Answer
Selected product information reports that nasal decongestion begins within minutes.
Sources for this answer
- Otrivine Child Nasal Drops — Current selected SmPCemc · Summary of Product Characteristics
- Otrivine Adult Nasal Drops — Current selected SmPCemc · Summary of Product Characteristics
- Sudafed Blocked Nose Spray — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.