Sultamicillin is available as a white, capsular-shaped, film-coated tablets containing the tosylate salt equivalent to 375 mg sultamicillin, which is a mutual prodrug of sulbactam and ampicillin, yielding the equivalent of 147 mg sulbactam and 220 mg ampicillin.
Sultamicillin is a double ester in which ampicillin and the beta-lactamase inhibitor sulbactam are linked via a methylene group. Chemically, sultamicillin is the oxymethylpenicillinate sulfone ester of ampicillin and has a molecular weight of 594.7.
Excipients/Inactive Ingredients: Each tablet also contains lactose, corn starch, sodium starch glycolate, hydroxypropylcellulose, magnesium stearate, hydroxypropylmethylcellulose 2910, titanium oxide, talc, macrogol 6000, purified water, carnauba wax, and specially denatured alcohol.