Allergic reactions (including skin rash, itching, hives, angioedema), dizziness, falling asleep, increased excitability, mydriasis; increased blood pressure, tachycardia; nausea, vomiting, epigastric pain; dry mouth; retention of urine, paresis of accommodation, increased intraocular pressure; anemia, thrombocytopenia, agranulocytosis, hemolytic anemia, aplastic anemia, methemoglobinemia, pancytopenia; hepatotoxic effect, nephrotoxicity (papillary necrosis); bronchial obstruction.