Hello. I had surgery for tongue cancer. I have been on calcium gluconate pills 4 pills 4 times a day. I have been unable to get this medication. I have been thrown back and forth between my ent and family dr in figuring what to. Now, I am having to drink boost through my feeding tube every 2 hours, have blood work to do and have to fast and there is no way i can do it. What can substitute over the counter for the over the counter calcium gluconate and will this get the hunger controlled too. As long as I was taking it I was able to eat every 4 hours as told.And what dosages should it be.I was told to take oscal but then taken off it due to vomiting every time I took it. Thanks for your help in advance.