Clindamycin
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Clindamycin is a lincosamide antibiotic used to treat serious infections caused by susceptible anaerobic, streptococcal, staphylococcal, and pneumococcal bacteria.
Clindamycin is a lincosamide antibiotic used to treat serious infections caused by susceptible anaerobic, streptococcal, staphylococcal, and pneumococcal bacteria.
Clindamycin inhibits bacterial protein synthesis by binding to 23S RNA of the 50S subunit of the bacterial ribosome. It impedes both the assembly of the ribosome and the translation process. The molecular mechanism through which this occurs is thought to be due to clindamycin's three-dimensional structure, which closely resembles the 3'-ends of L-Pro-Met-tRNA and deacylated-tRNA during the peptide elongation cycle - in acting as a structural analog of these tRNA molecules, clindamycin impairs peptide chain initiation and may stimulate dissociation of peptidyl-tRNA from bacterial ribosomes. The mechanism through which topical clindamycin treats acne vulgaris is unclear, but may be related to its activity against Propionibacterium acnes, a bacteria that has been associated with acne.
In oral and parenteral formulations, clindamycin is indicated for the treatment of serious infections caused by susceptible anaerobic bacteria, as well as susceptible staphylococci, streptococci, and pneumococci. Used topically, it is indicated for the treatment of acne vulgaris and is available in combination with benzoyl peroxide or tretinoin for this purpose, or as a triple combination therapy with benzoyl peroxide and adapalene. Clindamycin is also indicated as a vaginal cream, suppository, or gel for the treatment of bacterial vaginosis in non-pregnant females. Clindamycin is used for antimicrobial prophylaxis against Viridans group streptococcal infections in susceptible patients undergoing oral, dental, or upper respiratory surgery, and may be used for prophylaxis against bacterial endocarditis in penicillin-allergic patients at high risk of these infections.
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