Indication

Adult: Dyspepsia, Abdominal Bloating\r\n10-20 mL PO q4-6hr taken 1 hour before or 3 hours after meals, OR\r\n\r\nChew 2-4 tablets q4-6hr; not to exceed 12 tablets/24 hr\r\n\r\nPO Antacid Up to 1 g/day. \r\nHyperphosphataemia in chronic renal failure Up to 10 g/day in divided doses w/ meals.

Administration

Aluminium Hydroxide: Enhanced absorption with citrates or ascorbic acid. Decreases absorption of allopurinol, tetracyclines, quinolones, cephalosporins, biphosphonate derivatives, corticosteroids, cyclosporin, delavirdine, Fe salts, imidazole antifungals, isoniazid, mycophenolate, penicillamine, phosphate supplements, phenytoin, phenothiazines, trientine.\r\n\r\nMagnesium Hydroxide: Decreases absorption of tetracyclines and biphosphonates. Separate administration of these and other drugs by around 2 hr.\r\n\r\nSimethicon: None well documented.

Adult Dose

Chronic renal impairment; CHF; oedema; cirrhosis and low Na diets; patients with recent GI haemorrhage. Administer 2-3 hrs before/after another medication to minimise drug interactions. Pregnancy and lactation.\r\n\r\nLactation: excretion in milk unknown

Renal Dose

Aluminum hydroxide: Neutralizes stomach hydrocloride to form AlCl3 salt plus water; increases gastric pH.\r\nMagnesium hydroxide: Promotes bowel evacuation by causing osmotic retention of fluid, which causes the colon to distend with increased peristaltic activity; forms magnesium chloride when reacts with hydrochloric acid.\r\nSimethicone: Disperses and prevents gas pockets in the GI system by decreasing surface tension of gas bubles.\r\n\r\n

Mode of Action

Administration Should be taken on an empty stomach.

Precaution

Dyspepsia, Flatulence

Pregnancy Category Note

Aluminum hydroxide\r\nChalky taste,Constipation,Fecal impaction,Stomach cramps,Nausea,Vomiting,Rebound hyperacidity,Aluminum intoxication,Hypophosphatemia,Milk-alkali syndrome,Osteomalacia\r\n\r\nMagnesium hydroxide\r\nDiarrhea,Hypermagnesemia\r\n\r\nSimethicone\r\nLoose stools

Interaction

Hypersensitivity to aluminium salts.