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Ukioqatigiit

Læknablaðið - 15.06.1997, Qupperneq 8

Læknablaðið - 15.06.1997, Qupperneq 8
368 LÆKNABLAÐIÐ 1997; 83 Virkni sýruhemjandi lyfja Samanburður á Losec®/Lómex® og Zantac®/Famex® Mæling á sýrustigi í maga í 24 klukkustundir Hallgrímur Guöjónsson, Einar Oddsson, Magdalena Sigurðardóttir, Bjarni Þjóöleifsson Guðjónsson H, Oddsson E, Sigurðardóttir M, Þjóð- Icifsson B From The Gastroenterology Unit, Department of Medicine, Landspítalinn University Flospital, Reykjavík, Iceland. Comparison of the efficacy of Losec®/Lómex® and Zantac®/Famex® by continuous 24 hour gastric pH- mctry Læknablaðið 1997; 83: 368-73 Objective: The study proposes to investigate the pharmacological efficacy of four commonly used acid inhibitöry drugs. The effect on 24 hour gastric pH of seven days treatment was assessed for two omeprazole preparations, Losec® 20 mg (Hassle) and Lómex® 20 mg, (Omega Farma) and two H2 blockers, famotidine 40 mg (Famex®, Omega Far- ma) and ranitidine 300 mg (Zantac®, Glaxo). Material and mcthods: Sixteen healthy volunteers participated in each experiment comparing blindly Losec® / Lómex® and Famex® / Zantac®. The stom- ach was intubated with monocrystant antimony catheter and the pH sensor was placed 10 cm below the cardia. A 24 hour control pH-metry was per- formed followed by a 24 hour pH-metry on the seventh day of treatment with each drug. Frá rannsóknarstofu í meltingarsjúkdómum, lyflækninga- deild Landspítalans. Fyrirspurnir, bréfaskriftir: Bjarni Þjóð- leifsson, lyflækningadeild Landspítalans, 101 Reykjavík. Lykilorð: sýruhemlun, síritun á sýrustigi maga, ómeprazói, famótidín, ranitidin. Keywords: acid inhibition, pH-metry continuous, omepra- zole, famotidine, ranitidine. Results: All four drugs gave significant acid inhib- ition compared to control. Zantac treatment result- ed in a pH over 3 for 8.8 hours and correspondingly Famex® treatment for 11.2 hours, Losec® treatment for 17.5 hours and Lómex® for 18.3 hours. Famex® gave significantly greater inhibition than Zantac® but the difference between Lómex® and Losec® was not significant. Conclusion: The study shows the efficacy of com- monly used acid lowering drugs on the Icelandic market. The relative efficacy is indicated by the fact that Zantac® increased the median time for pH over 3 by 2.6 hours, Famex® by 5.0 hours, Losec® by 11.3 hours and Lómex® by 12.1 hours. Ágrip Markmið: Markmið rannsóknarinnar var að meta virkni fjögurra lyfja sem hækka sýrustig í maga. Bera hana saman við þá hækkun á sýru- stigi sem nauðsynleg er til að ná fullri svörun í meðferð sýrutengdra sjúkdóma. Ahrif viku- meðferðar á sýrustig í maga í sólarhring, voru könnuð fyrir tvær ómeprazól lyfjagerðir, Los- ec® 20 mg (Hassle) og Lómex® 20 mg (Omega Farma) og tvo H, blokka, famótidín 40 mg (Famex® Omega Farma) og ranitidín 300 mg (Zantac®, Glaxo). Aðferðir: Sextán heilbrigðir sjálfboðaliðar tóku þátt í þremur tilraunalotum. í fyrstu lotu var gerð viðmiðunarmæling án lyfja. í annarri lotu var gerð mæling á sjöunda degi meðferðar með Famex® og Zantac® og í þriðju lotu var gerð mæling á sjöunda degi meðferðar með Losec® og Lómex®. Tilviljun réði röð lyfja. Grönn slanga með sýruskynjara var þrædd í gegnum nef sjálfboðaliðanna og niður í maga.
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