1. Initiated in the Emergency Department (ED):

   1. Review of home medication and medication reconciliation based on Primary Care data
   2. Patient interview. Assessment of the patient's knowledge on the pharmacological treatment
   3. Development of the pharmacological history and registration in the medical record
   4. Adequacy of drug therapy. Identification of Drug Related Problems including reconciliation errors (DRP) and communication to medical team
   5. Pharmacotherapy monitoring
   6. Treatment validation and medication reconciliation at discharge

2. During the hospitalization (if admission from the ED):

   1. Treatment review and medication reconciliation
   2. Pharmacokinetics monitoring
   3. Retrospective validation of prescriptions and assessment of drugs appropriateness. DRP identification and communication to medical team
   4. Pharmacotherapy monitoring
   5. Validation and medication reconciliation at discharge
   6. Patient education at discharge

Stages:

1. Pharmaceutical care program in the episode at the Emergency Department:

   a. There was no monitoring of the patient by the pharmacist. Retrospective validation of the prescriptions was not performed.

2. During the hospitalization (if admission from the ED):

   1. Pharmacokinetics monitoring
   2. Retrospective validation of prescriptions and assessment of drugs appropriateness.

Intensive pharmaceutical care program, initiated in the emergency department, as described in its corresponding arm intervention description.

Patient health outcomes that are not consistent with the objectives of pharmacotherapy and are associated with the use or errors in the use of medicines

Patients who died during the following 6 months after inclusion

Duration of the stay (in hours) from the emergency episode until discharge from the hospital

Number of visits (emergency department/hospitalization) due to HF and/or COPD decompensation after the first episode (inclusion in the study), in the next 1180 days.

Average money spent per patient in Euros.