[On the medicinal control of essential hypertension].
D004809:Ephedrine / Q000628:therapy*; D000075222:Essential Hypertension; D006973:Hypertension / Q000628:therapy*; D013806:Theophylline / Q000031:analogs & derivatives
D013806:Theophylline; D004809:Ephedrine
EPHEDRINE/therapy; HYPERTENSION/therapy; THEOPHYLLINE/related compounds