IVIG can also lengthen the time before a second attack in people who take it after the first attack.1
But IVIG is extremely expensive, not widely available, and not
considered practical for long-term treatment of MS. It sometimes may be used to
treat a severe
relapse if you either cannot take or do not respond to
The safety of IVIG during pregnancy and breast-feeding is not known.
Talk to your doctor if you are planning a pregnancy, if you are pregnant, or if
you are breast-feeding.