| Iron isomaltoside | Oral iron | ||
| AEs, n (%) | SAEs, n %) | AEs, n (%) | SAEs, n %) |
Rash | 5 (5.1%) | - | - | - |
Arthralgia | 2 (2.0%) | - | - | - |
Hyperpigmentation of the skin | 2 (2.0%) | - | - | - |
Dyspnea | 1 (1.0%) | - | - | - |
Anaphylaxis | 1 (1.0%) | 1 (1.0%) | - | - |
Constipation | - | - | 7 (5.4%) | - |
Abdominal pain | - | - | 5 (3.9%) | - |
Nausea | - | - | 5 (3.9%) | - |
Diarrhea | - | - | 3 (2.3%) | - |