title: [Single nocturnal dose of ranitidine in the treatment of duodenal ulcer: results of an open multicenter, comparative trial].
abstract: This prospective multicentric randomized open trial was designed to evaluate the efficacy of ranitidine 150 mg bid vs 300 mg nocte in the short-term (4 weeks) treatment of duodenal ulcer in 15 Brazilian centers. On the basis of a randomization table 190 patients with endoscopically confirmed duodenal ulcer were allocated to receive either ranitidine 150 mg bid (94 pts) or 300 mg nocte (96 pts). The 2 treatment groups were well matched for age, sex, duration of ulcer disease, number and size of ulcers, duration of current episode, intensity of ulcer pain, alcohol and coffee intake and smoking habits. They were endoscopically controlled at the end of the 4 weeks. At 4 weeks 78 of 94 patients (83.0%) had their ulcers healed with the 150 mg bid regimen as opposed to 79 of 96 patients (82.3%) allocated to the 300 mg nocte dosage. This difference was not statistically significant. Ulcer symptoms diminished with treatment in both groups. The tolerability and compliance was excellent in both groups. The results show that ranitidine 300 mg nocte is as effective in the short-term treatment of duodenal ulcer as ranitidine 150 mg bid. Considering the greater simplicity of administration enhancing patient compliance, the treatment with 300 mg nocte is preferable.
authors.affiliation: Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG.
authors.forename: L de P
authors.initials: Lde P
authors.lastname: Castro
authors.forename: A
authors.initials: A
authors.lastname: Bettarello
authors.forename: A V
authors.initials: AV
authors.lastname: Pessoa
authors.forename: F E
authors.initials: FE
authors.lastname: Vieira
authors.forename: I B
authors.initials: IB
authors.lastname: Paes
authors.forename: I
authors.initials: I
authors.lastname: Maguilnik
authors.forename: J
authors.initials: J
authors.lastname: Pereira-Lima
authors.forename: J F
authors.initials: JF
authors.lastname: Pontes
authors.forename: J F
authors.initials: JF
authors.lastname: Penteado
authors.forename: J C
authors.initials: JC
authors.lastname: Pisani
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D004334:Drug Administration Schedule; D004381:Duodenal Ulcer / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011899:Ranitidine / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D011899:Ranitidine
vernacular_title: Ranitidina em dose única noturna no tratamento da úlcera duodenal. Resultado de um estudo aberto, multicêntrico, comparativo.