Guevara-Gutierrez, Elizabeth Safety and efficacy of cetirizine versus cetirizine plus ranitidine in chronic urticaria: Double-blind randomized placebo-controlled study. [electronic resource] - The Journal of dermatological treatment 2015 - 548-50 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1471-1753 Standard No.: 10.3109/09546634.2015.1025031 doi Subjects--Topical Terms: AdultAgedCetirizine--administration & dosageChronic DiseaseDouble-Blind MethodFemaleHistamine H1 Antagonists, Non-Sedating--administration & dosageHistamine H2 Antagonists--administration & dosageHumansMaleMiddle AgedQuality of LifeRanitidine--administration & dosageUrticaria--drug therapyYoung Adult