SENSORCAINE-MPF / SENSORCAINE-MPF WITH EPINEPHRINE injections contains bupivacaine hydrochloride, a local anesthetic agent with and without epinephrine (as bitartrate) 1:200,000. The route of administration for SENSORCAINE-MPF / SENSORCAINE-MPF WITH EPINEPHRINE is parenterally by injection, for infiltration, perineural, caudal, epidural, or retrobulbar use. SENSORCAINE-MPF / SENSORCAINE-MPF WITH EPINEPHRINE injections are Methyl Paraben Free (MPF). 

SENSORCAINE/SENSORCAINE WITH EPINEPHRINE injections contains bupivacaine hydrochloride, a local anesthetic agent with and without epinephrine (as bitartrate) 1:200,000. The route of administration for SENSORCAINE / SENSORCAINE WITH EPINEPHRINE is parenterally by injection, for infiltration and perineural use. 

Bupivacaine hydrochloride is a white or almost white, crystalline powder or colorless crystals, soluble in water, freely soluble in alcohol. Bupivacaine is related chemically and pharmacologically to the aminoacyl local anesthetics. It is a homologue of mepivacaine and is chemically related to lidocaine. All three of these anesthetics contain an amide linkage between the aromatic nucleus and the amino, or piperidine group. They differ in this respect from the procaine-type local anesthetics, which have an ester linkage. Bupivacaine hydrochloride chemical name is 2-piperidinecarboxamide, 1-butyl-N-(2,6-dimethylphenyl)-, monohydrochloride, monohydrate. The molecular formula is C18H28N2O·HCl·H2O, with a molecular weight of 342.9 g/mol. Bupivacaine hydrochloride monohydrate has the following chemical structure: 

The pKa of bupivacaine (8.1) is similar to that of lidocaine (7.86). However, bupivacaine possesses a greater degree of lipid solubility and is protein bound to a greater extent than lidocaine. 

Epinephrine bitartrate is a white to greyish white or light brownish-grey, odorless, crystalline powder, freely soluble in water, slightly soluble in 96% ethanol and methanol, practically insoluble in chloroform, methylene chloride and ether. Epinephrine bitartrate chemical name is (-)-3,4-Dihydroxy- α [(methylamino)methyl] benzyl alcohol (+) tartrate (1:1) salt. The molecular formula is C9H13NO3·C4H6O6, with a molecular weight of 333.29 g/mol. Epinephrine bitartrate has the following chemical structure: 

SENSORCAINE-MPF in single dose vials is a sterile, isotonic, clear, colorless, and preservative-free solution. Each mL contains 2.64 mg, 5.27 mg, or 7.92 mg of bupivacaine hydrochloride monohydrate (equivalent to 2.22 mg, 4.44 mg or 6.66 mg of bupivacaine, and also equivalent to 2.5 mg, 5.0 mg, or 7.5 mg of bupivacaine hydrochloride anhydrous; respectively), 8.0 mg sodium chloride for isotonicity, and sodium hydroxide and/or hydrochloric acid as pH adjusters. The pH of these solutions is adjusted to between 4.0 and 6.5. 

SENSORCAINE-MPF WITH EPINEPHRINE 1:200,000 (as bitartrate) in single dose vials is a sterile, isotonic, clear, colorless to slightly yellow and preservative-free solution. Each mL contains 2.64 mg, 5.27 mg, or 7.92 mg of bupivacaine hydrochloride monohydrate (equivalent to 2.22 mg, 4.44 mg or 6.66 mg of bupivacaine, and also equivalent to 2.5 mg, 5.0 mg or 7.5 mg bupivacaine hydrochloride anhydrous; respectively), 0.0091 mg or 9.09 mcg of epinephrine bitartrate (equivalent to 0.005 mg of epinephrine base), 0.5 mg sodium metabisulfite as an antioxidant, 0.2 mg citric acid (anhydrous) as a stabilizer, 8.0 mg sodium chloride for isotonicity, and sodium hydroxide and/or hydrochloric acid as pH adjusters. The pH of these solutions is adjusted to between 3.3 to 5.5. 

SENSORCAINE in multiple dose vials is a sterile, isotonic, clear, colorless solution. Each mL contains 2.64 mg, or 5.27 mg, of bupivacaine hydrochloride monohydrate (equivalent to 2.22 mg, or 4.44 mg of bupivacaine, and also equivalent to 2.5 mg and 5.0 mg of bupivacaine hydrochloride anhydrous; respectively), 8.0 g sodium chloride for isotonicity, 1 mg of methyl paraben as an antiseptic preservative and sodium hydroxide and/or hydrochloric acid as pH adjusters. The pH of these solutions is adjusted to between 4.0 and 6.5. 

SENSORCAINE WITH EPINEPHRINE 1:200,000 (as bitartrate) in multiple dose vials is a sterile, isotonic, clear, colorless to slightly yellow solution. Each mL contains 2.64 mg, or 5.27 mg, of bupivacaine hydrochloride monohydrate (equivalent to 2.22 mg, or 4.44 mg of bupivacaine, and also equivalent to 2.5 mg and 5.0 mg of bupivacaine hydrochloride anhydrous; respectively), 8.0 mg sodium chloride for isotonicity, 0.0091 mg or 9.09 mcg of epinephrine bitartrate (equivalent to 0.005 mg of epinephrine base), 1 mg methylparaben as an antiseptic preservative, 0.5 mg sodium metabisulfite as an antioxidant, 0.2 mg citric acid (anhydrous) as a stabilizer, and sodium hydroxide and/or hydrochloric acid as pH adjusters. The pH of these solutions is adjusted to between 3.3 to 5.5.