Brompheniramine / dihydrocodeine / phenylephrine Side Effects
Nervous system side effects have included light-headedness, dizziness, drowsiness, headache, fatigue, sedation, hallucinations, vivid dreams, severe narcosis, lassitude, giddiness, increased irritability or excitement.[Ref]
Dermatologic side effects have included pruritis.[Ref]
Ocular side effects have included miosis and blurred vision.[Ref]
Renal side effects have included granulomatous interstitial nephritis and acute renal failure.[Ref]
Hypersensitivity side effects have included anaphylactoid reactions.[Ref]
1. "Product Information. Poly-Tussin DHC (brompheniramine / dihydrocodeine / phenylephrine)." Poly Pharmaceuticals Inc, Quitman, MS.
Some side effects may not be reported. You may report them to the FDA.