EphedrineEmeticsAppetite DepressantsEating DisordersDietEphedraPhenylpropanolamineAnesthesia, ObstetricalAnesthesia, SpinalPseudoephedrineEphedra sinicaHypotensionSympathomimeticsMetaraminolCesarean SectionDiet, ReducingRitodrineContraceptives, OralDoping in SportsPhenylephrineVasoconstrictor AgentsContraceptives, PostcoitalDrugs, Chinese HerbalCentral Nervous System StimulantsAnesthesia, EpiduralContraceptives, Oral, CombinedDiet, High-FatDrug and Narcotic Control