongestants - Drugs.com
Antihistamines block histamine release from histamine-1 receptors and are used to treat the symptoms of an allergic reaction such as edema (swelling), itch, inflammation (redness), and watery eyes. Decongestants relieve congestion by narrowing (vasoconstricting) blood vessels.
Emadine: Package Insert / Prescribing Information - Drugs.com
2024年9月16日 · Emedastine is a relatively selective, histamine H1 antagonist. In vitro examinations of emedastine's affinity for histamine receptors (H1: Ki = 1.3 nM, H2: Ki = 49,067 nM, and H3: Ki = 12,430 nM) demonstrate relative selectivity for the H1-histamine receptor.