Cramp Bark

Cramp bark has so many benefits.
PMS/Menstrual Cramps
Research from in vitro studies reveals that cramp bark can block the spasms of smooth muscle, so it’s not surprising that one of cramp bark’s most well-known uses as a traditional herbal remedy is for menstrual cramps that can accompany PMS. It’s known to help soothe even severe cramping that is associated with nausea, vomiting and sweaty chills.
Cramp bark is traditionally prepared by placing two teaspoons of the dried bark into a cup of water, bringing it to a boil and then simmering it for 10 to 15 minutes. This tea can be consumed three times per day for cramps. Another option is four to eight milliliters of tincture three times per day.

Endometriosis is a medical disorder in which the tissue that normally lines the inside of the uterus grows outside the uterus. The fruits of Viburnum opulus have been used to treat gynecological disorders, including dysmenorrhea (painful periods) as well as ovarian cysts.
 
Miscarriage
According to experts in the field, cramp bark has long been used as a spasmolytic (or antispasmodic) during pregnancy, particularly in miscarriage prevention. This use as an herbal remedy in pregnancy is said to go back to Native American tribes.