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Atypical overdose presentations at a supervised injection site, Vancouver, Canada (2016–17)
| Atypical overdose presentation | Number of cases | Percentage of total atypical overdose presentations | Percentage of total overdose presentations |
|---|---|---|---|
| Muscle rigidity | 240 | 48.30% | 15.2% |
| Dyskinesia | 150 | 30.2% | 9.5% |
| Low or irregular heart rate | 69 | 13.9% | 4.4% |
| Confusion or delirium | 24 | 4.80% | 1.5% |
| Anisocoria | 2 | 0.40% | 0.1% |
| Other | 12 | 2.4% | 0.8% |
