Antiallergics
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Antiallergics
Antiallergic APIs include antihistamines (H1/H2 blockers), mast-cell stabilizers, anti-anaphylactic agents, and leukotriene inhibitors. They are used for allergic rhinitis, urticaria, eczema, asthma, and seasonal or food-related allergies. Their rapid onset, long-lasting effects, and safety profiles make them essential in respiratory and dermatological preparations.
Allergic Mediator Antagonists
Allergic mediator antagonists are APIs designed to block or modulate biochemical mediators responsible for allergic reactions, including leukotrienes, prostaglandins, platelet-activating factor, and cytokines. These agents inhibit downstream inflammatory pathways, reducing bronchoconstriction, vascular permeability, tissue swelling, and pruritus. They are widely used for asthma, allergic rhinitis, atopic dermatitis, urticaria, and food-related allergic responses. Common APIs include leukotriene receptor antagonists, 5-lipoxygenase inhibitors, mast cell stabilizers, and biologics targeting specific immune modulators. Their targeted pharmacological action improves symptom control, reduces exacerbation frequency, and minimizes reliance on systemic corticosteroids. Allergic mediator antagonists play an essential role in long-term allergy management and personalized immunotherapy.
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CAS No.:100299-08-9
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CAS No.:116649-85-5
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Antihistamines
Antihistamines are APIs that block histamine H1 or H2 receptors to relieve symptoms triggered by allergic reactions, including sneezing, rhinorrhea, urticaria, conjunctival irritation, and pruritus. First-generation antihistamines penetrate the central nervous system and may cause sedation, while second-generation agents offer improved selectivity, minimal drowsiness, and longer duration of action. These APIs are widely used in allergic rhinitis, chronic urticaria, seasonal allergies, insect bite reactions, and dermatologic disorders. Their formulations include tablets, syrups, dissolvable films, injectables, and ophthalmic or nasal preparations. With strong clinical effectiveness and broad safety across age groups, antihistamines remain foundational medications in allergy management.
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CAS No.:1176-08-5
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CAS No.:147-24-0
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CAS No.:17693-51-5
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CAS No.:129-71-5
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Other Antiallergic Drugs
Other antiallergic drugs comprise diverse APIs that complement traditional antihistamines and mediator antagonists by targeting additional immunologic and inflammatory pathways. These agents include corticosteroid-sparing immunomodulators, mast cell stabilizers, anti-IgE therapies, JAK inhibitors, and drugs that suppress eosinophilic activation. They are used in conditions such as severe asthma, atopic dermatitis, allergic conjunctivitis, anaphylaxis prevention, and chronic urticaria unresponsive to standard therapy. Their mechanisms involve inhibiting cytokine release, stabilizing immune cells, reducing inflammatory infiltration, or modulating hypersensitivity responses. Available in topical, inhaled, oral, and injectable forms, these APIs provide advanced options for patients requiring stronger or more targeted allergy control.
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CAS No.:35423-51-9
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CAS No.:58712-69-9
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