| Cadonilimab | 2394841-59-7 | Other substances | 0 |
| Cadralazine | 64241-34-5 | Antihypertensive agents | 0 |
| Cafedrine | 58166-83-9 | Cardiac stimulants | 0 |
| Caflanone | 199167-23-2 | | 0 |
| Cajuput oil | 8008-98-8 | | 0 |
| Calanolide A | 142632-32-4 | | 0 |
| Calaspargase pegol | 941577-06-6 | Anticoagulants | 0 |
| Calcitonin eel | 57014-02-5 | Other substances | 0 |
| Calcitonin gene-related peptide | 83652-28-2 | Anti-inflammatory Agents | 0 |
| Calcitonin porcine | 12321-44-7 | Hormonal Agents | 0 |
| Calcium Phosphate | 10103-46-5 | Electrolytes | 0 |
| Calcium alginate | 9005-35-0 | Hematological Agents | 0 |
| Calcium ascorbate | 5743-27-1 | Antioxidants | 0 |
| Calcium carbimide | 156-62-7 | | 0 |
| Calcium cation | 14127-61-8 | Dental and Oral Agents | 0 |
| Calcium chloride dihydrate | 10035-04-8 | | 0 |
| Calcium fluoride | 7789-75-5 | | 0 |
| Calcium glubionate anhydrous | 97635-31-9 | Electrolytes | 0 |
| Calcium glycerophosphate | 27214-00-2 | Alkalinizing agents | 0 |
| Calcium hypochlorite | 7778-54-3 | | 0 |
| Calcium lactate | 814-80-2 | Electrolytes | 0 |
| Calcium lactate gluconate | 11116-97-5 | Electrolytes | 0 |
| Calcium levulinate | 591-64-0 | Electrolytes | 0 |
| Calcium magnesium potassium carbonate chloride hydroxide | 1224727-39-2 | | 0 |
| Calcium oxide | 1305-78-8 | Dental and Oral Agents | 0 |
| Calcium pangamate | 20310-61-6 | Other substances | 0 |
| Calcium phosphate dihydrate | 7789-77-7 | Hormonal Agents | 0 |
| Calcium polycarbophil | 126040-58-2 | Antidiarrheals | 0 |
| Calcium saccharate | 5793-88-4 | | 0 |
| Calcium sulfide | 20548-54-3 | Anti-infective Agents | 0 |
| Caldaret | 133804-44-1 | Emollients and protectives | 0 |
| Calfactant | 183325-78-2 | | 0 |
| Calicheamicin | 108212-75-5 | | 0 |
| Calmangafodipir | 1401243-67-1 | Contrast Media | 0 |
| Calusterone | 17021-26-0 | | 0 |
| Calyculin A | 101932-71-2 | | 0 |
| Calystegine B2 | 127414-85-1 | | 0 |
| Camazepam | 36104-80-0 | | 0 |
| Cambendazole | 26097-80-3 | Anti-infective Agents | 0 |
| Cambinol | 14513-15-6 | Anticancer drugs | 0 |