What are the possible side effects of brompheniramine, codeine, and phenylephrine (Poly-Tussin AC)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop using this medication and call your doctor at once if you have any of these serious side effects: • fast or pounding heartbeat; • feeling like you might pass out; • confusion, loss of coordination, unusual thoughts or behavior; • severe dizziness, anxiety, restless feeling, or nervousness; • increased cough, chest tightness; • shallow breathing, slow heartbeat; • easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms; • seizure (convulsions); or • painful or difficult urination. Less serious side effects may include: • dizziness, drowsiness, tired feeling; • feeling excited or restless; • sleep problems (insomnia); • nausea, vomiting, diarrhea, constipation; • dry mouth, nose, or throat; • warmth, numbness, or tingly feeling; • increased sweating or urination; • blurred vision, dry eyes; • ring