aveva drug delivery systems inc. - Medication Listings

Buprenorphine transdermal system is a transdermal system providing systemic delivery of buprenorphine, a mu opioid partial agonist analgesic, continuously for 7 days. The chemical name of buprenorphine is (5R,6R,7R,9R,13S,14S)-17-Cyclopropylmethyl-7-[(S)-3,3-dimethyl-2-hydroxybutan-2-yl]-6-methoxy-4,5-epoxy-6,14-ethanomorphinan-3-ol. The structural formula is: The molecular weight of buprenorphine is 467.64; the empirical formula is C 29 H 41 NO 4 . Buprenorphine occurs as a white or almost white crystalline powder and is very slightly soluble in water, freely soluble in acetone, soluble in methanol, and slightly soluble in cyclohexane. It dissolves in dilute solutions of acids. The pKa is 8.35 and the melting point is about 217°C. System Components and Structure Five different strengths of buprenorphine transdermal system are available: 5, 7.5, 10, 15, and 20 mcg/hour (Table 6). The proportion of buprenorphine mixed in the adhesive matrix is the same in each of the five strengths. The amount of buprenorphine released from each system per hour is proportional to the active surface area of the system. The skin is the limiting barrier to diffusion from the system into the bloodstream. Table 6: Buprenorphine Transdermal System Product Specifications Buprenorphine Delivery Rate (mcg/hour) Active Surface Area (cm 2 ) Total Buprenorphine Content (mg) Buprenorphine transdermal system 5 6.25 4.75 Buprenorphine transdermal system 7.5 9.375 7.125 Buprenorphine transdermal system 10 12.5 9.5 Buprenorphine transdermal system 15 18.75 14.25 Buprenorphine transdermal system 20 25 19.00 Buprenorphine transdermal system is a rectangular or square, tan-colored system consisting of a protective liner and functional layers. Proceeding from the outer surface toward the surface adhering to the skin, the layers are (1) a beige-colored web backing layer; (2) an adhesive rim without buprenorphine; (3) a separating layer over the buprenorphine-containing adhesive matrix; (4) the buprenorphine-containing adhesive matrix; and (5) a peel-off release liner. Before use, the release liner covering the adhesive layer is removed and discarded. Figure 1: Cross-Section Diagram of Buprenorphine Transdermal System (not to scale). The active ingredient in buprenorphine transdermal system is buprenorphine. The inactive ingredients in each system are: levulinic acid, oleyl oleate, povidone, and polyacrylate cross-linked with aluminum. structure fig1

Buprenorphine and naloxone sublingual film, 2 mg/0.5 mg, 4 mg/1 mg, 8 mg/2 mg and 12 mg/3 mg are rectangular orange film, which contains whitish particulates dispersed throughout the film and areas of lighter color, when observed against the aluminized side of the pouchstock material. The film is imprinted with “2”, “4”, “8” or “12” in blue ink as a strength identifier 2”, “4”, “8” or “12” may appear to be green in color). It contains buprenorphine HCl, a mu-opioid receptor partial agonist, and a kappa‐opioid receptor antagonist, and naloxone HCl dihydrate, an opioid antagonist, at a ratio of 4:1 (ratio of free bases). It is intended for sublingual or buccal administration and is available in four dosage strengths, 2 mg buprenorphine with 0.5 mg naloxone, 4 mg buprenorphine with 1 mg naloxone, 8 mg buprenorphine with 2 mg naloxone and 12 mg buprenorphine with 3 mg naloxone. Each film also contains acesulfame potassium, butylated hydroxyanisole, citric acid, FD&C yellow #6, lemon-lime flavor, maltitol, polyethylene oxide, povidone, sodium citrate and sodium metabisulfite. In addition, imprinting ink also contains ammonium hydroxide, FD&C Blue #1 and shellac. Chemically, buprenorphine HCl is (2S)-2-[17-Cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14- ethano-14α-morphinan-7α-yl]-3,3-dimethylbutan-2-ol hydrochloride. It has the following chemical structure: Buprenorphine hydrochloride, USP has the molecular formula C 29 H 41 NO 4 •HCl and the molecular weight is 504.10 g/mol. It is a white or almost white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in ethanol (96 percent), and practically insoluble in cyclohexane. Chemically, naloxone hydrochloride, USP dihydrate is 17-Allyl-4,5 α -epoxy-3, 14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone hydrochloride, USP dihydrate has the molecular formula C 19 H 21 NO 4 HCl•2H 2 O and the molecular weight is 399.87 g/mol. It is a white to off-white powder and is soluble in water, in dilute acids, and in strong alkali, soluble in alcohol, and practically insoluble in ether and chloroform. structurebuprenorpine.jpg structurenaloxone.jpg

Fentanyl transdermal system contains fentanyl, an opioid agonist, for transdermal administration. The amount of fentanyl released from each system per hour is proportional to the surface area (25 mcg/hour per 10.5 cm 2 ). The composition per unit area of all transdermal system sizes is identical. Strength Nominal delivery rate per hour (mcg/hour) Size (cm 2 ) Fentanyl Content (mg) 12 Nominal delivery rate is 12.5 mcg/hour 5.35 1.38 25 10.7 2.76 37.5 16.05 4.14 50 21.4 5.52 62.5 26.75 6.90 75 32.1 8.28 87.5 37.45 9.66 100 42.8 11.04 The molecular weight of fentanyl base is 336.5 g/mol, and the empirical formula is C 22 H 28 N 2 O. The n-octanol: water partition coefficient is 860:1. The pKa is 8.4. The chemical name is N-phenyl-N-(1-(2-phenylethyl)-4-piperidinyl) propanamide. The structural formula is: Fentanyl transdermal system is a rectangular transparent unit comprising a release liner and two functional layers. Proceeding from the outer surface toward the surface adhering to skin, these layers are: 1) a backing layer of polyethylene terephalate film; 2) a drug-in-adhesive layer. Before use, a release liner covering the drug-in-adhesive layer is removed and discarded. Structure Patch

Use reduces withdrawal symptoms, including nicotine craving, associated with quitting smoking.

Use reduces withdrawal symptoms, including nicotine craving, associated with quitting smoking.