Answer
No. It acts against susceptible bacteria and has specialist combination use against the parasite that causes toxoplasmosis; it does not treat viruses.
Sources for this answer
- Sulfadiazine 500mg Tablets BP — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.