pentazocine and naloxone - Generic Medications

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