Before the usage of Calvit 12 Syrup, inform your medical doctor about your modern listing of medications, over the counter merchandise (e.g. vitamins, natural supplements, etc.), allergies, pre-existing diseases, and present day fitness stipulations (e.g. pregnancy, upcoming surgery, etc.). Some fitness stipulations can also make you extra prone to the side-effects of the drug. Take as directed by way of your physician or observe the course printed on the product insert. Dosage is based totally on your condition. Tell your physician if your situation persists or worsens. Important counseling factors are listed below: Breastfeeding. Consult your medical doctor in case of allergies, diarrhea, belly or intestinal problems, coronary heart disease, hypercalciuria, hyperparathyroidism, sarcoidosis, renal impairment, hypercalcaemia-associated disease. Consult your physician in case of questions about the quantity of calcium you need to be taking in every day. Do now not supply injectable structure of calcium to children Elderly Folic acid deficiency Iron deficiency Kidney disease Liver disease Pregnancy Composition: Calcium gluconate 200 mg + ferric ammonium citrate 45 mg + cholecalciferol 400 I.U + vitamin B12 3.5 mcg