Eat a well- balanced diet with plenty of fiber. Good sources of fiber are fruits, vegetables, legumes, and whole-grain bread and cereal (especially bran). Drink 1 1/2 to 2 quarts of water and other fluids a day (unless your doctor has you on a fluid-restricted diet). Fiber and water work together to keep you regular.
Zofran: FDA Pregnancy Category B. According to the United States Food and Drug Administration (FDA), ondansetron (Zofran) is a Pregnancy Category B drug. This means there is no evidence of risk in humans. Either animal findings show risk, but human findings do not; or, if no adequate human studies have been done, animal findings are negative.
Overview of Ondansetron for Canines and Felines. 1  Ondansetron, commonly known by the brand name ZofranÂ®, is used in dogs and cats to treat a variety of conditions with the most common being vomiting.  Ondansetron is a drug that selectively inhibits serotonin 5HT3 receptors.