This is Dr. David
Adcal chewable tablets contain the active ingredient calcium carbonate
her GP most likely gave this to her because she was low in calcium level
or she could be having stomach acid issues and the calcium carbonate can help neutralize stomach acid.
I am a cancer doctor.
I am not worried about the basal cell cancer on her face and the calcium.
she should get a calcium level and have it monitored.
but patients who have diabetes and poor kidney function can take calcium supplements and calcium antacids.
are you going with her to her doctors appointments?
I would find out what her calcium level is and continue to monitor it.