Antibacterial agents definition

Almost all antibacterial agents have been observed to cause diarrhea in a variable proportion of patients (114,115). The proportion depends not only on the antibiotic, but also on the clinical setting (in-patient/out-patient), age, race, and the definition of diarrhea. Severe colonic inflammation develops in a variable proportion of cases, and in some cases pseudomembranous colitis occurs (116-121). Since 1977, much evidence has accumulated that the most important causative agent in antibiotic-associated diarrhea is an anaerobic, Gram-positive, toxin-producing bacterium, C. difficile (122-124). 

Thus, in the field of macrocyclic chemistry it is apparent that there can be a definite continuum from natural product structures to totally synthetic molecules that perform the same pharmacological tasks, aside from perhaps antibiotics, though that area may yet be conquered as shown by the success of the bicyclic, but not yet macrocyclic, quinolone-based antibacterial agents colloquially known as floxacins . ... 

Chemotherapy is the use of drugs to injure an invading organism without injury to the host. This definition therefore covers the antibacterial, antiviral and anticancer agents. In the first two, the invading organism is clearly distinct from the host. In the case of cancer, a family of diseases characterized by uncontrolled cellular proliferation, the organism is strictly not different but the treatment has a common aim, that of elimination of the unwanted cells. Thus, chemotherapeutic... 

Chitosan, hydroxypropyl. See Hydroxypropyl chitosan Chitosan lactate CAS 66267-50-6 146227-11-4 Synonyms Chitosan, 2-hydroxypropanoate salt Chitosan, lactic acid salt Definition Lactic acid salt of chitosan Uses Biological additive, film-former in cosmetics deodorant agent, antibacterial for deodorant lotions, mouthwash, aftershave lotions... 

Definition Extract derived from Cinchona spp. Uses Natural flavoring agent in foods medicine (analgesic, anesthetic, antibacterial, antimalarial, antimicrobial, antipyretic, astringent, bactericide, fungicide, febrifuge. 

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