Mild and severe depressive disorders according to ICD-10 codes F32.0, F33.0, F32.2, F33.2, F32.3, and F33.3
Bipolar disorders according to ICD-10 codes F 31.x
Comorbidity from alcohol or drug dependence according to ICD-10 codes F10-F19
Suicidal risk (assessed by item 10 of the Montgomery Asberg depression rating scale)
Long term prophylaxis with lithium or carbamazepine
Non-sufficient washout phase of previous psychotropic drug
Any interfering psychotropic drug taken concurrently
Any previous long term (>3 months) treatment with benzodiazepines
Patients at general and specific risk (imipramine contraindications)