Pyrimethamine 2 mg/mL oral suspension
Ingredients
| Ingredient | Role | For 100 mL |
|---|---|---|
| Pyrimethamine | active | 200 mg |
| Sucrose 85% (w/v), simple syrup | vehicle | q.s. to 100 mL |
- Strength
- 2 mg/mL
- Starting material
- Pyrimethamine 25 mg tablets
- Container
- See the study
Amounts are ClinDose's arithmetic from the study's concentration; follow the study for the method.
Storage and beyond-use date
| Storage | BUD | Basis |
|---|---|---|
| Refrigerated | 60 days | Cited stability study. Duration supported by the cited stability study for this formula, container, and storage. |
| Room temperature | 60 days | Cited 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
de Paula RM, Santana VBS, Amorim MVP, et al.. Expiration Date of Extemporaneous Pyrimethamine Formulations for Treating Congenital Toxoplasmosis: Physicochemical and Microbiological Evaluation. ACS Omega. 2026;11(23):33582-33592. PMID 42326652. PMC13280895. License: CC BY (checked 2026-11-06). Read the article · DOI
For licensed clinicians. Use with clinical judgment.