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Side effects associated with regadenoson versus adenosine.
| Symptom | Regadenoson | Adenosine | P-value |
|---|---|---|---|
| Flushing | 115 (56.7%) | 131 (73.2%) | 0.001 |
| Dyspnea | 82 (40.4%) | 55 (30.7%) | 0.049 |
| Chest pain | 65 (32.0%) | 74 (41.3%) | 0.059 |
| Headache | 44 (21.7%) | 38 (21.2%) | Ns |
| Nausea | 35 (17.2%) | 29 (16.2%) | Ns |
| Dizziness | 12 (5.9%) | 12 (6.7%) | Ns |
| AV-block | 1 (0.5%) | 21 (11.2%) | <0.001 |
| Use of aminophylline | 2 (1.0%) | 2 (1.1%) | Ns |
