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Antihistamine APIs

Antihistamine Drugs Active Pharmaceutical Ingredients

Inhibit the action of histamine with Spectrum's wide selection of antihistamine drugs active pharmaceutical ingredients which work by blocking it from attaching to histamine receptors. Often used to alleviate symptoms of the common cold and allergic rhinitis, Brompheniramine maleate is a popular antihistamine.

Spectrum specializes in providing the top antihistamine drugs active pharmaceutical ingredients but if you do not see the product, grade or form of the ingredient you require, just contact our chemical specialist at 800-772-8786. cGMP Certified Facilities and 45,000 chemicals - Trust Your Ingredients!

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  • Brompheniramine Maleate, USP

    BR167 | 980-71-2 | C16H19BrN2•C4H4O4 | Spectrum Chemical

    Brompheniramine Maleate, USP is an antihistamine used to alleviate symptoms of the common cold and allergic rhinitis. All Spectrum Chemical USP grade products are manufactured, packaged ...

  • Carbinoxamine Maleate, USP

    C3389 | 3505-38-2 | C16H19CIN2O•C4H4O4 | Spectrum Chemical

    Carbinoxamine Maleate, USP is a antihistamine used for treating allergy symptoms. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing ...

  • Chlorpheniramine Maleate, USP

    CH133 | 113-92-8 | C16H19CIN2•C4H4O4 | Spectrum Chemical

    Chlorpheniramine Maleate, USP is a first generation alkylamine antihistamine that is prevents the appearance of allergic conditions. All Spectrum Chemical USP products are manufactured, ...

  • Cyproheptadine Hydrochloride, USP

    C1968 | 41354-29-4 | C21H21N•HCl•11/2H2O | Spectrum Chemical

    Cyproheptadine Hydrochloride, USP, a first-generation antihistamine, is used to treat allergic reactions. All Spectrum Chemical USP grade products are manufactured, packaged and stored ...

  • Dexchlorpheniramine Maleate, USP

    DE127 | 2438-32-6 | C16H19ClN2•C4H4O4 | Spectrum Chemical

    Dexchlorpheniramine Maleate, USP is an antihistamine with anticholinergic properties that is used to treat allergies. All Spectrum Chemical USP grade products are manufactured, packaged ...

  • Dimenhydrinate, USP

    DI127 | 523-87-5 | C17H21NO•C7H7ClN4O2 | Spectrum Chemical

    Dimenhydrinate, USP is used to prevent and treat nausea, vomiting, and dizziness caused by motion sickness. All Spectrum Chemical USP grade products are manufactured, packaged and stored ...

  • Diphenhydramine Hydrochloride, USP

    DI160 | 147-24-0 | C17H21NO•HCl | Spectrum Chemical

    Diphenhydramine Hydrochloride, USP is an antihistamine that includes sedative attributes to treat allergies. All Spectrum Chemical USP grade products are manufactured, packaged and stored ...

  • Hydroxyzine Hydrochloride, USP

    HY125 | 2192-20-3 | C21H27ClN2O2•2HCl | Spectrum Chemical

    Hydroxyzine Hydrochloride, USP is an antihistamine and has strong anxiolytic and antipsychotic properties. All Spectrum Chemical USP grade products are manufactured, packaged and stored ...

  • Hydroxyzine Pamoate, USP

    H1103 | 10246-75-0 | C21H27ClN2O2•C23H16O6 | Spectrum Chemical

    Hydroxyzine Pamoate, USP is an antihistamine with anticholinergic (drying) and sedative properties. All Spectrum Chemical USP grade products are manufactured, packaged and stored under ...

  • Loratadine, USP

    L3010 | 79794-75-5 | C22H23N2O2Cl | Spectrum Chemical

    Loratadine, USP is an antihistamine that treats the typical symptoms of allergies. All Spectrum Chemical USP products are manufactured, packaged and stored under current Good Manufacturing ...

  • Meclizine Hydrochloride, USP

    M3985 | 1104-22-9 | C25H27ClN2•2HCl | Spectrum Chemical

    Meclizine Hydrochloride, USP

  • Promethazine Hydrochloride, USP

    PR123 | 58-33-3 | C17H20N2S•HCl | Spectrum Chemical

    Promethazine Hydrochloride, USP is a neuroleptic medication with strong sedative effects used to reduce motion sickness because of its anticholinergic and antiemetic properties. All ...

  • Pyrilamine Maleate, USP

    PY105 | 59-33-6 | C17H23N3O•C4H4O4 | Spectrum Chemical

    Pyrilamine Maleate, USP is a first generation antihistamine, targeting the H1 receptor, used to treat the common cold. All Spectrum Chemical USP grade products are manufactured, packaged ...