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PHAR100 Section D
D1
38
Pharmacology
Undergraduate 1
04/17/2012

Additional Pharmacology Flashcards

 


 

Cards

Term
Antibiotic
Definition
Chemical substance produced by microorganisms suppress growth of other microorganisms
Term
Bactericidal
Definition
Destroy microorganisms
Term
Bacteriostatic
Definition
Prevent multiplication of microorganism
Term
Mechanism of Action of Penicillin
Definition
Prevents new bacterial wall formation, protoplasts
Term
Penicillin G
Definition
From Penicillium mold, naroow spectrume mainly gram-positive

Treat pneumoniae, middle ear infection, skin infection, meningitis, syphilis
Term
Penicillin V
Definition
More acid stable, oral administration
Term
Cloxacillin
Definition
Resistant to penicillinase
Term
Ampicillin and Amoxacillin
Definition
Broader spectrum than penicillin G, active against several gram-negative bacteria
Term
Carbenicillin
Definition
Broader spectrum than ampicillin and amoxacillin, semisynthetic penicillin
Term
Adverse Effects of Penicillins
Definition
Allergic reactions
Term
Augmentin
Definition
Combination of amoxacillin and clavulinic acid (inhibitor of penicillinase)
Term
Cephalosporins
Definition
Antibiotics chemically simialr penicillins, more resistance penicillinase, selective inhibitors of bacterial cell wall synthesis
Term
First generation: Cephalothin
Definition
Good activity against gram-positive and moderate against gram-negative
Term
Second generation: Cefamandole
Definition
Increased activity against gram-negative
Term
Third generation: Ceftriaxone and cefotaxime
Definition
Less active against gram-positive that first generation but more active against gram-negative

Ceftriaxone treat gonorrhea
Ceftriaxone and cefotaxime treat menigitis
Term
Fourth generation: cefepine
Definition
Increased stability to penicillinase, borader spectrum than third generation
Term
Vancomycin
Definition
Effective against staphylococci, inhibit cell wall formation, orally for C difficile
Term
Fluoroquinolones
Definition
Ciprofloxacin
Oral or intravenous treat gram positive and negative
Inhibit bacterial DNA synthesis
Term
Erythromycin
Definition
For those allergic to penicillin, treat grma-positive or negative
Selectively inhibits bacterial protein synthesis
Term
Azithromycin and Clarithromycin
Definition
Modified erythromycin
More expensive but less frequent administration and gastrointestinal problems, penetrate into tissues well
Term
Teracyclines
Definition
Broad spectrum, inhibit protein synthesis
Resistance
Cause discolouration of teeth and diminish bone growth, not used in pregnancy or under 12
Long time, deteriorate into toxic degradation products
Term
Chloramphenicol
Definition
Broad spectrum bacteriostatic
Causes rare fatal bone marrow failure
Term
Aminoglycosides
Definition
Gentamicin and Streptomycin
Term
Streptomycin
Definition
Effective against gram-negative bacteria, toxic effects, first to treat tuberculosis
Term
Gentamicin
Definition
Treat sever gram-negative bacteria
Toxic effects: kidney damage, deafness, loss of balance, vertigo
Term
Treatment Tuberculosis
Definition
Isoniazis and rifampin for 6mo daily, pyrazinamide first 2mo
Term
Co-trimoxazole
Definition
Consist of sulfamethoxazole and trimethoprim

Sulfamethoxazole inhibits para-aminobenzoic into dihydrofolic
Trimethoprim inhibits dihydrofolic acid reductase
Inhibit tetrahydrofolic acid formation, essential for DNA and protein synthesis

More inhibitory to bacteria than humans

Treat recurrent bacterial infection urinary tract, respiratory, gastrointestinal
Term
Amphotericin B
Definition
Treat severe fungal infections, binds to steroid outer membrane, causes pore (leakage)

Adverse effects: kidney toxicity
Term
Imidazoles
Definition
Ketoconazole, fluconazole, itraconazole

Oral, inhibit ergosterol synthesis needed for cell membrane, inhibits fungal cytochrome P450

Treat yeast infection
Term
Amantidine
Definition
Prevention of influenza A
Term
Oseltamivir
Definition
Neurominidase inhibtor, prevent neighbouring cells from being infected
Term
Acyclovir
Definition
Treatment serious infections by herpes simplex virus

Long term use decrease frequncy of recurrence of genital herpes

Used to treat infections by varicella-zoster virus, chicken pox and shingles
Term
Chloroquine
Definition
Prevention of malaria

Treatment of malaria due to plasmodium vivax, ovale, malariae

Adverse effects: nausea, headache, difficulty focussing in eyes
Term
Mefloquine
Definition
Prevention of malaria where resistant to chloroquine

Adverse effects: vertigo, seizures and psychosis
Term
Quinine
Definition
More toxic, less effective than chloroquine

Oral and intravenous

Adverse effects: ringing in ears, nausea, headache, disturbed vision
Term
Doxycycline
Definition
Photosensitizing
DO not use when pregnant, under 12
Term
Primaquine
Definition
Prevent relapse due to persistent liver phase of vivax or ovale
Term
Inhibitors of folate synthesis
Definition
Pyrimethamine related to trimethoprime, combination treatment and prevention
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