Hydrocodone bitartrate is morphinan-6-one, 4,5-epoxy-3-methoxy-17-methyl-, (5α)-, [R-(R*,R*)]-2,3-dihydroxybutanedioate (1:1), hydrate (2:5); also known as 4,5α-Epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5); a fine white crystal or crystalline powder, which is derived from the opium alkaloid, thebaine; and may be represented by the following structural formula:
Molecular weight = 494.5
Chlorpheniramine maleate is 2-pyridinepropanamine, γ-(4-chlorophenyl)-N,N-dimethyl-, (Z)-2-butenedioate (1:1) and has the following chemical structure:
Molecular weight = 390.86
Feb 28, 2013 – Pernix Therapeutics Holdings, Inc., a specialty pharmaceutical company, today announced that its subsidiary, Hawthorn Pharmaceuticals, Inc., has received U.S. Food and Drug Administration (FDA) approval of a new drug application (NDA) for Vituz Oral Solution (hydrocodone bitartrate and chlorpheniramine maleate). Vituz is indicated for the relief of cough and symptoms associated with upper respiratory allergies or a common cold in adults 18 years of age and older.
Cooper Collins, President and CEO of Pernix, said, “Vituz broadens our cough and cold product line and is our first NDA approved by the FDA, since we closed the acquisition of Hawthorn and Cypress at the end of December 2012. We look forward to the launch of this new treatment option for cough and cold symptoms, which is expected prior to the fall of this year.”