ODOBGYNDECODED

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Anti-D immunoglobulin

Pregnancy & gynaecology-specific. Every dose row is source-referenced; verify against institutional protocols.

Anti-D immunoglobulinHuman immunoglobulin

Regimens checked: 2026-10-17. Each indication has its own preparation, limits and safety checks.

Anti-D immunoglobulin: indication-specific regimens
IndicationDoseRouteFrequencyDuration / preparationMaximumMonitoring / cautions
Non-sensitised RhD-negative pregnancy with an indication for routine antenatal prophylaxis
300 micrograms (1500 IU)
IM or IV for this Rhophylac product only
Once at 28–30 weeks
One routine antenatal dose; sensitising events and birth are assessed separately · Ready-to-use prefilled syringe 300 micrograms/2 mL (1500 IU/2 mL); bring to room temperature and give slowly. Verify product, RhD status and antibody screen; do not confuse with newborn vitamin K
  • Give to the mother, not the infant. Early-pregnancy losses have separate gestation/management criteria; do not apply the routine 28-week row to every miscarriage.
One 300-microgram syringe covers approximately 15 mL fetal RhD-positive red cells; additional dose depends on measured FMH, not an arbitrary universal ceiling
Monitor
  • Identity/product checks, prior sensitisation, allergic reactions and FMH assessment; observe after administration
Contraindications / cautions
  • RhD-positive mother or established immune anti-D: prophylaxis is not treatment; IM route unsuitable with severe thrombocytopenia/coagulopathy
Non-sensitised RhD-negative mother after an RhD-positive birth
300 micrograms (1500 IU); increase if testing shows a larger fetomaternal haemorrhage
IM or IV for this Rhophylac product only
Once as soon as possible, ideally within 72 hours of birth
Postnatal episode; if >72 hours have elapsed, do not withhold—give as soon as possible and obtain specialist advice · Ready-to-use prefilled syringe 300 micrograms/2 mL (1500 IU/2 mL); bring to room temperature and give slowly. Verify product, RhD status and antibody screen; do not confuse with newborn vitamin K
  • Give to the mother, not the infant. Early-pregnancy losses have separate gestation/management criteria; do not apply the routine 28-week row to every miscarriage.
One 300-microgram syringe covers approximately 15 mL fetal RhD-positive red cells; additional dose depends on measured FMH, not an arbitrary universal ceiling
Monitor
  • Identity/product checks, prior sensitisation, allergic reactions and FMH assessment; observe after administration
Contraindications / cautions
  • RhD-positive mother or established immune anti-D: prophylaxis is not treatment; IM route unsuitable with severe thrombocytopenia/coagulopathy
Pregnancy safety
For eligible non-sensitised RhD-negative mothers; never a universal injection for every pregnancy
Lactation
Postnatal maternal prophylaxis is used when indicated