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 Behavior changes. Introduction: Behavior changes. Mental health disorders are common causes of behavioral changes. These include delusional disorders, psychosis, anxiety, depression, bipolar disorder and schizophrenia. Alcohol intoxication can cause behavior changes as can alcoholism, drug addiction and the use of certain drugs.