Errata - English

In Limit of Unspecified Impurities: Change
Mobile phase and Chromatographic system: Proceed as directed in the Assay.
to:
Mobile phase, Standard stock solution, and Chromatographic system: Proceed as directed in the Assay.

Change
Buffer, Mobile phase, System suitability solution, Standard solution, Sample solution, and Chromatographic system: Proceed as directed in the Assay.
to:
Buffer, Mobile phase, System suitability solution, Standard solution, Sample solution, and Chromatographic system: Proceed as directed in the Assay, and use 40 µL injection volume for the Sensitivity solution.

Change
It responds to the Identification test under Penicillin G Benzathine Oral Suspension.
to:
Mix a portion of it with methanol to obtain a solution containing about 3000 Penicillin G Units per mL. Apply 20 µL of this test solution and 20 µL of a Standard solution of USP Penicillin G Benzathine RS in methanol containing 2.5 mg per mL to a suitable thin-layer chromatographic plate (see Chromatography 〈621〉) coated with a 0.25-mm layer of chromatographic silica gel, and allow the spots to dry. Using an unlined developing chamber, develop the chromatogram in a solvent system consisting of a mixture of methanol, acetonitrile, and ammonium hydroxide (70:30:3) until the solvent front has moved about three-fourths of the length of the plate. Remove the plate from the developing chamber, and allow to air-dry. Spray the plate uniformly with a spray reagent prepared as follows. Dissolve 20 g of tartaric acid and 1.7 g of bismuth subnitrate in 80 mL of water. Add 2.5 mL of this solution, 2.5 mL of potassium iodide solution (4 in 10), and 10 g of tartaric acid to 50 mL of water, and mix. Examine the chromatograms: the principal spot obtained from the test solution corresponds in R_F value to that obtained from the Standard solution.

In Solution A: Change
0.15 N hydrochloric acid in water prepared as follows. Transfer 150 mL of hydrochloric acid to a 500-mL volumetric flask, dilute with water to volume, and mix well.
to:
0.15 N hydrochloric acid in water prepared as follows. Transfer 150 mL of 0.5 N hydrochloric acid to a 500-mL volumetric flask, dilute with water to volume, and mix well.

In Test A: Change
It responds to the Identification test under Penicillin G Benzathine Oral Suspension: the spot obtained from the test solution, corresponding in R_F value to that obtained from the Standard solution, is completely resolved from a second spot, produced by penicillin G procaine.
to:
Mix a portion of it with methanol to obtain a solution containing about 3000 Penicillin G Units per mL. Apply 20 µL of this test solution and 20 µL of a Standard solution of USP Penicillin G Benzathine RS in methanol containing 2.5 mg per mL to a suitable thin-layer chromatographic plate (see Chromatography 〈621〉) coated with a 0.25-mm layer of chromatographic silica gel, and allow the spots to dry. Using an unlined developing chamber, develop the chromatogram in a solvent system consisting of a mixture of methanol, acetonitrile, and ammonium hydroxide (70:30:3) until the solvent front has moved about three-fourths of the length of the plate. Remove the plate from the developing chamber, and allow to air-dry. Spray the plate uniformly with a spray reagent prepared as follows. Dissolve 20 g of tartaric acid and 1.7 g of bismuth subnitrate in 80 mL of water. Add 2.5 mL of this solution, 2.5 mL of potassium iodide solution (4 in 10), and 10 g of tartaric acid to 50 mL of water, and mix. Examine the chromatograms: the principal spot obtained from the test solution corresponds in R_F value to that obtained from the Standard solution. The spot obtained from the test solution, corresponding in R_F value to that obtained from the Standard solution, is completely resolved from a second spot, produced by penicillin G procaine.

In Test 6: Change
Times: 0.5, 1, and 4 h—for strengths 540 and 1080 mg as potassium citrate monohydrate; 0.5, 1, and 6 h—for strength 1620 mg as potassium citrate monohydrate.
to:
Times: 0.5, 1, and 4 h—for strength 540 mg as potassium citrate monohydrate; 0.5, 1, and 6 h—for strengths 1080 and 1620 mg as potassium citrate monohydrate.

Change
Standard solution: 1.0 µg/mL of USP p-Chloroaniline RS in Diluent
to:
Standard solution: 0.001 mg/mL of USP p-Chloroaniline RS in Diluent
AND
In Analysis: Change
Result = (r_U/r_S) × (C_S/C_U) × D × 100
to:
Result = (r_U/r_S) × (C_S/C_U) × 100
AND
Delete
D = dilution factor for the Sample solution, 2.5

In test A: Change
The retention time of the major peak of the Sample solution corresponds to that of the Standard solution, both relative to the internal standard, as obtained in the Assay.
to:
The retention time of the major peak of the Sample solution corresponds to that of the Standard solution, as obtained in the Assay.

In Limit of Naloxone Related Compound D: Delete
Sensitivity solution: 1.25 µg/mL of USP Naloxone Related Compound D RS in 0.1 N hydrochloric acid
AND
In System suitability/Samples: Delete
Sensitivity solution,
AND
In System suitability/Suitability requirements: Delete
Signal-to-noise ratio: NLT 10, Sensitivity solution

In Liquid Chromatography: Isocratic Elution/Injection volume: Change
L₂ = internal diameter of the column used (mm)
dc₁ = particle size indicated in the monograph (µm)
dc₂ = particle size of the column used (µm)
to:
L₂ = new column length (mm)
dc₁ = column internal diameter indicated in the monograph (mm)
dc₂ = new column internal diameter (mm)

In Standardization with visual end point: Change
M = mL edetate disodium × edetate disodium/mL ZnSO₄
to:
M = mL edetate disodium × M edetate disodium/mL ZnSO₄
AND
In Standardization with potentiometric end point: Change
M = mL edetate disodium × edetate disodium/mL ZnSO₄
to:
M = mL edetate disodium × M edetate disodium/mL ZnSO₄

Change
Standard solution: Transfer 2.0 mg/mL of USP Latanoprost RS into a suitable volumetric flask, dissolve in dehydrated alcohol equivalent to 20% of the final volume, and dilute with chromatographic hexane to volume.
Sample solution: Transfer 2.0 mg/mL of Latanoprost into a suitable volumetric flask, dissolve in dehydrated alcohol equivalent to 20% of the final volume, and dilute with chromatographic hexane to volume.
to:
Standard solution: 2.0 mg/mL of USP Latanoprost RS prepared as follows. Transfer USP Latanoprost RS into a suitable volumetric flask, dissolve in dehydrated alcohol equivalent to 20% of the final volume, and dilute with chromatographic hexane to volume.
Sample solution: 2.0 mg/mL of Latanoprost prepared as follows. Transfer Latanoprost into a suitable volumetric flask, dissolve in dehydrated alcohol equivalent to 20% of the final volume, and dilute with chromatographic hexane to volume.

In Liquid Chromatography: Isocratic Elution/Injection volume: Change
Result = (V_inj2 = V_inj1 (L₂ d_c2² )/(L₁ d_c1²)
to:
V_inj2 = V_inj1 (L₂ d_c2² )/(L₁ d_c1²)
AND
In Liquid Chromatography: Gradient Elution/Column parameters and flow rate: Change
F₂ = F₂ × [(dc₂² × dp₁)/(dc₁² × dp₂)]
to:
F₂ = F₁ × [(dc₂² × dp₁)/(dc₁² × dp₂)]

In Light-resistant container: Change
〈661.2〉, Functionality, Spectral Transmission Requirements for Light-Resistant Components and Systems.
to:
〈661.2〉, Functionality Test Method, Spectral Transmission Requirements for Light-Resistant Components and Systems.