| Reaction | |
|---|
| Mastalgia (see breast pain) | |
| Muscle atrophy (4) | |
| Muscle spasm (111) | |
| Muscle weakness (2) | |
| Muscular paralysis (5) | |
| Musculoskeletal (non-cardiac) chest pain (3) | |
| Musculoskeletal adverse effects (2) | |
| Musculoskeletal pain (21) | |
| Musculoskeletal stiffness (1) | |
| Myalgia/Myositis/Myopathy/Myotoxicity (see also necrotizing myopathy) (578) | |
| Myasthenia gravis (60) | |
| Myoclonus (59) | |
| Myofasciitis | |
