| Reaction | |
|---|
| Cervical stenosis (1) | |
| Chest pain (non-cardiac) (see musculoskeletal (non-cardiac) chest pain) | |
| Chest wall rigidity (2) | |
| Chondritis (2) | |
| Chondrodystrophy | |
| Chondrolysis (1) | |
| Compartment syndrome (8) | |
| Convulsions (6) | |
| Cramps (25) | |
| Crystal (crystalline) arthritis / pseudogout / calcium pyrophosphate deposition (2) | |
