Antimetabolites , fluoroquinolones , NSAIDS Flashcards
Antimetabolites
Sulfonamides
Trimethoprim
(Cotrimoxazole)
Sulfonamides examples
sulfamethoxazole , sulfasalazine , silver sulfadiazine
Sulfonamides MOA
Structural analogues of PABA , inhibit Dihydropteroate synthase = no FA = NO DNA/RNA
Sulfonamides treat
burns (SS) , IBS (sulfasalazine) ,
prophylaxis & pneumocytosis jiroveci (cotrimoxazole)
Malaria/ Toxoplasmosis(w/ pyrimethamine)
Sulfonamides ADVERSE
Teratogenic , hepatitis , NV , headache , depression , crystalluria , allergies , hives
Trimethoprim MOA
inhibits dihydrofolate in bacteria + humans
Trimethoprim treats
UTIs & LRTIs
Trimethoprim ADVERSE
teratogenic (1st trimester) , blood dyscrasias , Hyperkalemia
Fluoroquinolones example
Ciprofloxacin
Ciprofloxacin MOA
inhibits topoisomerase II & IV = no DNA synthesis
Ciprofloxacin effective
facultative , aerobic g-ve , g+ve , enterobacteriacae , NG , campylobacter , PA
Ciprofloxacin ineffective
MRSA
Ciprofloxacin treats
LRTIs , UTIs , Ext . Otitis , traveler’s diarrhea STDs , osteomyelitis , salmonella typhi carriers , prostatitis
Ciprofloxacin ADVERSE
teratogenic , seizures , QT prolongation , tendon damage , nephrotoxicity , hepatotoxicity
Ciprofloxacin CI
pregnant , children , Elderly + SSRI / macrolides users , w/ antacids / NSAIDS