Synagis (Palivizumab)
Monoclonal antibody to prevent RSV in high-risk infants · AstraZeneca
Prevents
Dosing schedules
High-risk children under 2 years: 1 dose every month during the RSV season
For: People with chronic conditions
| Dose | Age | Minimum interval from previous dose |
|---|---|---|
| Dose 1 (Synagis) | At the start of the RSV season | – |
| Dose 2 (Synagis) | One month after the previous dose | 30 days |
| Dose 3 (Synagis) | One month after the previous dose | 30 days |
| Dose 4 (Synagis) | One month after the previous dose | 30 days |
| Dose 5 (Synagis) | One month after the previous dose | 30 days |
Dose 15 mg/kg. The course can be repeated in the second year of life.
Source: Recommended vaccination schedules for all ages in Vietnam (2026 edition). Reviewed on 07/10/2026.
Special precautions
5 doses, 1 dose per month throughout the RSV season, for premature infants and children with congenital heart disease.
Pregnancy and breastfeeding
For high-risk infants only