In this review paper, metabolism of most used inhaled halogenated anesthetics (halothane, enflurane, isoflurane, desulfurane and sevoflurane) is shown Only part of the anesthetics is metabolized, while the remainder is eliminated unchanged. They are metabolized by mixed function oxidases (reductive or oxidative pathways). 

An anonimous poll was conducted, which included pharmacists employed in state and private pharmacies from Novi Sad, Backa Palanka, Bac, Temerin and Odžaci (South Backa district). The group polled was a representative sample compared to the overall pharmacists number. The poll was conducted due to the fact that routine health statistics does not provide enough representative data on drug accessibility to patients and to try to answer how administrative limits interfere with the choice of medicaments. Obtained results suggest that the biggest problem is the lack of A list medicaments, so the patients are forced to buy medicaments in private pharmacies or even in the neighboring countries. The majority of the pharmacists polled are of the opinion that the participation in state pharmacies is low. There are no significant differences in the opinion of the pharmacists from both state and private pharmacies concerning the medicament consumption, both groups are of the opinion that we are facing excessive medicament consumption, above the real need.

A survey was made among the employees of the Health Centre Novi Sad. It included 237 people, of which 99.6% were health workers and 0.4% administrative workers. Among the respondents 8.4% occupied a managing post. The questionnaire included the issues relating to the satisfaction of the employees with working conditions, work-associated fatigue, comparison of the job satisfaction five years ago and now, plans for the next five years, and overall job satisfaction. Based on the answers of the respondents it comes out that only 36.3% of the health workers are satisfied and very satisfied with their jobs, which is a very small percentage regarding the nature of the work they do. However, 42.2% of health workers plan to remain in the public sector in the next five years, and 41.8% do not even think about changing the job. This was logical to expect bearing in mind the material position of the health care and overall economic situation in the society. 

An anonymous poll was conducted, targeting medics in health institutions in the area of Novi Sad, Bačka Palanka, Bač, Temerin and Odžak (south Bačka region). Doctors involved in this survey are representative sample of the total population. Aim of the survey was to analyse drugs prescription and use in modern medicine, as well as to determine the extent of compliance of general medicine doctors with modern pharmacotherapy requirements. Results show that more than a half of doctors feel that the positive list corresponds to real needs, and that the price of medicaments and participation is low. Also, they believe that the drug consumption exceeds real needs. The high percent of medics does not have sufficient knowledge of the modern pharmacotherapy attitude towards the certain drugs use, which demonstrates the lack of continuing education in the field.

Drugs prescription and drugs accessibility are among the most important drug use related topics. A patients questionnaire was conducted in the area of Novi Sad, Bačka Palanka, Bač, Temerin and Odžak (all in South Bačka region), because the routine medical statistics does not provide all neccessary data about the drugs availability. It is demonstrated that pressure and expectations of patients and doctor-patient relationship influence the choice of drugs to be prescribed. Positive list drugs deficiency represent a great problem, forcing patients to buy drugs in private-owned stores or abroad.

Defined daily dose (DDD) is arbitrary chosen technical unit for measuring medicament usage and it is not a recommended therapeutic dose. It is in fact a statistical parameter for monitoring medicaments usage, and it is related to the
dose which is usually prescribed for the indication that the medicament was registered for. The aim of this work is to perform a detailed analysis of the extent and structure of the region of South Backa. According to the obteined data, medicaments
used in treatment of gastroinestinal tract contributed with 15.52 DDD/1000 inhabitants per day. Most commonly used are antacids and anti-ulcer drugs (8.14 DDD/1000 inhabitants per day). Medicaments used in treatment of muscular and skeletal
system contributed with 14.30 DDD/1000 inhabitants per day. Antiinflammatory and antirheumatic drugs sre used in amounts of 14.18 DDD/1000 inhabitants per day. In our country there is no complex survey of drug usage because there is no way of monitor ing which could apprehend all possible information sources. Defined daily dose is not introduced into practical qualitative and quantitative monitoring. It is necessary to make systematic network of information sources to provide for insight into medicament usage

Defined daily dose (DDD) is arbitrary chosen technical unit for measuring medicament usage and it is not a recommended therapeutic dose. It is in fact a statistical parameter for monitoring medicaments usage, and it is related to the dose which is usually prescribed for the indication that the medicament was registered for. The aim of this work is to perform a detailed analysis of the extent and structure of the region of South Backa. Antiinfective medicaments in systematic use, according to the obtained data, participate with only 7.96 DDD/1000 inhabitants. The most applied pharmacotherapeutic subgroup with 2.99 DDD/1000 inhabitants is comprised of cephalexine and cephachlor.