Scientific Make Up-Composition Of The March Birthstone. Aquamarines vary in color from deep blue to bluish-green, with differing intensities due to the varying quantities of iron in the beryl crystal. Naturally occurring deep blue aquamarine stones are rare, expensive and in high demand.
A Stacy Wiegman, PharmD , Pharmacy, answered. Zofran (ondansetron) acts fairly quickly. For people who are undergoing chemotherapy, it is usually given 30 minutes before starting the chemo so that it is working when chemo starts. To prevent nausea and vomiting after surgery, it is usually given one hour before the operation.
FDA Warns Against Zofran Use in Pregnancy. The FDA has issued an updated warning against Ondansetran, better known by its brand name, Zofran, use in pregnancy discussed in OBGYN News. Zofran is a 5-HT3 receptor antagonist approved by the FDA for preventing nausea and vomiting related to cancer chemotherapy and surgery. It has been used off-label to treat nausea and vomiting in pregnancy. Based on recent studies regarding the association between Zofran use in early pregnancy and congenital cardiac malformations and oral clefts (cleft lip and palate), the FDA has cautioned against its use in pregnancy.