Nucynta although synthetic and has a half life of 4 hours will show up as a class 2 narcotic in a urine test. However don't count the half life in terms of it not being detected.Multiply the half life times 4 and then it will be 99.9% gone from your body.So at 50mg that would be roughly 7.4 days. 4 people found this useful.
Other Causes: Abrupt mood swings. Some of the less common causes of Abrupt mood swings may include: 1  Puberty. 2  Menopause. 3  Personality disorder. 4  Schizophrenia.
Causes of Mood Swings From Anxiety. Mood swings are one of those symptoms that may be a symptom of anxiety directly, or they may be a symptom of symptoms - in other words, for some people, other symptoms of anxiety cause so much distress that they cause mood swings, rather than the anxiety itself leading to mood swings.