“It is of interest that the absorption of tetracycline has recently been shown to be decreased by concurrent therapy with antacids in the absence of chelation.1In this instance, depressed blood levels of tetracycline were noted when the antibiotic was administered with sodium bicarbonate.”
“Patients receiving 250-mg capsules of tetracycline and 2.0 gm of sodium bicarbonate concomitantly were compared to patients receiving tetracycline alone.”