§ 2503. Drug information to be furnished expectant mothers. The physician or nurse-midwife to be in attendance at the birth of a child shall inform the expectant mother, in advance of the birth, of the drugs that such physician or nurse-midwife expects to employ during pregnancy and of the obstetrical and other drugs that such physician or nurse-midwife expects to employ at birth and of the possible effects of such drugs on the child and mother.