Passiflora Extract for Benzodiazepine Withdrawal

Inclusion Criteria: 1. Age \> 65 years old 2. Stable dose of benzodiazepines during last 3 months ( 4mg loracepam per day or equivalent) 3. Capable of giving consent and to answer the questionnaires according to researcher criteria Exclusion Criteria: 1. Diagnosis of dementia moderate or severe (Test Minimental ≤ 20). 2. Acute confusional syndrome at the inclusion 3. Panic disorder 4. Obsesive-compulsive disorder 5. Any type of psycosis or bipolar disorder 6. Severe Parkison disease diagnosed 7. Current or past diagnosis of epilepsia 8. Recent stroke (last month) 9. Thyroid disorders not controlled or uncompensated 10. Alteration of deglutition 11. Previous drugs or alcohol abuse 12. Hospitalization (more than 24 hours) during the last month 13. Complex priority treatment (dialisis, chemotherapy...) 14. Life expectation less than 1 year 15. Benzodiazepines therapeutic uses not for anxiety or insomnio