Cefpodoxime proxetil is an orally administered, extended spectrum, semi-synthetic antibiotic of the cephalosporin class. The chemical name is (RS)- l(isopropoxycarbonyloxy) ethyl (+)-(6R,7R)-7-[2-(2-amino-4- thiazolyl)-2- {(Z)methoxyimino} acetamido]-3- methoxymethyl-8-oxo-5-thia-l-azabicyclo [4.2.0]oct-2-ene-2-carboxylate. Its empirical formula is C₂₁H₂₇N₅O₉S₂ and its structural formula is represented below:

The molecular weight of cefpodoxime proxetil is 557,6.

Cefpodoxime proxetil is a prodrug; its active metabolite is cefpodoxime. All doses of cefpodoxime proxetil in this insert are expressed in terms of the active cefpodoxime moiety. The drug is supplied both as film-coated tablets and as flavored granules for oral suspension.

VANTIN Tablets contain cefpodoxime proxetil equivalent to 100 mg or 200 mg of cefpodoxime activity and the following inactive ingredients: carboxymethylcellulose calcium, carnauba wax,TD&C Yellow No. 6, hydroxypropylcellulose, hypromellose, lactose hydrous, magnesium stearate, propylene glycol, sodium lauryl sulfate and titanium dioxide. In addition, the 100 mg film-coated tablets contain D&C Yellow No. 10 and the 200 mg film-coated tablets contain FD&C Red No. 40.

Each 5 mL of VANTIN Oral Suspension contains cefpodoxime proxetil equivalent to 50 mg or 100 mg of cefpodoxime activity after constitution and the following inactive ingredients: artificial flavorings, butylated hydroxy anisole (BHA), carboxymethylcellulose sodium, microcrystalline cellulose, carrageenan, citric acid, colloidal silicon dioxide, croscarmellose sodium, hydroxypropylcellulose, lactose, maltodextrin, natural flavorings, propylene glycol alginate, sodium citrate, sodium benzoate, starch, sucrose, and vegetable oil.

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