All
 D27 Chemical Actions and Uses D020164 +
 D27.505 Pharmacologic Actions D020228 +
 D27.505.696 Physiological Effects of Drugs D045505 +
 D27.505.696.875 Reproductive Control Agents D012102 +
 D27.505.696.875.360 Contraceptive Agents D003270 +
 D27.505.696.875.360.276 Contraceptive Agents, Female D003271 +
 D27.505.696.875.360.276.210 Contraceptives, Oral D003276 +
 D27.505.696.875.360.276.210.100 Contraceptives, Oral, Combined D003277 
 D27.505.696.875.360.276.210.277 Contraceptives, Oral, Hormonal D003278 
 D27.505.696.875.360.276.210.400 Contraceptives, Oral, Sequential D003279 
 D27.505.696.875.360.276.210.443 Contraceptives, Oral, Synthetic D003280