Pharmacology for Dentistry

(Ben Green) #1
Aminoglycosides Antibiotics 329

AMIKACIN


It is semisynthetic derivative of
kanamycin. It is active against gentamicin
resistant organisms e.g. Pseudomonas
aeruginosa, Klebsiella, E. coli and Proteus. It is
resistant to bacterial aminoglycoside
inactivating enzymes.


It is indicated in bacteriaemia, septicae-
mia; respiratory tract, bones and joints, CNS
(including meningitis), skin, soft tissue,
intraabdominal infections (including perito-
nitis); burns and postoperative infections.


Adverse effects include hypersensitivity
reactions, nausea, vomiting, nephrotoxicity, oto-
toxicity, headache and neuromuscular blockade.


KANAMYCIN


It is derived from Streptomyces
kanamyceticus. It is active against Pseudomo-


nas, but due to severe ototoxicity and neph-
rotoxicity, it is replaced by other
aminoglycosides and occasionally used in
multidrug resistant cases of tuberculosis.

NEOMYCIN
It is isolated from Streptomyces fradiae
and is effective against most gram negative
bacilli and some gram positive cocci.
Because of its high ototoxicity and
nephrotoxicity, it is not used systemically
and used locally in various skin and eye
infections.

FRAMYCETIN
It is derived from Streptomyces lavendule.
It is similar to neomycin and used locally in
various skin infections and eye/ear
infections.



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