When the pill causes a rise in blood pressure.
D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000139:chemically induced* / Q000188:drug therapy; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular
D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal