Levocetirizine dihydrochloride

Levocetirizine dihydrochloride, the active component of levocetirizine dihydrochloride tablets, is an orally active H-receptor antagonist. The chemical name is (R)-[2-[4-[(4-chlorophenyl) phenylmethyl]-1-piperazinyl] ethoxy] acetic acid dihydrochloride. Levocetirizine dihydrochloride is the R enantiomer of cetirizine hydrochloride, a racemic compound with antihistaminic properties.… Continue Reading


LUNESTA (eszopiclone) is a nonbenzodiazepine hypnotic agent that is a pyrrolopyrazine derivative of the cyclopyrrolone class. The chemical name of eszopiclone is (+)-(5S)-6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b] pyrazin-5-yl 4-methylpiperazine-1-carboxylate. Its molecular weight is 388.81, and its empirical formula is CHClNO. Eszopiclone has a single… Continue Reading

Lidocaine and Prilocaine

Lidocaine and prilocaine cream, 2.5%/2.5% is an emulsion in which the oil phase is a eutectic mixture of lidocaine and prilocaine in a ratio of 1:1 by weight. This eutectic mixture has a melting point below room temperature and therefore… Continue Reading


The active ingredient in Lansoprazole Delayed-Release Capsules is lansoprazole, a substituted benzimidazole, 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl] methyl] sulfinyl] benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is CHFNOS with a molecular weight of 369.37. Lansoprazole has the following structure: Lansoprazole… Continue Reading


LATUDA is a psychotropic agent belonging to the chemical class of benzoisothiazol derivatives. Its chemical name is (3a,4,7,7a)-2-{(1,2)-2-[4-(1,2-benzisothiazol-3-yl)piperazin-1-ylmethyl] cyclohexylmethyl}hexahydro-4,7-methano-2-isoindole-1,3-dione hydrochloride. Its molecular formula is CHNOS·HCl and its molecular weight is 529.14. The chemical structure is: Lurasidone hydrochloride is a white… Continue Reading


Lovastatin is a cholesterol lowering agent isolated from a strain of . After oral ingestion, lovastatin, which is an inactive lactone, is hydrolyzed to the corresponding β-hydroxyacid form. This is a principal metabolite and an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA)… Continue Reading


LEVITRA is an oral therapy for the treatment of erectile dysfunction. This monohydrochloride salt of vardenafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Vardenafil HCl is designated chemically as piperazine, 1-[[3-(1,4-dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-, monohydrochloride and has… Continue Reading

losartan potassium and hydrochlorothiazide

Losartan potassium and hydrochlorothiazide tablets 50/12.5 mg, losartan potassium and hydrochlorothiazide tablets 100/12.5 mg and losartan potassium and hydrochlorothiazide tablets 100/25 mg combine an angiotensin II receptor (type AT) antagonist and a diuretic, hydrochlorothiazide. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[(-1-tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol… Continue Reading


Leflunomide is a pyrimidine synthesis inhibitor. The chemical name for leflunomide is N-(4’-trifluoromethylphenyl)-5-methylisoxazole-4-carboxamide. It has an empirical formula CHFNO, a molecular weight of 270.2 and the following structural formula: Each leflunomide tablet, for oral administration, contains 10 mg or 20… Continue Reading

Leucovorin Calcium

Leucovorin Calcium Tablets USP contain either 5 mg, 10 mg, 15 mg or 25 mg leucovorin as the calcium salt of N-[4-[[(2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl] amino]benzoyl]-L-glutamic acid. This is equivalent to either 5.40 mg, 10.80 mg, 16.21 mg or 27.01 mg of anhydrous… Continue Reading