2s 5r 6r 3 3 dimethyl 6 2r 2 3 methylsulfonyl 2 oxoimidazolidin 1 yl carbonyl amino 2 phenylacetyl amino 7 oxo 4 thia 1 azabicyclo 3 2 0 heptane 2 carboxylic acid, 6beta 2r 2 3 methanesulfonyl 2 oxoimidazolidine 1 carboxamido 2 phenylacetamido penicillanic acid, mezlin
Used to treat serious gram–negative infections of the lungs, urinary tract, and skin.