Breastfeeding and imitrex (sumatriptan) for migraine safe? if not, how long will it stay in my breastmilk after taking?

No info available: Sumatriptan (imitrex) is excreted into human breast milk. Caution is advised when considering the administration of sumatriptan to a nursing woman. The american academy of pediatrics has no position on the use of sumatriptan during breast-feeding. Infant exposure to sumatriptan can be minimized by avoiding breastfeeding for twelve hours after treatment with sumatriptan. (by the fda website).