Hemolytic anemia, thrombocytopenia, agranulocytosis. Sedation, sleepiness, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesia, blurred vision, diplopia, vertigo, tinnitus, acute labyrinthitis, neuritis, convulsions. Epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation. Urinary frequency, difficult urination, urinary retention, early menses. Thickening of bronchial secretions, tightness of chest and wheezing, nasal stuffiness.
Stimulation is particularly likely in children.
Stimulants should not be used. Vasopressors may be used to treat hypotension. If vomiting has not occurred spontaneously the patient should be induced to vomit. This is best done by having him drink a glass of water or milk after which he should be made to gag. Precautions against aspiration must be taken, especially in infants and children.