Literature: open-access stability study

Methadone 10 mg/mL oral solution

Ingredients

IngredientRoleFor 100 mL
Methadone hydrochlorideactive1 g
Methylparaben and propylparaben (optional)preservativeSee the study
Aqueous vehicle (see the study)vehicleq.s. to 100 mL
Strength
10 mg/mL
Starting material
Methadone hydrochloride bulk powder
Container
Amber glass bottles (closed and in daily use)
  • Formulations with and without parabens performed the same.

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

Storage and beyond-use date

StorageBUDBasis
Refrigerated91 daysCited stability study. Duration supported by the cited stability study for this formula, container, and storage.
Room temperature91 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

Álvaro-Alonso EA, Lorenzo MP, Gonzalez-Prieto A, Izquierdo-García E, Escobar-Rodríguez I, Aguilar-Ros A. Physicochemical and Microbiological Stability of Two Oral Solutions of Methadone Hydrochloride 10 mg/mL. Molecules. 2022;27(9):2812. PMID 35566167. PMC9105510. License: CC BY (checked 2026-11-06). Read the article · DOI

For licensed clinicians. Use with clinical judgment.