| Symptom | Frequency (%) |
| Weakness, tiredness, fatigue | 100 |
| Anorexia | 100 |
| Gastrointestinal symptoms | 92 |
| Nausea | 86 |
| Vomiting | 75 |
| Constipation | 33 |
| Abdominal pain | 31 |
| Diarrhea | 16 |
| Salt craving | 16 |
| Postural dizziness | 12 |
| Muscle or joint pains | 6 to 13 |
| Sign | |
| Weight loss | 100 |
| Hyperpigmentation | 94 |
| Hypotension (systolic BP <110 mmHg) | 88 to 94 |
| Vitiligo | 10 to 20 |
| Auricular calcification | 5 |
| Laboratory abnormality | |
| Electrolyte disturbances | 92 |
| Hyponatremia | 88 |
| Hyperkalemia | 64 |
| Hypercalcemia | 6 |
| Azotemia | 55 |
| Anemia | 40 |
| Eosinophilia | 17 |
