Diphenhydramine / hydrocodone / phenylephrine Side Effects
Applies to diphenhydramine / hydrocodone / phenylephrine: oral suspension extended release, oral syrup
Nervous system side effects have included lightheadedness, nervousness, dizziness, drowsiness, sedation, mental clouding, headache, insomnia, tremors, weakness, lethargy, hallucinations, convulsions, impairment of mental and physical performance, anxiety, fear, dysphoria, psychic dependence, itchy and prickly sensations, and mood changes.[Ref]
Respiratory side effects have included respiratory difficulty and shortness of breath.[Ref]
Ocular side effects have included blurring of vision.[Ref]
Dermatologic side effects have included rare reports of dermatitis.[Ref]
1. "Product Information. Tussinate (diphenhydramine / hydrocodone / phenylephrine)." PediaMed Pharmaceuticals Inc, Florence, KY.
Some side effects may not be reported. You may report them to the FDA.