PHARMACEUTICAL COMPOSITION FOR ADMINISTRATION TO PREGNANT WOMEN OR WOMEN WHO MAY BE PREGNANT

摘要

The purpose of the invention is to develop a pharmaceutical product that can be used during pregnancy. Inventors have found that placental permeability can be controlled by controlling, in particles having on the surface thereof a hydrophilic polymer to which a therapeutic drug is bonded or coordinated, the particle size of the particles by the hydrophilic polymer. The problem is solved by particles having a particle size of 10-100 nm when measured by dynamic light scattering.