When choosing antimicrobial drugs that are susceptible to infection, and then. Also to consider the drug's pharmacokinetics absorption include: dispersion changing weather elimination and medication drug. It also depends on the way the drug dose, duration of the period of time between meals, drug dosage to dose level, with areas that are infected with active ingredient high enough to destroy the fuel. It is higher than the lowest dose levels that inhibit the infection (minimum inhibitory concentration MIC,) at the same time, the concentration of the drug in plasma and tissues of various. Must be lower than the levels that are dangerous? The disease is often mild cases, eating pills instead of injections, so that effective drug treatment eating that drugs should be selected, whether before or after eating food high in plasma levels of the drug, or the drug levels in various tissues, high enough to destroy the active ingredient and are long enough for the treatment of infectious disease so. In addition, the drug should be eaten only 1-2 times per day, so it will make the patient receives medications size.