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Does rituximab affect fertility, pregnancy or breastfeeding?

We don't yet know how rituximab might affect an unborn baby. Current guidelines advise that you take care to avoid becoming pregnant for at least six months after treatment.

However, if you do have a rituximab infusion in early pregnancy (for example, before your pregnancy is confirmed) then it's unlikely to be harmful.

The guidelines now state there's no need for men to stop rituximab treatment when trying to father a baby.

Rituximab is an antibody that can be passed on in breast milk and the effects on the baby aren't yet known. Therefore you shouldn't have rituximab treatments if you're breastfeeding.


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