Otrivine Adult Metered Dose 0.1% Nasal Spray For Relief From Hay Fever Symptoms 10ml Otrivine Adult Metered Dose 0.1% Nasal Spray provides relief from the symptoms of nasal congestion due to colds, sinusitis & allergies, such as hay fever. Each application delivers a measured dose which works within minutes to clear a blocked nose & relieve excessive nasal secretions for up to ten hours.