The Hospital Gregorio Marañón of Madrid is one of the few centers in Spain which has a Detoxification Unit integrated in a Psychiatric Service within a General Hospital.

It has got six beds, one Psychiatrist, one nurse and one nurse asistant, and one ocupational therapist.

This is a voluntary admission unit designed especially for drug abusers presenting health problems, since most of them are suffering liver diseases and many of these are under antiretroviral treatment fot HIV.

Patients are sent from the Anti-drug Agency of the Comunity of Madrid whom centralizes all the medical and social resources of the drug dependency network: CAD, CAID (centres for integral attention to drug addicts), emergency social centers, detoxification units, therapeutic communities, support flats and the "metabus"(vehicle for distribution of methadone).

When our patients are discharged from the unit is also the Anti-drug Agency the sole responsible for seeking a place where they can continue their treatment.

The authors want to submit the data describing the patients treated in the Unit during 2007.

The variables that will be exposed are: gender, average age, average stay, number of patients in methadone maintenance program and drug-free program.

Porcentaje of each of the ilegal substances, depending of them being in a MMP (methadone maintenance program) or DFP (drug free program): methadone, heroin, cocaine, cannabis, alcohol, benzodiazepine…and place they are derived to after leaving our unit (CAID, terapeutic community and/or support flats).