Intravenous immunoglobulin preparations are an effective therapy in several processes: primary and secondary immunodeficiencies, autoimmune and inflammatory disorders, infectious diseases and allergies, among others. This biological medicine must comply with three conditions: clinical tolerance, therapeutic efficacy and viral safety.The aim of this study was to assess the therapeutic efficacy, clinical tolerance and viral safety of a regional intravenous immunoglobulin, manufactured by the Hemoderivatives Laboratory of the National University of Cordoba in Argentina (Inmunoglobulina G Endovenosa UNC), with plasma obtained from voluntary, unremunerated donors from Argentina, Chile and Uruguay.The pharmacovigilance records of 448 infusions in 111 patients with different diseases were statistically evaluated. Clinical tolerance was evaluated by recording of adverse events, therapeutic efficacy was evaluated by taking into account the specific parameters of each disease, and viral safety was evaluated by analysis of serological markers of hepatitis B, hepatitis C and human immunodeficiency viruses before and after infusion.Adverse effects were observed in 4.6 % of total infusions, of which 3.1 % were mild, 1.3 were moderate and 0.2 % were severe. The therapeutic efficacy of the product was recorded in all diseases in which it was administered. Regarding viral safety, no seroconversions were registered in any of the records evaluated.The results of this study indicate that Inmunoglobulina G Endovenosa UNC is well tolerated, with good therapeutic efficacy and viral safety.