| Clear evidence for effectiveness |
| Supportive care |
| Supplemental oxygen |
| Possibly effective |
| Nebulized ipratropium bromide (Atrovent) with or without nebulized albuterol (Proventil)* |
| Oral or inhaled corticosteroids † |
| Parenteral dexamethasone † |
| Nebulized epinephrine ‡ |
| Possibly effective for most severe cases |
| Helium-oxygen combination |
| Surfactant |
| Probably ineffective |
| Aerosolized ribavirin (Virazole) |
| Antibiotics (unless patient has a clear focus of bacterial infection) |
| Nebulized furosemide |
| RSV-IG (RespiGam) |
| Inhaled interferon alfa-2a (Roferon-A) |
| rhDNase |