In the past ten years the antibiotic utilization in our Country has been increasing steadily for a group of determined antibiotics ie cotrimoxazole, being its DDD 1,84 in 1984 and 3,68 in 1994, we can say it triplicates, other drugs maintain a very high utilization rates as tetracyclines and penicillines.

Some studies have been performed in primary care which point out that the most used antibiotics by DDD measures are Penicilline, Cephalosporine and Metronidazole.

Even though, we do not know which are the diagnosis that lead to this prescription and whether they are correctly used or not.