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Pregnancy: There are no adequate and well-controlled studies evaluating the use of sumatriptan in pregnant women. Sumatriptan should be used during pregnancy only if the potential benefit justifies the risk to the fetus.
Lactation: Sumatriptan is distributed into breast milk following administration of the drug to lactating animals or nursing women. Infant exposure can be minimized by avoiding breast-feeding for 12 hours after receiving the drug.
