When do common medicines become dangerous or inefficient?

Abstract

Irrational prescriptions and ineffective use of drugs cause harm to the patient’s health, increase the financial costs of both the patient and the medical institution to remove the consequences of incorrect treatment, contribute to the occurrence of „drug disease”, unnecessarily burden the cost of treatment, increase the resistance of microorganisms ( due to irrational antibiotic therapy) and the lethality of patients due to serious infectious diseases usually lead to an increase in the frequency of side effects and complications of drug treatment. Realizing that harmless drugs do not exist, important and logical in rational pharmacotherapy, quite desirable, but also without unpleasant consequences, would be to know and inform with the most important moments, appeared in the process of using drugs, with the possible measures to prevent (avoid) them by answering the question „When do ordinary drugs become dangerous or do not work?”. Knowledge of the basic mechanisms of drug interactions, evidence of risk factors in performing pharmacotherapy, and a clearly arranged system of information on important clinical behaviors of drugs in various situations contribute to increasing the efficacy and harmless pharmacotherapeutic effect.