After reading this article you will learn about the parental preparations of drugs. The systemic absorption of a drug from an extra vascular site is influenced by the anatomic and physiologic properties of the site and the physicochemical properties of the drug and the drug product. If a drug is given by the i.v. route, systemic drug absorption is considered [...]
Here is a list of top three antibiotics:- 1. Penicillins 2. Tetracyclines and Chloramphenicol 3. Streptomycin. 1. Penicillins: Penicillins, a group of several penicillin, differ from one another in the side chain attached to its amino group. Most of these penicillins are 6-aminopenicillanic acid derivatives and all have β-lactam ring which is responsible for the antibiotic activity (Fig. 20.16). Pencillin [...]
In this article we will discuss about the features and mechanisms of antimicrobial drugs. Features of Antimicrobial Drugs: Some of the features of antimicrobial drugs are given below: (a) Antibiotics are biologically active against a large number of organisms even in extremely low concentration. It is interesting to observe that 0.000001 g/ml of penicillin G has a pronounced effect on [...]