又找到一个关于孕产期喝raspberry tea 的资料，称它为妈妈茶呢：

http://www.tealand.com/RaspberryLeaf.asp

http://www.compleatmother.com/tea_company.htm

Besides being consumed regularly during pregnancy, women often drink raspberry tea during labor. This is because raspberry leaves contain an alkaloid called fragarine, which is said to make labor easier due to its effectiveness as a tonic for the pelvic muscles and uterus.

When taken after birthing, raspberry tea facilitates placental delivery, helps decrease uterine swelling, and helps prevent postpartum bleeding. Drinking raspberry tea until the time of birthing is so nutritious, it helps to ensure that the colostrum (the first breast milk) will be especially rich. However, it is not used excessively during lactation due to its astringent properties that can decrease milk supply.

http://www.tealand.com/RaspberryLeaf.asp

Raspberry Leaf tea supports female systems.* Its long history of safe human consumption is evident over thousands of years of use by women in Europe and North America to support healthy menstruation, strengthen and tone the uterus, and to prepare the womb for childbirth.* Infusions of raspberry leaf have been traditionally used as an important gynecological aid by women of the Cherokee, Iroquois and Mohawk nations of North America. The British Herbal Pharmacopoeia (1996) indicates its use as a preparative for childbirth. Raspberry Leaf tea’s robust, full-bodied flavor is reminiscent of fine black tea, making it an excellent choice in a caffeine-free breakfast or afternoon tea.