BY MOUTH, 400 MG TWICE DAILY (WITH BREAKFAST AND AT NIGHT) OR 800 MG AT NIGHT (BENIGN GASTRIC AND DUODENAL ULCERATION) FOR AT LEAST 4 WEEKS (6 WEEKS IN GASTRIC ULCERATION, 8 WEEKS IN NSAID-ASSOCIATED ULCERATION); WHEN NECESSARY THE DOSE MAY BE INCREASED TO 400 MG 4 TIMES DAILY; INFANT UNDER 1 YEAR 20 MG/KG DAILY IN DIVIDED DOSES HAS BEEN USED; CHILD OVER 1 YEAR 25-30 MG/KG DAILY IN DIVIDED DOSES
MAINTENANCE, 400 MG AT NIGHT OR 400 MG MORNING AND NIGHT
REFLUX OESOPHAGITIS, 400 MG 4 TIMES DAILY FOR 4-8 WEEKS
ZOLLINGER-ELLISON SYNDROME - 400 MG 4 TIMES DAILY OR OCCASIONALLY MORE (MAX. 2.4 G DAILY)
PROPHYLAXIS OF STRESS ULCERATION, 200-400 MG EVERY 4-6 HOURS
GASTRIC ACID REDUCTION (PROPHYLAXIS OF ACID ASPIRATION; DO NOT USE SYRUP), OBSTETRICS 400 MG AT START OF LABOUR, THEN UP TO 400 MG EVERY 4 HOURS IF REQUIRED (MAX. 2.4 G DAILY); SURGICAL PROCEDURES 400 MG 90-120 MINUTES BEFORE INDUCTION OF GENERAL ANAESTHESIA
SHORT-BOWEL SYNDROME, 400 MG TWICE DAILY (WITH BREAKFAST AND AT BEDTIME) ADJUSTED ACCORDING TO RESPONSE
TO REDUCE DEGRADATION OF PANCREATIC ENZYME SUPPLEMENTS, 0.8-1.6 G DAILY IN 4 DIVIDED DOSES 1-1Β½ HOURS BEFORE MEALS
BY INTRAMUSCULAR INJECTION, 200 MG EVERY 4-6 HOURS
BY SLOW INTRAVENOUS INJECTION (BUT SEE CAUTIONS ABOVE) OVER AT LEAST 5 MINUTES, 200 MG; MAY BE REPEATED EVERY 4-6 HOURS; IF LARGER DOSE NEEDED OR IF CARDIOVASCULAR IMPAIRMENT, DILUTE AND GIVE INJECTION OVER AT LEAST 10 MINUTES (INFUSION PREFERABLE); MAX. 2.4 G DAILY
BY INTRAVENOUS INFUSION, 200-400 MG (MAY BE REPEATED EVERY 4-6 HOURS) OR BY CONTINUOUS INTRAVENOUS INFUSION USUALLY AT A RATE OF 50-100 MG/HOUR OVER 24 HOURS, MAX. 2.4 G DAILY; INFANT UNDER 1 YEAR, BY SLOW INTRAVENOUS INJECTION OR BY INTRAVENOUS INFUSION, 20 MG/KG DAILY IN DIVIDED DOSES HAS BEEN USED; CHILD OVER 1 YEAR, 25-30 MG/KG DAILY IN DIVIDED DOSES