Source: FDA, National Drug Code (US) Revision Year: 2020
Naropin Injection contains ropivacaine HCl which is a member of the amino amide class of local anesthetics. Naropin Injection is a sterile, isotonic solution that contains the enantiomerically pure drug substance, sodium chloride for isotonicity and water for injection. Sodium hydroxide and/or hydrochloric acid may be used for pH adjustment. It is administered parenterally.
Ropivacaine HCl is chemically described as S-(-)-1-propyl-2',6'-pipecoloxylidide hydrochloride monohydrate. The drug substance is a white crystalline powder, with the following structural formula:
At 25°C ropivacaine HCl has a solubility of 53.8 mg/mL in water, a distribution ratio between n-octanol and phosphate buffer at pH 7.4 of 14:1 and a pKa of 8.07 in 0.1 M KCl solution. The pKa of ropivacaine is approximately the same as bupivacaine (8.1) and is similar to that of mepivacaine (7.7). However, ropivacaine has an intermediate degree of lipid solubility compared to bupivacaine and mepivacaine.
Naropin Injection is preservative-free and is available in single dose containers in 2 (0.2%), 5 (0.5%), 7.5 (0.75%) and 10 mg/mL (1%) concentrations. The specific gravity of Naropin Injection solutions range from 1.002 to 1.005 at 25°C.
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Naropin (ropivacaine HCl Injection, USP) is supplied as follows:
The solubility of ropivacaine is limited at pH above 6. Thus, care must be taken as precipitation may occur if Naropin is mixed with alkaline solutions. Disinfecting agents containing heavy metals, which cause release of respective ions (mercury, zinc, copper, etc.) should not be used for skin or mucous membrane disinfection since they have been related to incidents of swelling and edema. When chemical disinfection of the container surface is desired, either isopropyl alcohol (91%) or ethyl alcohol (70%) is recommended. It is recommended that chemical disinfection be accomplished by wiping the ampule or vial stopper thoroughly with cotton or gauze that has been moistened with the recommended alcohol just prior to use. When a container is required to have a sterile outside, a Sterile-Pak should be chosen. Glass containers may, as an alternative, be autoclaved once. Stability has been demonstrated using a targeted F 0 of 7 minutes at 121°C. Solutions should be stored at 20º to 25°C (68º to 77°F) [see USP Controlled Room Temperature]. The container closure is not made with natural rubber latex. These products are intended for single dose and are free from preservatives. Any solution remaining from an opened container should be discarded promptly. In addition, continuous infusion bottles should not be left in place for more than 24 hours. NAROPIN is a trademark of Fresenius Kabi USA, LLC. Novaplus is a registered trademark of Vizient, Inc. Manufactured for: Fresenius Kabi, Lake Zurich, IL 60047 |
| Drug | Countries | |
|---|---|---|
| NAROPIN | Austria, Brazil, Canada, Hong Kong, Ireland, New Zealand, Singapore, United Kingdom, United States, South Africa |
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