The formula for simple interest is I = prt where I is the simple interest, p is the principal, r is the rate of interest, and t is the period of time.
No anti-anxiety medication is completely safe during pregnancy, but some are much safer than others. The least safe anti-anxiety medications during pregnancy are benzodiazepines, such as Xanax and Valium. They inhibit brain function by enhancing the potency of the neurotransmitter GABA. According to a study published in the November 2007 issue of Pharmacoepidemiology and Drug Safety, benzodiazepines increase the risk of low birth weight, preterm birth and congenital malformations.
Animal studies also fail to show an increased fetal risk with the use of these medications in pregnancy, the notable exception being nizatidine (Axid). 22 Nizatidine has been associated with an increased risk of fetal death, spontaneous abortion, and decreased fetal weight in rabbits.econgestants, Expectorants, and Antihistamines. Women commonly use cold medications during pregnancy. These medications, like most of the other OTC drugs, have not been studied well in pregnancy (Table 3) . 9, 10 As a result, some physicians are disinclined to recommend any treatment for the common cold.