[Comparative double-blind, randomized, crossover study controlled with placebo, of the efficacy of depot nifedipine in patients refractory to basic antihypertensive therapy].
D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D004311:Double-Blind Method; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000008:administration & dosage / Q000627:therapeutic use*; D010919:Placebos
D003692:Delayed-Action Preparations; D010919:Placebos; D009543:Nifedipine
Estudo comparativo duplo-cego, randomizado, cruzado, controlado com placebo, da eficácia de nifedipina retard em pacientes refratários à terapêutica basal anti-hipertensiva.