Semi Synthetic Penicillin

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Penicillins have been considered as first-line drug for odontogenic infections. Amoxycillin, a semi synthetic penicillin is the drug of choice in treating dental infections and is the most common antibiotic used by dentists . If a patient with an early stage odontogenic infection does not respond to Amoxycillin , there is a strong probability of the presence of resistant bacteria. Bacterial resistance to the penicillins is a result of the production of beta-lactamase by the bacteria. therefore, beta-lactamase-stable antibiotics should be prescribed to the patient. These include either clindamycin or amoxicillin & clavulanic acid . the American Heart Association considers amoxicillin to be the first choice for prophylaxis against the Endocarditis associated with dental procedures. In long standing infections , gram negative anaerobic organisms may be suspected, therefore metranidazole may be added with amoxicillin. It can cause ‘Antabuse’ reaction such as nausea, vomiting, abdominal cramps in patients who consume alchohol during the medication period. Metronidazole's excellent anaerobic gram negative activity and its low degree of toxicity, make it an excellent drug in the treatment of odontogenic infections.
Cephalosporins are broader spectrum antibiotic …show more content…

Its efficacy in treating odontogenic infections is comparable to Penicillins . It has been used successfully to treat patients when therapy with other agents has failed . Several studies have demonstrated clindamycin's efficacy in preventing dry socket. Clindamycin's broad spectrum of coverage with excellent clinical efficacy, has prompted some standard drug guides to Antimicrobial Therapy to replace penicillin V with clindamycin as the drug of choice in treating odontogenic infections.28 . The American Heart Association recommends clindamycin, rather than erythromycin, to penicillin-allergic patients requiring endocarditis

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