| Reaction | |
|---|
| Schizophrenia (13) | |
| Sedation (107) | |
| Seizures (331) | |
| Sensory disturbances (7) | |
| Serotonin syndrome (59) | |
| Sexual fantasies (1) | |
| Shivering (33) | |
| Shock (20) | |
| Sleep apnea (3) | |
| Sleep disturbances (52) | |
| Sleep related disorder (56) | |
| Slurred speech (9) | |
| Somnambulism (16) | |
| Somnolence (drowsiness) (346) | |
| Speech disorder (17) | |
| Spinal cord compression (2) | |
| Spinal cord infarction (1) | |
| Status epilepticus (36) | |
| Status gelasticus (3) | |
| Stroke (79) | |
| Stupor (7) | |
| Stuttering (3) | |
| Subarachnoid hemorrhage (9) | |
| Subdural hemorrhage (10) | |
| Suicidal ideation (102) | |
| Syncope (178) | |
