Literature: open-access stability study

Oseltamivir 15 mg/mL oral solution

Ingredients

IngredientRoleFor 100 mL
Oseltamivir (as phosphate)active1.5 g
Sodium benzoatepreservativeSee the study
Purified watervehicleq.s. to 100 mL
Strength
15 mg/mL
Starting material
Oseltamivir phosphate bulk powder (API)
Container
Type II amber glass bottles (125 mL), filled to allow for expansion on freezing
  • Stored frozen up to 75 days, then refrigerated up to 10 days after thawing.

Amounts are ClinDose's arithmetic from the study's concentration; follow the study for the method.

Storage and beyond-use date

StorageBUDBasis
Refrigerated10 daysCited stability study. Duration supported by the cited stability study for this formula, container, and storage.
Frozen75 daysCited stability study. Duration supported by the cited stability study for this formula, container, and storage.

Only the storage conditions the source covers are listed. Use the BUD assistant for other cases. The BUD may not be later than any component's expiration date. Verify against the current official USP chapter.

Ingredient checks

No FDA compounding list or NIOSH flags for the active ingredient.

Source

Ramirez JCR, Sáez AG, Madrid MEM, Viney AC, Herreros JMA, Rojo PA. Stability Study of a Frozen Oseltamivir 15 mg/mL Oral Solution in Amber Glass Bottles. Pharmaceutics. 2026;18(9):1130. PMID 42797305. PMC13610113. License: CC BY (checked 2026-11-06). Read the article · DOI

For licensed clinicians. Use with clinical judgment.