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 +
 D27.505.696.875.360.276.310 Contraceptives, Postcoital D003281 +
 D27.505.696.875.360.276.310.235 Contraceptives, Postcoital, Hormonal D003282 
 D27.505.696.875.360.276.310.360 Contraceptives, Postcoital, Synthetic D003283