<P> Ertapenem is a carbapenem antibiotic marketed by Merck as Invanz . It is structurally very similar to meropenem in that it possesses a 1 - β - methyl group . Other members of the carbapenem group ( imipenem , doripenem , and meropenem ) are broadly active antibacterials that are used for infections caused by difficult to treat or multidrug - resistant bacteria ( such as ESBL expressing Klebsiella pneumonia ) . They have very short serum half - lives and must be administered by intravenous infusion every 6 to 8 hours . Ertapenem differs from other carbapenems in having a somewhat less broad spectrum of activity ( not against Pseudomonas aeruginosa ) , and in that its extended serum half - life allows it to be administered once every 24 hours . </P>
<P> Ertapenem is a carbapenem antibiotic marketed by Merck as Invanz . It is structurally very similar to meropenem in that it possesses a 1 - β - methyl group . Other members of the carbapenem group ( imipenem , doripenem , and meropenem ) are broadly active antibacterials that are used for infections caused by difficult to treat or multidrug - resistant bacteria ( such as ESBL expressing Klebsiella pneumonia ) . They have very short serum half - lives and must be administered by intravenous infusion every 6 to 8 hours . Ertapenem differs from other carbapenems in having a somewhat less broad spectrum of activity ( not against Pseudomonas aeruginosa ) , and in that its extended serum half - life allows it to be administered once every 24 hours . </P>
how long does invanz stay in your system
how long does invanz stay in your system
24 hours
24 hours