SPL Set ID: 0e8b65f7-9d3b-42f2-8d7e-69b143365980

Sumatriptan injection USP contains sumatriptan succinate, a selective 5-HT 1B/1D receptor agonist. Sumatriptan succinate is chemically designated as 3-[2-(dimethyl amino) ethyl]-N-methyl-indole-5-methanesulfonamide succinate (1:1), and it has the following structure: The molecular formula is C 14 H 21 N 3 O 2 S•C 4 H 6 O 4 , representing a molecular weight of 413.5. Sumatriptan succinate is a white or almost white powder that is readily soluble in water and in saline. Sumatriptan injection USP is a clear, colorless to pale yellow, sterile, nonpyrogenic solution for subcutaneous injection. Each 0.5 mL of sumatriptan injection, 8 mg/mL contains 5.6 mg of sumatriptan succinate equivalent to 4 mg of sumatriptan and 3.8 mg of sodium chloride, USP in Water for Injection, USP. Each 0.5 mL of sumatriptan injection, 12 mg/mL contains 8.4 mg of sumatriptan succinate equivalent to 6 mg of sumatriptan 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. sumatriptan-structure