Side effects of generic Avandaryl drug may include headache, sore throat, bone fracture, yellowing eyes/skin, stomach/abdominal pain, persistent nausea/vomiting, dark urine, easy bruising/bleeding, signs of infection (e.g., fever, persistent sore throat), mental/mood changes, seizures, vision changes (e.g., color or night vision problems). This medicine can provoke low blood sugar (hypoglycemia). Symptoms of hypoglycemia include chills, cold sweat, blurred vision, dizziness, drowsiness, shaking, rapid heart rate, weakness, headache, fainting, tingling of the hands/feet, and hunger.