A drug is made up of a small molecule of hydrogen, carbon, oxygen, nitrogen, and a few other atoms all cobbled together in a shape, and it's those shapes that determine whether, in fact, that particular drug is going to hit its target.
Un medicamento está hecho de una pequeña molécula de hidrógeno, de carbono, de oxígeno, de nitrógeno y otros pocos átomos apiñados en cierta forma.