When do drugs start affecting a fetus?
The fetus is most vulnerable throughout the primary twelve weeks, throughout this era of your time, all of the most important organs and body systems area unit forming and may be broken if the fetus is exposed to medicine, infectious agents, radiation, sure medications, tobacco and ototoxic substances. sure medicine taken early in physiological state (15-21 days when fertilization) throughout the amount of blastogenesis might act in associate degree all or nothing fashion; killing the craniate or not moving it in the slightest degree. throughout this early stage the fetus is very immune to birth defects. misappropriated medicine like marijuana, cocaine, and upper are not the sole medicine that area unit harmful to vertebrate development; usually used over-the-counter medicines, at the side of substances like alkaloid and alcohol, will have lasting effects on associate degree unhatched kid. A mother taking misappropriated medicine throughout physiological state will increase h...