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| Methods | RCT (double‐blind randomised placebo‐controlled parallel study) |
| Participants | 37 participants |
| Interventions | Terfenadine, 60 mg twice daily, vs placebo vs hydroxyzine, 25 mg four times daily |
| Outcomes | Adverse effects including somnolence, therapeutic use |
| Notes | Unable to locate a copy at this time for further assessment |
