Addison's disease, bronchial asthma , acute alcoholism, respiratory depression , prostatic hypertrophy , urethral stricture, and general debilitation. Other side effects of codeine have included withdrawal symptoms after either abrupt cessation or fast tapering of narcotic analgesics, including codeine, and have included agitation, restlessness, anxiety, insomnia, tremor, abdominal cramps, blurred vision, vomiting