Drugs Similar to PENTAZOCINE AND NALOXONE

Pentazocine and Naloxone Hydrochloride Tablets, USP contain pentazocine hydrochloride, USP, a partial opioid agonist, equivalent to 50 mg base and is a member of the benzazocine series (also known as the benzomorphan series), and naloxone hydrochloride, USP, an opioid antagonist equivalent to 0.5 mg base. Pentazocine and Naloxone Hydrochloride Tablets, USP are an analgesic for oral administration. Chemically, pentazocine hydrochloride is (2R*,6R*,11R*)- 1, 2, 3, 4, 5, 6- Hexahydro-6,11-dimethyl-3-(3-methyl-2-butenyl)-2,6-methano-3-benzazocin-8-ol hydrochloride, a white, crystalline substance soluble in acidic aqueous solutions, and has the following structural formula: Chemically, naloxone hydrochloride is 17-Allyl-4,5a-epoxy-3,14-dihydroxy‑ morphinan-6-one hydrochloride. It is a slightly off-white powder, and is soluble in water and dilute acids, and has the following structural formula: Each tablet, for oral administration, contains pentazocine hydrochloride, USP, equivalent to 50 mg of pentazocine, and naloxone hydrochloride, USP, equivalent to 0.5 mg of naloxone. In addition, each tablet contains the following inactive ingredients: Colloidal Silicon Dioxide, Corn Starch, Dibasic Calcium Phosphate, D&C Yellow #10 Aluminum lake, Magnesium Stearate, Microcrystalline Cellulose, Sodium Lauryl Sulfate. figure 1 figure 2

Pentazocine and Naloxone Tablets, USP contain pentazocine hydrochloride, USP, a partial opioid agonist, equivalent to 50 mg base and is a member of the benzazocine series (also known as the benzomorphan series), and naloxone hydrochloride, USP, an opioid antagonist equivalent to 0.5 mg base. Pentazocine and Naloxone Tablets, USP are an analgesic for oral administration. Chemically, pentazocine hydrochloride, USP is (2 R *,6 R *,11 R *)-1,2,3,4,5,6-Hexahydro-6,11-dimethyl-3-(3-methyl-2-butenyl)-2,6-methano-3-benzazocin-8-ol hydrochloride, a white, crystalline substance soluble in acidic aqueous solutions, and has the following structural formula: Chemically, naloxone hydrochloride, USP is Morphinan-6-one,4,5-epoxy-3,14-dihydroxy-17-(2- propenyl)-, hydrochloride, (5α)-. It is a slightly off-white powder, and is soluble in water and dilute acids, and has the following structural formula: Inactive Ingredients: colloidal silicon dioxide, dibasic calcium phosphate, D&C Yellow No. 10, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate and pregelatinized starch. Pentazocine Structure Naloxone Structure

SUBOXONE® (buprenorphine and naloxone) sublingual film is an orange film, imprinted with a logo identifying the product and strength in white ink. 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 polyethylene oxide, hydroxypropyl methylcellulose, maltitol, acesulfame potassium, lime flavor, citric acid, sodium citrate, FD&C yellow #6, and white ink. 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 HCl has the molecular formula C 29 H 41 NO 4 • HCl and the molecular weight is 504.10. It is a white or off-white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Chemically, naloxone HCl dihydrate is 17-Allyl-4,5 α -epoxy-3, 14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone hydrochloride dihydrate has the molecular formula C 19 H 21 NO 4 • HCl • 2H 2 O and the molecular weight is 399.87. It is a white to slightly off-white powder and is freely soluble in water, soluble in alcohol, and practically insoluble in toluene and ether. Figure Figure

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

Buprenorphine and naloxone sublingual tablets are uncoated, round, white tablet with “↑” on one side and an “N2” or “N8” debossed on the other side. “N2” indicating the 2 mg/0.5 mg strength and the “N8” indicating the 8 mg/2 mg strength. They contain buprenorphine HCl, a partial agonist at the mu-opioid receptor, and naloxone HCl dihydrate, an opioid receptor antagonist, at a ratio of 4:1 (ratio of free bases). It is intended for sublingual administration and is available in two dosage strengths, 2 mg buprenorphine with 0.5 mg naloxone and 8 mg buprenorphine with 2 mg naloxone. Each sublingual tablet also contains lactose monohydrate, mannitol, cornstarch, povidone, purified water, citric acid anhydrous, sodium citrate, sodium stearyl fumarate, acesulfame K sweetener, a lemon flavor and a lime flavor. Chemically, buprenorphine HCl is (2S)-2-[17-Cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14-ethano-14α-morphinan-7α-yl]-3,3­dimethylbutan-2-ol hydrochloride. It has the following chemical structure: Buprenorphine HCl has the molecular formula C 29 H 41 NO 4 • HCl and the molecular weight is 504.10. It is a white or off-white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Chemically, naloxone HCl dihydrate is 17-Allyl-4, 5 α-epoxy-3, 14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone hydrochloride dihydrate has the molecular formula C 19 H 21 NO 4 • HCl • 2H 2 0 and the molecular weight is 399.87. It is a white to slightly off-white powder and is freely soluble in water, soluble in alcohol, and practically insoluble in toluene and ether. Chemical Structure - Buprenorphine Hydrochloride Chemical Structure - Naloxone Hydrochloride Dihydrate

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

KLOXXADO (naloxone hydrochloride) nasal spray contains the active moiety naloxone, an opioid antagonist, in the form of hydrochloride salt. The chemical name of Naloxone hydrochloride dihydrate is 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the molecular weight of 399.87 g/mol. Naloxone hydrochloride dihydrate molecular formula is C 19 H 21 NO 4· HCl · 2H 2 O, and it has the following chemical structure, as shown below. Naloxone hydrochloride occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. KLOXXADO (naloxone hydrochloride) nasal spray is supplied in a pre-filled, single-dose intranasal spray. Each spray or 0.1 mL of KLOXXADO (naloxone hydrochloride) nasal spray contains 8 mg of naloxone hydrochloride (equivalent to 8.79 mg of naloxone hydrochloride dihydrate, USP or 7.2 mg naloxone). Inactive ingredients are dehydrated alcohol (8 mg strength: 20% (w/w)), edetate disodium dihydrate, USP, propylene glycol, USP, and sodium hydroxide, NF and hydrochloric acid, NF as pH adjusters, in purified water, USP. The pH range for KLOXXADO (naloxone hydrochloride) nasal spray is from 4.0 to 5.5. image-chemical-structure-usp.jpg

Naloxone Hydrochloride Injection, USP is a sterile, nonpyrogenic solution of naloxone hydrochloride in water for injection. Each milliliter (mL) contains 0.4 mg naloxone hydrochloride and sodium chloride to adjust tonicity in water for injection. May contain hydrochloric acid for pH adjustment; pH 4.0 (3.0 to 6.5). The single-dose solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended for use only as a single-dose injection. When smaller doses are required, the unused portion should be discarded. The multiple-dose solution contains, in addition, 1.8 mg/mL methylparaben and 0.2 mg/mL propylparaben added as preservatives. Naloxone Hydrochloride Injection, USP may be administered intravenously, intramuscularly, or subcutaneously. Naloxone, an opioid antagonist, is a synthetic congener of oxymorphone. It differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone Hydrochloride, USP is chemically designated 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride (C19H21NO4 • HCl), a white to slightly off-white powder soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and chloroform. It has a molecular weight of 363.84. It has the following structural formula: Structure

Naloxone HCl Nasal Spray is a pre-filled, single dose intranasal spray. Chemically, naloxone hydrochloride is the hydrochloride salt of 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride with the following structure: C19H21NO4●HCl M.W. 363.84 Naloxone hydrochloride, an opioid antagonist, occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Each Naloxone HCl Nasal Spray contains a 4 mg single dose of naloxone hydrochloride (equivalent to 3.6 mg of naloxone) in a 0.1 mL (100 microliter) aqueous solution. Inactive ingredients include benzalkonium chloride (preservative), disodium ethylenediaminetetraacetate (chelating agent), sodium chloride, hydrochloric acid to adjust pH, and purified water. The pH range is 3.5 to 5.5. STRUCTURE

Naloxone Hydrochloride Injection, USP is a sterile, nonpyrogenic solution of naloxone hydrochloride in water for injection. Each milliliter (mL) contains 0.4 mg naloxone hydrochloride and sodium chloride to adjust tonicity in water for injection. May contain hydrochloric acid for pH adjustment; pH 4.0 (3.0 to 6.5). The single-dose solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended for use only as a single-dose injection. When smaller doses are required, the unused portion should be discarded. The multiple-dose solution contains, in addition, 1.8 mg/mL methylparaben and 0.2 mg/mL propylparaben added as preservatives. Naloxone Hydrochloride Injection, USP may be administered intravenously, intramuscularly, or subcutaneously. Naloxone, an opioid antagonist, is a synthetic congener of oxymorphone. It differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone Hydrochloride, USP is chemically designated 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride (C 19 H 21 NO 4 • HCl), a white to slightly off-white powder soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and chloroform. It has a molecular weight of 363.84. It has the following structural formula: structural formula naloxone hydrochloride

Naloxone hydrochloride injection, USP, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. NALOXONE HYDROCHLORIDE Naloxone hydrochloride occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone hydrochloride injection, USP is available as a sterile, clear colorless solution for intravenous, intramuscular and subcutaneous administration in 1 mg/mL concentration. The pH is adjusted to 3.5 ± 0.5 with hydrochloric acid. Each mL also contains 8.35 mg of sodium chloride. Naloxone hydrochloride injection is preservative-free. Structural Formula

Naloxone Hydrochloride Injection, USP is a sterile, nonpyrogenic solution of naloxone hydrochloride in water for injection. Each milliliter (mL) contains 0.4 mg naloxone hydrochloride and sodium chloride to adjust tonicity in water for injection. May contain hydrochloric acid for pH adjustment; pH 4.0 (3.0 to 6.5). The single-dose solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended for use only as a single-dose injection. When smaller doses are required, the unused portion should be discarded. Naloxone Hydrochloride Injection, USP may be administered intravenously, intramuscularly, or subcutaneously. Naloxone, an opioid antagonist, is a synthetic congener of oxymorphone. It differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone Hydrochloride, USP is chemically designated 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride (C 19 H 21 NO 4 • HCl), a white to slightly off-white powder soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and chloroform. It has a molecular weight of 363.84. It has the following structural formula: Molecular Structure

Naloxone HCl Nasal Spray is a pre-filled, single dose intranasal spray. Chemically, naloxone hydrochloride is the hydrochloride salt of 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride with the following structure: C 19 H 21 NO 4 ●HCl M.W. 363.84 Naloxone hydrochloride, an opioid antagonist, occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Each Naloxone HCl Nasal Spray contains a 4 mg single dose of naloxone hydrochloride (equivalent to 3.6 mg of naloxone) in a 0.1 mL (100 microliter) aqueous solution. Inactive ingredients include benzalkonium chloride (preservative), disodium ethylenediaminetetraacetate (chelating agent), sodium chloride, hydrochloric acid to adjust pH, and purified water. The pH range is 3.5 to 5.5.

Naloxone hydrochloride injection, USP an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone hydrochloride, USP occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone hydrochloride injection, USP is available as a sterile, clear, colorless solution for intravenous, intramuscular and subcutaneous administration in concentration: 0.4 mg of naloxone hydrochloride per mL. It has a molecular weight of 363.84. pH is adjusted to 3.0 to 6.5 with hydrochloric acid. The 0.4 mg/mL vial is available in an unpreserved, paraben-free formulation containing 9 mg/mL of sodium chloride. structure

Naloxone, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone hydrochloride, USP is chemically designated 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride (C 19 H 21 NO 4 • HCl), a white to slightly off-white powder soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and chloroform. It has a molecular weight of 363.84. It has the following structural formula: Naloxone hydrochloride injection is a sterile, nonpyrogenic solution of naloxone hydrochloride in water for injection. Each milliliter (mL) contains 0.4 mg naloxone hydrochloride and sodium chloride to adjust tonicity in water for injection. May contain hydrochloric acid for pH adjustment; pH 4 (3 to 6.5). Naloxone hydrochloride injection may be administered intravenously, intramuscularly, or subcutaneously. The single-dose solution contains no bacteriostat, antimicrobial agent or added buffer (except for pH adjustment) and is intended for use only as a single-dose injection. When smaller doses are required, the unused portion should be discarded. Naloxone Hydrochloride Structural Formula

Naloxone hydrochloride, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. It is known chemically as 17-allyl-4,5α-epoxy,3-14-dihydroxymorphinan-6-one hydrochloride. It has a molecular weight of 363.84, and the following structural formula: Naloxone hydrochloride occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone hydrochloride injection is available as a sterile solution for intravenous, intramuscular, and subcutaneous administration. Each mL contains 0.4 mg of naloxone hydrochloride. Each mL contains 8.9 mg of sodium chloride. The pH is adjusted between 3.0 to 6.5 with hydrochloric acid or sodium hydroxide. The air in the cartridges has been displaced by nitrogen gas. Formula1.jpg

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Naloxone hydrochloride injection USP, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone hydrochloride, USP occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone hydrochloride injection, USP is available as a sterile, clear colorless solution for intravenous, intramuscular or subcutaneous administration in the concentration 0.4 mg of naloxone hydrochloride per mL. pH is adjusted to 3.0 to 6.5 with hydrochloric acid. The 0.4 mg/mL vial is available in an unpreserved, paraben-free formulation containing 9 mg/mL of sodium chloride. Chemical Structure

Naloxone Hydrochloride Injection, USP, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. Naloxone hydrochloride occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone Hydrochloride Injection, USP is available as a sterile solution for intravenous, intramuscular and subcutaneous administration in the concentration 0.4 mg of naloxone hydrochloride per mL. pH is adjusted to 3.5 ± 0.5 with hydrochloric acid. The 0.4 mg/mL vial contains 8.6 mg/mL of sodium chloride and 2 mg/mL of methylparaben and propylparaben as preservatives in a ratio of 9:1. chemical structure and formula

Naloxone hydrochloride injection, USP an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. 17-Allyl-4,5 α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride, dihydrate Naloxone hydrochloride, USP occurs as a white to slightly off-white powder, and is freely soluble or soluble in water, soluble in dilute acids, and soluble in strong alkali; soluble or slightly soluble in alcohol; practically insoluble in ether and in chloroform. It has a molecular weight of 399.87 Naloxone hydrochloride injection, USP is available as a sterile, clear colorless solution for intravenous, intramuscular and subcutaneous administration in concentration: 0.4 mg of naloxone hydrochloride per mL. pH is adjusted to 3.0 to 6.5 with hydrochloric acid. The 0.4 mg/mL vial is available in an unpreserved, paraben-free formulation containing 9 mg/mL of sodium chloride. image-01

Naloxone hydrochloride, an opioid antagonist, is a synthetic congener of oxymorphone. In structure it differs from oxymorphone in that the methyl group on the nitrogen atom is replaced by an allyl group. NALOXONE HYDROCHLORIDE (-)-17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride Naloxone hydrochloride occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Naloxone Hydrochloride Injection is available as a sterile solution for intravenous, intramuscular and subcutaneous administration in 1 mg/mL concentration. pH is adjusted to 3.5 ± 0.5 with hydrochloric acid. Each mL also contains 8.35 mg of sodium chloride. Naloxone Hydrochloride Injection is preservative-free. structure

Naloxone HCl Nasal Spray is a pre-filled, single dose intranasal spray. Chemically, naloxone hydrochloride is the hydrochloride salt of 17-Allyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one hydrochloride with the following structure: C 19 H 21 NO 4 ●HCl M.W. 363.84 Naloxone hydrochloride, an opioid antagonist, occurs as a white to slightly off-white powder, and is soluble in water, in dilute acids, and in strong alkali; slightly soluble in alcohol; practically insoluble in ether and in chloroform. Each Naloxone HCl Nasal Spray contains a 4 mg single dose of naloxone hydrochloride (equivalent to 3.6 mg of naloxone) in a 0.1 mL (100 microliter) aqueous solution. Inactive ingredients include benzalkonium chloride (preservative), disodium ethylenediaminetetraacetate (chelating agent), sodium chloride, hydrochloric acid to adjust pH, and purified water. The pH range is 3.5 to 5.5. chemical structure