Combination calcium carbonate + calcium lactogluconate & can reduce the absorption of estramustine, etidronate, and possibly other bisphosphonates, phenytoin, quinolones, oral tetracycline antibiotics, and fluoride preparations. The interval between the intake of effervescent tablets calcium carbonate + calcium lactogluconate & and the above preparations should be at least 3 hours.
Simultaneous administration of vitamin A D and its derivatives increases the absorption of calcium. When administered in high doses along with vitamin D and its derivatives, calcium can reduce the action of verapamil and, possibly, other calcium channel blockers.
At simultaneous application of tablets effervescent calcium carbonate + calcium lactogluconate & and tetracycline drugs may be impaired absorption of the latter. For this reason, tetracycline drugs should be taken at least 2 hours before or 4-6 hours after ingestion of calcium preparations.
Thiazide diuretics reduce the excretion of calcium in the urine, so when they are used simultaneously with effervescent tablets calcium carbonate + calcium lactogluconate & should regularly monitor the concentration of calcium in the blood serum,because there is a risk of hypercalcemia.
Systemic corticosteroids reduce absorption of calcium. At their simultaneous application it may be necessary to increase the dose of effervescent tablets calcium carbonate + calcium lactogluconate &.
When ingested tablets of effervescent calcium carbonate + calcium lactogluconate & in patients receiving cardiac glycosides, it is possible to increase the toxicity of cardiac glycosides due to the development of hypercalcemia. Such patients should regularly take ECG and monitor the level of calcium in the blood serum.
With the simultaneous ingestion of bisphosphonate or sodium fluoride, these drugs should be taken at least 3 hours before taking the effervescent tablets calcium carbonate + calcium lactogluconate &, as absorption from the gastrointestinal tract (GIT) of the bisphosphonate or sodium fluoride can be reduced.
Calcium absorption from the gastrointestinal tract may decrease with the simultaneous intake of certain foods containing oxalic acid (for example, spinach, rhubarb) or phytic acid (in all cereals) due to the formation of insoluble complexes with calcium ions. Patients should not take effervescent tablets calcium carbonate + calcium lactogluconate & 2 hours before or after a meal rich in oxalic or phytic acid.