Resistant hypertension needs special attention.  Changing medication, extra tests sometimes needed to control blood pressure.
D000959:Antihypertensive Agents / Q000494:pharmacology / Q000627:therapeutic use; D004351:Drug Resistance; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D010818:Practice Patterns, Physicians'; D017211:Treatment Failure
D000959:Antihypertensive Agents