hay fever

Diphenhydramine (Syntedril) 是第一代具有抗胆碱能作用的H1 受体拮抗剂，它能透过血脑屏障。

Mometasone furoate (Sch32088) 是糖皮质激素受体激动剂，具有抗炎和抗过敏作用。它是皮质固醇类试剂，动物模型中，可局部应用于气道炎症、慢性皮肤湿疹、哮喘。

Mizolastine (SL 850324) 是组胺 H1 受体拮抗剂，IC50为 47 nM。它用于治疗过敏反应，如花粉热和荨麻疹等。

Dexchlorpheniramine Maleate (S-(+)-Chlorpheniramine maleate salt) 是一种具有抗胆碱能特性的抗组胺药，用于治疗花粉热或荨麻疹等过敏性疾病。

Chlorpheniramine maleate (NCI-C55265) 是一种组胺 H1 拮抗剂，IC50为12 nM，用于过敏反应、花粉热、鼻炎、荨麻疹和哮喘。

Fexofenadine (Carboxyterfenadine) 是一种抗组胺药物，用于治疗过敏症状，如鼻塞、花粉热和荨麻疹。与第一代抗组胺药相比，它通过血脑屏障并引起镇静的能力较差。

Diphenylpyraline hydrochloride (4-Diphenylmethoxy-1-methylpiperidine hydrochloride) 是一种组胺 H1 受体的拮抗剂，抑制多巴胺的吸收。它是可口服的抗组胺试剂，具有抗胆碱和抗过敏作用，可用于缓解过敏性疾病，如鼻炎、花粉热和瘙痒性皮肤疾病等。

Carbinoxamine, an anticholinergic and antihistamine agent, is used for hay fever, angioedema, vasomotor rhinitis, mild urticaria, dermatographism and allergic conjunctivitis. It is a histamine antagonist, specifically an H1-antagonist.

Mizolastine dihydrochloride is a histamine H1-receptor antagonist (IC50: 47 nM). It also used in the treatment of hay fever, hives, and other allergic reactions.

Dexbrompheniramine is an antihistamine with anticholinergic properties. It is used to treat allergic diseases such as hay fever or urticaria. It can compete with histamine for H1 receptor sites on effector cells of the gastrointestinal tract, blood vessel

Thonzylamine (neohetramine) 是可口服的H1组胺受体拮抗剂，具有抗组胺和抗过敏特性，可用于鼻充血、过敏性结膜炎和其他过敏性疾病的研究。

(E Z)-Ensifentrine is a potent and selective PDE3 4 inhibitor. (E Z)-Ensifentrine acts as a long-acting inhibitor of the phosphodiesterase enzymes PDE-3 and PDE-4, producing both bronchodilator and antiinflammatory effects. It is being developed by Verona Pharma as a potential treatment for asthma and hay fever, and is currently in clinical trials.

Dexbrompheniramine为口服活性H1受体拮抗剂(H1 receptor)，具有抗组胺药属性，能够减轻天然化学组胺的作用。该化合物适用于花粉热与荨麻疹的研究。