“…The results of drying the skeletons of the current study in the fetuses of pregnant rats treated with lercanidipine at concentrations (10), 20 (mg / kg) during (16, 20) days of pregnancy showed various deformities in the skeleton such as the small size of the fetus in general and the lack of ossification of its skeleton on the day of ( 16) from pregnancy as shown in the pictures (21, 22), while the deformities on the 20th day of pregnancy were deformation of the cranial bones, the loss of a number of phalanges of the upper and lower limbs, the loss of some caudal vertebrae and the shortening of the skeleton, causing a small size of the fetuses, as shown in the pictures (28, 27, 26, 25) respectively, when compared with the skeletons of fetuses in the control group for the same two gestational days (16,20) The results of the histological study of the livers and kidneys of fetuses of pregnant animals treated with lercanidipine at two concentrations (10 and 20) mg / kg, from the first day of pregnancy until the periods 16 and 20 days of pregnancy numerous negative histological changes suggestive of the danger of using the drug during pregnancy, whose effect on tissues increased as the duration of pregnancy increased and the concentration of the drug increased when compared with the histological structure of the livers and kidneys of pregnant rat fetuses in control groups and for the same gestational periods, 16 days and 20 days respectively, numerous negative histological changes suggestive of the danger of using the drug during pregnancy, whose effect on tissues increased as the duration of pregnancy increased and the concentration of the drug increased when compared with the histological structure of the livers and kidneys of pregnant rat fetuses in control groups and for the same gestational periods, 16 days and 20 days, respectively, it is possible to explain these results of the current study that the drug has the ability to pass through the placenta, causing cases of crash and deterioration during its passage between the cells and tissues of the embryos which is characterized by its weak ability to confront these harmful effects with the lack and weakness of its defensive devices, which are characterized by the beginning of their formation as a catalyst during the passage of pathological and toxic effects, because the drug has an effect on energy production in mitochondria, causing tissue ischemia (lschemia) due to a defect in energy production (ATP) and synthesized proteins due to irregular concentrations of calcium (C++) between mitochondria and the endoplasmic reticulum [10], likewise, the drug under study may affect the electron transport chain, enzymatic activities, and organic acid consumption rates, enhancing protein toxicity and thus the production of reactive nitrogen and reactive oxygen species ROS. It may also affect the imbalance of mitochondrial permeability in different cases, causing shrinkage and swelling, and this is what was shown by the study of [12], Or the reason for this result may be the effect on the placenta due to the drug and the lack of blood supply, which plays an essential and effective role in the lack of nutrients and oxygen, resulting in malnutrition and a defect in the formation of tissues for the various organs in the body, including the studied organs (liver and kidneys) and stimulating the deterioration and degeneration of cells Others necrosis, infiltration of inflammatory cells, smashing of the central veins, enlargement of some cells, bleeding, congestion, atrophy, laceration, and selfdestruction of cells [...…”