Stop using Otrivin and seek medical help immediately if one of the following signs is noticed, as it could be an allergic reaction: Difficulty breathing or swallowing; swelling of face, lips, tongue and/or throat area; strong itching with red rash and/or elevations on the skin; irregular heartbeat.
Common side effects (in 1 to 10 out of every 100 patients): Nasal dryness and irritation, nausea, headache and local burning sensation.
Very rare side effects (less than 1 out of every 10,000 patients): Allergic reactions (skin rash, itching), temporarily blurred vision, irregular or accelerated heartbeat, drug-related nasal mucosal swelling (Rhinitis medicamentosa).
In case of side effects that are not mentioned in the monograph, patient should tell the doctor or pharmacist.