Rivaroxaban, a FXa inhibitor, is the active ingredient in XARELTO Tablets with the chemical name 5-Chloro-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophenecarboxamide. The molecular formula of rivaroxaban is CHClNOS and the molecular weight is 435.89. The structural formula is: Rivaroxaban is a pure ()-enantiomer. It is… Continue Reading

Xenon, Xe-133

Xenon Xe 133 Gas is for diagnostic inhalation use only. It is supplied in vials containing either 370 or 740 megabecquerels (10 or 20 millicuries) of Xenon Xe 133 Gas in 2 milliliters of carrier xenon and atmospheric air. Xenon Xe… Continue Reading


Diclofenac sodium topical solution is a clear, colorless to faintly pink-orange solution for topical application. Diclofenac sodium topical solution contains 1.5% w/w diclofenac sodium, a benzeneacetic acid derivative that is a nonsteroidal anti-inflammatory drug (NSAID), designated chemically as 2-[(2,6-dichlorophenyl)amino]-benzeneacetic acid,… Continue Reading


XERESE contains acyclovir, a synthetic nucleoside analogue active against herpes viruses, and hydrocortisone, an anti-inflammatory corticosteroid, combined in a cream for topical administration. Each gram of XERESE contains 5% (w/w) of acyclovir, 1% (w/w) of hydrocortisone and the following inactive… Continue Reading


The active ingredient in Ximino Extended-Release Capsules is minocycline hydrochloride, a semi synthetic derivative of tetracycline. Ximino is a tetracycline-class drug. Ximino is known chemically as [4­(4α,4aα,5aα,12aα)]-4,7-Bis(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,10,12,12a-tetrahydroxy-1,11-dioxo-2-naphthacenecarboxamide mono hydrochloride. The structural formula is represented below: Minocycline hydrochloride, USP is a… Continue Reading

Xopenex HFA

The active component of XOPENEX HFA (levalbuterol tartrate) Inhalation Aerosol is levalbuterol tartrate, the (R)-enantiomer of albuterol. Levalbuterol tartrate is a relatively selective beta-adrenergic receptor agonist (see ). Levalbuterol tartrate has the chemical name (R)-α-[[(1,1-dimethylethyl)amino]methyl]-4-hydroxy-1,3-benzenedimethanol L-tartrate (2:1 salt), and it… Continue Reading


4% Xylocaine-MPF (lidocaine HCl) Sterile Solution (Methylparaben Free) contains a local anesthetic agent and is administered topically or by injection.  See for specific uses. 4% Xylocaine-MPF Sterile Solution contains lidocaine HCl, which is chemically designated as acetamide, 2-(diethylamino)-N-(2,6- dimethylphenyl)-mono-hydrochloride and… Continue Reading


        XIFAXAN tablets contain rifaximin, a non-aminoglycoside semi-synthetic, nonsystemic antibiotic derived from rifamycin SV. Rifaximin is a structural analog of rifampin.  The chemical name for rifaximin is (2,16,18,20,21,22,23,24,25,26,27,28)-5,6,21,23,25-pentahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca-[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-á]-benzimidazole-1,15(2)-dione,25-acetate. The empirical formula is CHNO and its molecular weight is 785.9.  The chemical… Continue Reading


Latanoprost is a prostaglandin F analogue. Its chemical name is isopropyl-(Z)-7[(1R,2R,3R,5S)3,5-dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoate. Its molecular formula is CHO and its chemical structure is: Latanoprost is a colorless to slightly yellow oil that is very soluble in acetonitrile and freely soluble in acetone,… Continue Reading


Hydrocodone bitartrate and acetaminophen is supplied in tablet form for oral administration.