All of the following drugs are bactericidal except
Tigecycline is a newer drug in the class 'Glycylcyclines.' Its mechanism of action and most propeies are similar to tetracyclines. However, it is resistant to efflux pump (major mechanism of resistance against tetracyclines). Most protein synthesis inhibiting drugs (including tetracyclines and tigecycline) are bacteriostatic except aminoglycosides. Isoniazid, ciprofloxacin and daptomycin are bactericidal.
Isoniazid
Tigecycline
Daptomycin
Ciprofloxacin
Cell Wall Synthesis Inhibitors