Drug Information for IMITREX (sumatriptan succinate) InjectionFor Subcutaneous Use Only. (GlaxoSmithKline LLC): DESCRIPTION

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  • IMITREX (sumatriptan succinate) Injection is a selective 5-hydroxytryptamine1 receptor subtype agonist. Sumatriptan succinate is chemically designated as 3-[2-(dimethylamino) ethyl]-N-methyl-indole-5-methanesulfonamide succinate (1:1), and it has the following structure:

    The empirical formula is C14H21N3O2S•C4H6O4, representing a molecular weight of 413.5.

    Sumatriptan succinate is a white to off-white powder that is readily soluble in water and in saline.

    IMITREX Injection is a clear, colorless to pale yellow, sterile, nonpyrogenic solution for subcutaneous injection. Each 0.5 mL of IMITREX Injection 8 mg/mL solution contains 4 mg of sumatriptan (base) as the succinate salt and 3.8 mg of sodium chloride, USP in Water for Injection, USP. Each 0.5 mL of IMITREX Injection 12 mg/mL solution contains 6 mg of sumatriptan (base) as the succinate salt and 3.5 mg of sodium chloride, USP in Water for Injection, USP. The pH range of both solutions is approximately 4.2 to 5.3. The osmolality of both injections is 291 mOsmol.

  • Drug Information Provided by National Library of Medicine (NLM).
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