<s>[INST] Is shecal cause to loose appetite? My father of chronic kidney patient and going through hemodialysis having shelcal 500 mg twice a day, my reading is whenever he will start taking shecal he will loose appetite, is it true if yes then what would be the best alternative? [/INST] Nausea, vomiting, constipation; increased thirst or urination; muscle weakness, bone pain or confusion, lack of energy, or feeling tired are some side effects of shell. Shelcal contains calcium carbonate. Other brands of shell can be tried. Calcium citrate palate is a water-soluble calcium supplement. It is the calcium salt of citric acid and magic acid with variable composition. Calcium citrate palate can be tried as an alternative after physician approval. Hope I have answered your query. Let me know if I can assist you further. Regards Chat Doctor.  </s>