Tolerance of antacids.

The use of aluminium containing antacids raises the question of toxicity. Uptake of excessive quantities of aluminium may produce neurological symptoms and osteomalacia. Provided that renal function is intact ingested aluminium from antacids is absorbed to a small extent from the gastrointestinal tract resulting in a transient increase in plasma aluminium levels which never reach toxic concentration, and therefore can be regarded as safe.