Flow measurement is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive-displacement flow meters accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow.
The following herbs have been rated Likely Safe or Possibly Safe for use during pregnancy:4. 1  Red Raspberry Leaf â Rich in iron, this herb has helped tone the uterus, increase milk production, decrease nausea, and ease labor pains. 2  Peppermint Leaf â Helpful in relieving nausea/morning sickness and flatulence.
Vitamin B6 is often helpful for moms-to-be with mild to moderate nausea. Antihistamines have also been used to treat nausea and vomiting in pregnancy. Your practitioner may recommend doxylamine, an antihistamine that's available as a sleeping pill under the brand name Unisom Nighttime Sleep-Aid.