Do not take Stablon Tablet during pregnancy unless recommended by the doctor. It is given only if the benefits are clearly more than the risks involved. This is because studies have shown significant risks to the developing baby. If you take this medicine during the last trimester of the pregnancy, the newborn may develop symptoms such as breathing problems, weakness, irritability, changes in blood pressure, tremors and spasms.. Hence, it is advised that you should consult your doctor before taking this medicine if you are pregnant, planning to become pregnant or breastfeeding.