Tab GERD: Erosive reflux esophagitis 40 mg once daily for 4 wk. Additional 4 wk is recommended for patients w/ esophagitis that has not healed or w/ persistent symptoms. 
Long-term management of healed esophagitis to prevent relapse 20 mg once daily. 
Symptomatic treatment of GERD w/o esophagitis 20 mg once daily for 4 wk. 
Prevention of gastric & duodenal ulcer associated w/ NSAID therapy in patients at risk 20 or 40 mg once daily. 
In combination w/ appropriate antibacterial regimens for H. pylori eradication, prevention of relapse of peptic ulcer w/ H. pylori-associated ulcer disease 20 mg + amoxicillin 1 g & clarithromycin 500 mg bid for 7 days. 
Severe liver impairment Max: 20 mg daily. 
Inj Adult 20 or 40 mg once daily by IV inj (no less than 3 min) or IV infusion (10-30 min).