Pmoc Synthetic Drugs Flashcards
No piperazine quinolones
Nalidxic acid
Cinoxacin
Oxalimic acid
2nd class
Has piperazine
7th positin
Norfloxacin
Enoxacin
Ciprofloxacin
Ofloxacin
Lomefloxacin
Sparfloxacin
MOA of quinolones
Inhibition of DNA gyrase
Highly polar quinolones enter porins to cell
Ineffective to anaerobic gram-negative an
Antagonize gaba receptors
Unable to penetrate BBB
Interfere with DNA gyrase/ inhibit dna synth during bacteroa replication
Active against gram negative bacteria
Not effective to pseudomonas
7-hydroxymethyl metabolite is active
Tx UTI
Nalidixic acid
Action of First generation quinolone
Moderate gram-negative and minimal systemic distribution
Example of first gen quinolone
Cinoxacin nalidixic acid oxolinic acid
Action of second gen quinolones
Expanded gram negative and atypical pathogen coverage but limited gram-positive act
Example of second generation quinolones
Class I- lomefloxacin,norfloxacin and enoxacin
Class II- ofloxacin, ciprofloxacin