Questions about medication use during pregnancy and lactation are a concern for women and healthcare providers. Unfortunately, there is little experience with the use of most medications in human pregnancy and lactation at the time they are marketed. Even when information is available, it may not be readily accessible to women and healthcare providers. Nevertheless, medication use by pregnant and breastfeeding women may be beneficial, and even essential, to ensure the health of both mother and child. In addition, almost half of pregnancies in the United States each year are unintended, and medication exposures may occur in the early weeks of gestation before a pregnancy is recognized. For these reasons, it is critical that up-to-date information about the effects of medication use during pregnancy and lactation and the management of maternal conditions be available to women and healthcare providers. A comprehensive, coordinated public health approach that builds on and expands existing activities is needed to generate information about medication use, make that information readily available, and translate it into safe and effective healthcare. Critical components of this system include a central source of up-to-date information, further development and coordination of monitoring and research activities, the availability of counseling services throughout the country, development of standard communication messages, and a panel of experts to provide oversight. This will require collaborative support from government agencies, nonprofit organizations, academic and public health professionals, and healthcare providers to ensure safe and beneficial use of medications during pregnancy and lactation.

The present study was carried out to determine the impacts of SO 2 , NO x , SPM and RSPM, the most common air pollutants, generated mainly due to industries and vehicles, on some biochemical parameters and yield in wheat and mustard plants during 2006. The concentration of SO 2 , NO x , SPM and RSPM was determined at the polluted sites across the seasons, which ranged between 14. 29-18.10, 20.81-22.43, 483.65-500.85 and 160.67-171.18 lg m -3 , respectively. The wheat and mustard plants grown at polluted sites showed significant reduction in chlorophyll 'a', chlorophyll 'b', total chlorophyll, carotenoid, ascorbic acid, pH, relative water content and yield. The data were further analyzed using a two way ANOVA. It is concluded that the ambient air pollutants have a potential adverse impact on biochemical parameters, which further leads to a reduction in the yield of wheat and mustard crops.

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