Anti Folate Flashcards
Sulfonamides moa
Inbit dihydropteroate SYNTHASE
Structural analogs of paba
Sulfonamides
Oral, absorbable short acting sulfonamide
Sulfisoxazole
Sulfisoxazole use
used almost exclusively for UTI
Oral, absorbable intermediate acting sulfonamide
Sulfadiazine
Sulfamethoxazole
Oral, absorbable long acting sulfonamide
Sulfadoxine
Oral, non absorbable sulfonamide
Sulfasalazine
Topical sulfonamides
Sodium sulfacetamide
Malenide acetate
Silver sulfadiazine
Sulfadiazine + pyrimethamine + folinic acid
Toxoplasmosis
Leishmaniasis
Sulfadoxine + pyrimethamine
Malaria tx
Trimethoprim + sulfamethoxazole
DOC for pneumocystis jiroveci pneumonia
Toxoplasmosis
Nocardiosis
Sulfasalazine use
Not absorbed, acts locally, so use in GI lesions like ulcerative colitis and enteritis
Topical tx for bacterial conjunctivitis and trachoma
Sodium sulfacetamide
Topical sulfonamide that inhibits carbonic anhydrase causing met acidosis
Mafenide acetate
Topical sulfonamide for burn wounds
Silver sulfadiazine
Causes stevens johnson syndrome
Sulfonamides
Other adrs of sulfonamides
Crystalluria, hematuria, obstruction
Hematopoiesis influence
Kernicterus
Bleeding with warfarin interaction
Combination ratio of trimethoprim and sulfonamides
1:5
less tri needed because it is more lipid soluble
Sequential synergistic blockade exhibited by
Trimethoprims when it follows sulfonamides
Synthetic fluorinated analogs of nalidixic acid
Fluoroquinolones
Fluoroquinolones MOA
Inhibits bacterial topoisomerase II (dna gyrase) and topoisomerase IV (separation of replicated dna into daughter cells)
First gen fluoroquinolone
Nalidixic acid
Second gen fluoroquinolone
Norfloxacin
Third gen fluoroquinolone
Ciprofloxacin
Levofloxacin
Ofloxacin
Fourth gen fluoroquinolone
Moxifloxacin
Fluoroquinolone with 3 hr half life
Norfloxacin
Ciprofloxacin
Fluoroquinolone with 10 hr half life
Perfloxacin
Fleroxacin
Fluoroquinolone with long half life
Sparfloxacin
Levofloxacin
Moxifloxacin
Trovafloxacin
L isomer of ofloxacin
Levofloxacin
Fluoroquinolone pulled out bc lots if cardiovascular adrs
Gatifloxacin
DOC px and tx anthrax
Ciprofloxacin
Fluoroquinolone for gonococcal and chlamydia
Ciprofloxacin and levofloxacin
Fluoroquinolone for drug resistant tb and atypical mycobacterium
Cipro
Levo
Moxi
Respiratory quinolones
Levo
Gati
Gemi
Moxi
Gatifloxacin adrs
Qt prolongation, torsades de point
Hyper and hypogly
Inhibit collagen synthesis, tendinitis
Protozoan infections with metronidazole as DOC
Entamoeba histolytica
Giardia lambia
Trichomonas vaginalis
Anaerobic infections with metronidazole as DOC
Bacteroides fragilis
Clostridium difficile
Giardia vaginalis
With the ff adrs - metallic taste, brown black urine, disulfiram like
Metronidazole
Antibiotics for h pylori ulcers
Amoxicillin
Clarithromycin
Tetracycline
Metronidazole