Dosage
        Phenylephrine (HCl)'s dosage details are as follows:
        
            
                | Dose
                 | 
                Single Dose
                 | 
                Frequency
                 | 
                Route
                 | 
                Instructions
                 | 
            
            
                
                    Adult Dosage
                 | 
            
            | 0.25 to 0.5 % | 0.38 (0.375) | 4 hourly | Nasal | As Required | 
| 10 % | 10 (10) | As recommended. | Ophthalmic | drops | 
            
                
                    Paedriatic Dosage (20kg)
                 | 
            
            | 0.25 to 0.5 % | 0.38 (0.375) | 4 hourly | Nasal | As Required | 
            
                
                    Neonatal Dosage (3kg)
                 | 
            
            | 0.25 to 0.5 % | 0.38 (0.375) | 4 hourly | Nasal | Not recommended under 3 months of child |