Precautions
Before taking calcium ascorbate, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this product, tell your doctor or pharmacist about your medical history, especially of kidney disease (such as kidney stones), a certain enzyme deficiency (G6PD deficiency), and high calcium levels (hypercalcemia).
During pregnancy, vitamin C has been found to be safe when used in recommended doses. Higher doses should be used during pregnancy only if clearly needed. Discuss the risks and benefits with your doctor.
Interactions
While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor’s approval.
The calcium in this product can interfere with your body’s ability to absorb certain drugs, especially if you take them around the same time. These drugs include quinolone antibiotics (such as ciprofloxacin, levofloxacin), tetracycline antibiotics (such as doxycycline, minocycline), thyroid medications (such as levothyroxine), and drugs for osteoporosis (bisphosphonates such as alendronate). Ask your doctor or pharmacist how long to wait between doses and when you should take your medications.
Check the labels on all your medicines and vitamins because they may also contain vitamin C and/or calcium. Ask your pharmacist about using those products safely.
This product may interfere with certain laboratory tests (including certain urine glucose tests), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.