Antibiotics by Class
| Generic Name |
Brand Names |
Common Uses2 |
Possible Side Effects2 |
Mechanism of action |
| Aminoglycosides |
| Amikacin |
Amikin |
Infections caused by Gram-negative bacteria, such as Escherichia coli and Klebsiella particularly Pseudomonas aeruginosa. Effective against Aerobic bacteria (not obligate/facultative anaerobes). |
|
Binding to the bacterial 30S ribosomal subunit (some work by binding to the 50S subunit), inhibiting the translocation of the peptidyl-tRNA from the A-site to the P-site and also causing misreading of mRNA, leaving the bacterium unable to synthesize proteins vital to its growth. |
| Gentamicin |
Garamycin |
| Kanamycin |
Kantrex |
| Neomycin |
Mycifradin |
| Netilmicin |
Netromycin |
| Streptomycin |
|
| Tobramycin |
Nebcin |
| Paromomycin |
Humatin |
| Ansamycins |
| Geldanamycin |
|
Experimental, as antitumor antibiotics |
|
|
| Herbimycin |
|
| Carbacephem |
| Loracarbef |
Lorabid |
|
|
prevents bacterial cell division by inhibiting cell wall synthesis. |
| Carbapenems |
| Ertapenem |
Invanz |
Bactericidal for both Gram-positive and Gram-negative organisms and therefore useful for empiric broad-spectrum antibacterial coverage. (Note MRSA resistance to this class.) |
- Gastrointestinal upset and diarrhea
- Nausea
- Seizures
- Headache
- Rash and Allergic reactions
|
Inhibition of cell wall synthesis |
| Doripenem |
Finibax |
| Imipenem/Cilastatin |
Primaxin |
| Meropenem |
Merrem |
| Cephalosporins (First generation) |
| Cefadroxil |
Duricef |
|
- Gastrointestinal upset and diarrhea
- Nausea (if alcohol taken concurrently)
- Allergic reactions
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Cefazolin |
Ancef |
| Cefalotin or Cefalothin |
Keflin |
| Cefalexin |
Keflex |
| Cephalosporins (Second generation) |
| Cefaclor |
Ceclor |
|
- Gastrointestinal upset and diarrhea
- Nausea (if alcohol taken concurrently)
- Allergic reactions
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Cefamandole |
Mandole |
| Cefoxitin |
Mefoxin |
| Cefprozil |
Cefzil |
| Cefuroxime |
Ceftin, Zinnat |
| Cephalosporins (Third generation) |
| Cefixime |
Suprax |
|
- Gastrointestinal upset and diarrhea
- Nausea (if alcohol taken concurrently)
- Allergic reactions
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Cefdinir |
Omnicef, Cefdiel |
| Cefditoren |
Spectracef |
| Cefoperazone |
Cefobid |
| Cefotaxime |
Claforan |
| Cefpodoxime |
|
| Ceftazidime |
Fortaz |
| Ceftibuten |
Cedax |
| Ceftizoxime |
|
| Ceftriaxone |
Rocephin |
| Cephalosporins (Fourth generation) |
| Cefepime |
Maxipime |
|
- Gastrointestinal upset and diarrhea
- Nausea (if alcohol taken concurrently)
- Allergic reactions
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Cephalosporins (Fifth generation) |
| Ceftobiprole |
|
Used to treat MRSA |
- Gastrointestinal upset and diarrhea
- Nausea (if alcohol taken concurrently)
- Allergic reactions
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Glycopeptides |
| Teicoplanin |
|
|
|
inhibiting peptidoglycan synthesis |
| Vancomycin |
Vancocin |
| Macrolides |
| Azithromycin |
Zithromax, Sumamed, Zitrocin |
Streptococcal infections, syphilis, respiratory infections, mycoplasmal infections, Lyme disease |
- Nausea, vomiting, and diarrhea (especially at higher doses)
- Jaundice
|
inhibition of bacterial protein biosynthesis by binding irreversibly to the subunit 50S of the bacterial ribosome, thereby inhibiting translocation of peptidyl tRNA. |
| Clarithromycin |
Biaxin |
| Dirithromycin |
|
| Erythromycin |
Erythocin, Erythroped |
| Roxithromycin |
|
| Troleandomycin |
|
| Telithromycin |
Ketek |
Pneumonia |
Visual Disturbance, Liver Toxicity.3 |
| Spectinomycin |
|
Antimetabolite, Anticancer |
|
| Monobactams |
| Aztreonam |
|
|
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Penicillins |
| Amoxicillin |
Novamox, Amoxil |
Wide range of infections; penicillin used for streptococcal infections, syphilis, and Lyme disease |
- Gastrointestinal upset and diarrhea
- Allergy with serious anaphylactic reactions
- Brain and kidney damage (rare)
|
Same mode of action as other beta-lactam antibiotics: disrupt the synthesis of the peptidoglycan layer of bacterial cell walls. |
| Ampicillin |
|
| Azlocillin |
|
| Carbenicillin |
|
| Cloxacillin |
|
| Dicloxacillin |
|
| Flucloxacillin |
Floxapen |
| Mezlocillin |
|
| Meticillin |
|
| Nafcillin |
|
| Oxacillin |
|
| Penicillin |
|
| Piperacillin |
|
| Ticarcillin |
|
| Polypeptides |
| Bacitracin |
|
Eye, ear or bladder infections; usually applied directly to the eye or inhaled into the lungs; rarely given by injection |
Kidney and nerve damage (when given by injection) |
Inhibits isoprenyl pyrophosphate, a molecule which carries the building blocks of the peptidoglycan bacterial cell wall outside of the inner membrane 4 |
| Colistin |
|
Interact with the bacterial cytoplasmic membrane, changing its permeability. |
| Polymyxin B |
|
| Quinolones |
| Ciprofloxacin |
Cipro, Ciproxin, Ciprobay |
Urinary tract infections, bacterial prostatitis, community-acquired pneumonia, bacterial diarrhea, mycoplasmal infections, gonorrhea |
Nausea (rare), irreversible damage to central nervous system (uncommon), tendinosis (rare) |
inhibit the bacterial DNA gyrase or the topoisomerase IV enzyme, thereby inhibiting DNA replication and transcription. |
| Enoxacin |
|
| Gatifloxacin |
Tequin |
| Levofloxacin |
Levaquin |
| Lomefloxacin |
|
| Moxifloxacin |
Avelox |
| Norfloxacin |
Noroxin |
| Ofloxacin |
Ocuflox |
| Trovafloxacin |
Trovan |
| Sulfonamides |
| Mafenide |
|
Urinary tract infections (except sulfacetamide and mafenide); mafenide is used topically for burns |
|
Folate synthesis inhibition. They are competitive inhibitors of the enzyme dihydropteroate synthetase, DHPS. DHPS catalyses the conversion of PABA (para-aminobenzoate) to dihydropteroate, a key step in folate synthesis. Folate is necessary for the cell to synthesize nucleic acids (nucleic acids are essential building blocks of DNA and RNA), and in its absence cells will be unable to divide. |
| Prontosil (archaic) |
|
| Sulfacetamide |
|
| Sulfamethizole |
|
| Sulfanilimide (archaic) |
|
| Sulfasalazine |
|
| Sulfisoxazole |
|
| Trimethoprim |
|
| Trimethoprim-Sulfamethoxazole (Co-trimoxazole) (TMP-SMX) |
Bactrim |
| Tetracyclines |
| Demeclocycline |
|
Syphilis, chlamydial infections, Lyme disease, mycoplasmal infections, acne rickettsial infections, *malaria *Note: Malaria is caused by a protist and not a bacteria. |
- Potentially Permanent
- Gastrointestinal upset
- Sensitivity to sunlight
- Potential toxicity to mother and fetus during pregnancy
- Enamel hypoplasia (staining of teeth)
- transient depression of bone growth
|
inhibiting the binding of aminoacyl-tRNA to the mRNA-ribosome complex. They do so mainly by binding to the 30S ribosomal subunit in the mRNA translation complex.5 |
| Doxycycline |
Vibramycin |
| Minocycline |
Minocin |
| Oxytetracycline |
Terracin |
| Tetracycline |
Sumycin |
| Others |
| Arsphenamine |
Salvarsan |
Spirochaetal infections (obsolete) |
|
|
| Chloramphenicol |
Chloromycetin |
|
|
|
| Clindamycin |
Cleocin |
acne infections, prophylaxis before surgery |
|
|
| Lincomycin |
|
acne infections, prophylaxis before surgery |
|
|
| Ethambutol |
|
Antituberculosis |
|
|
| Fosfomycin |
|
|
|
|
| Fusidic acid |
Fucidin |
|
|
|
| Furazolidone |
|
|
|
|
| Isoniazid |
|
Antituberculosis |
|
|
| Linezolid |
Zyvox |
|
|
|
| Metronidazole |
Flagyl |
Giardia |
|
|
| Mupirocin |
Bactroban |
|
|
|
| Nitrofurantoin |
Macrodantin, Macrobid |
|
|
|
| Platensimycin |
|
|
|
| Pyrazinamide |
|
Antituberculosis |
|
|
| Quinupristin/Dalfopristin |
Syncercid |
|
|
|
| Rifampicin (Rifampin in US) |
|
mostly Gram-positive and mycobacteria |
Reddish-orange sweat, tears, and urine |
Binds to the β subunit of RNA polymerase to inhibit transcription |
| Tinidazole |
|
|
|
|
| Generic Name |
Brand Names |
Common Uses2 |
Possible Side Effects2 |
Mechanism of action |