Errata - English

In Organic Impurities/Standard solution: Change
isosorbide related compound A
to:
isosorbide mononitrate related compound A
AND
In System suitability/Suitability requirements/Relative standard deviation: Change
isosorbide related compound A,
to:
isosorbide mononitrate related compound A,
AND
In four instances in Analysis: Change
isosorbide related compound A,
to:
isosorbide mononitrate related compound A,
AND
In Table 1: Change
Isosorbide related compound A
to:
Isosorbide mononitrate related compound A

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 Sample solution: Change
Transfer about 100 mg of chloroprocaine hydrochloride to a 100-mL volumetric flask, dissolve in 40 mL of methanol, and dilute with water to volume.
to:
Transfer a volume of Injection, equivalent to about 100 mg of chloroprocaine hydrochloride to a 100-mL volumetric flask, add 40 mL of methanol, and dilute with water to volume.

In Analysis: Change
Calculate the percentage of any unspecified impurities in the portion of Sotalol Hydrochloride taken:
Result = (r_U/r_S) × (C_S/C_U) × 100
r_U= sum of all the peak responses of all unspecified impurities from the Sample solution
to:
Calculate the percentage of any unspecified impurity in the portion of Sotalol Hydrochloride taken:
Result = (r_U/r_S) × (C_S/C_U) × 100
r_U = peak response of each unspecified impurity from the Sample solution
AND
In Table 1: Change
Any unspecified impurities
to:
Any unspecified impurity

In Dissolution 〈711〉/Test 1/Analysis: Change
Result = (r_U/r_S) × C_S × V × (1/L) × 100
r_U = peak response of linezolid from the Sample solution
r_S = peak response of linezolid from the Standard solution
C_S = concentration of USP Linezolid RS in the Standard solution (mg/mL)
V = volume of Medium, 900 mL
L = label claim (mg/Tablet)
to:
Result = (r_U/r_S) × C_S × V × (1/L) × D × 100
r_U = peak response of linezolid from the Sample solution
r_S = peak response of linezolid from the Standard solution
C_S = concentration of USP Linezolid RS in the Standard solution (mg/mL)
V = volume of Medium, 900 mL
L = label claim (mg/Tablet)
D = dilution factor of the Sample solution, as needed

In USP Doxycycline Related Compound A RS: Change
444.43
to:
444.44
AND
Change
(4S,4aR,5S,5aR,6S,12aS)-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide, monohydrochloride.
C₂₂H₂₄N₂O₈ · HCl 480.13
to:
(4S,4aR,5S,5aR,6S,12aS)-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide hydrochloride.
C₂₂H₂₄N₂O₈ · HCl 480.90

Change
A. The UV-Vis spectrum of the major peak of the Sample solution corresponds to that of the Standard solution, as obtained in the Assay.
to:
A. The UV spectrum of the major peak of the Sample solution corresponds to that of the Standard solution, as obtained in the Assay.

In Alcohol-Insoluble Matter/Sample solution: Change
100 mg/mL of Urea dissolved in warm alcohol
to:
Dissolve 5.0 g of Urea in 50 mL of warm alcohol.
AND
In Alcohol-Insoluble Matter/Analysis: Change
If any insoluble residue remains, pass the Sample solution through a tared filter, wash the residue and the filter with 20 mL of warm alcohol per 50 mL of Sample solution, and dry at 105° for 1 h.
to:
If any insoluble residue remains, pass the Sample solution through a tared filter, wash the residue and the filter with 20 mL of warm alcohol, and dry at 105° for 1 h.

In Analysis: Change
C_S = concentration of USP Calcium DL-5-Methyltetrahydrofolate RS in the Standard solution (mg/mL)
to:
C_S = concentration of USP Calcium D,L-5-Methyltetrahydrofolate RS in the Standard solution (mg/mL)

Change
541.68
Milbemycin B, 5-O-demethyl-28-deoxy-25-methyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6′,6,8,19-pentamethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
to:
541.69
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-5-(hydroxyamino)-25-methyl-, (6R,25R)-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-2a1′-Hydroxy-20′-(hydroxyimino)-5,6,6′,8′,19′-pentamethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.
AND
Change
555.70
Milbemycin B, 5-O-demethyl-28-deoxy-25-ethyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-6′-ethyl-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6,8,19-tetramethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
to:
555.71
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-25-ethyl-5-(hydroxyamino)-, [6R,25R]-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-6-Ethyl-2a1′-hydroxy-20′-(hydroxyimino)-5,6′,8′,19′-tetramethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.

Change
The solution obtained responds to the Identification test under Amoxicillin Capsules.
to:
Prepare a Standard solution of USP Amoxicillin RS in 0.1 N hydrochloric acid containing 4 mg per mL. Use within 10 minutes after preparation. Apply separately 5 µL of each solution on a thin-layer chromatographic plate coated with a 0.25-mm layer of chromatographic silica gel mixture (see Chromatography <621>). Place the plate in a suitable chromatographic chamber, and develop the chromatogram in a solvent system consisting of a mixture of methanol, chloroform, water, and pyridine (90:80:30:10). When the solvent front has moved about three-fourths of the length of the plate, remove the plate from the chamber, and dry with warm air for 10 minutes. Locate the spots on the plate by spraying lightly with a solution of ninhydrin in alcohol containing 3 mg per mL, and dry at 110° for 15 minutes: the R_F value of the principal spot obtained from the test solution corresponds to that obtained from the Standard solution.

In Table 2, footnote b: Change
(4S,4aR,5S,5aR,6R,12aS)-2-Acetyl-4-(dimethylamino)-4a,5a,6,12a-tetrahydro-3,5,10,12,12a-pentahydroxy-6-methyl-tetracene-1,11-dioxo-2-naphthacenecarboxamide.
to:
(4S,4aR,5S,5aR,6R,12aS)-2-Acetyl-4-(dimethylamino)-3,5,10,12,12a-pentahydroxy-6-methyl-4a,5a,6,12a-tetrahydrotetracene-1,11(4H,5H)-dione.

In Organic Impurities/Solution B: Change
Acetonitrile, methanol, and Buffer (55:5:40). Adjust with potassium hydroxide TS to a pH of 6.0.
to:
Acetonitrile, methanol, and Buffer (55:5:40). Adjust with potassium hydroxide solution to a pH of 6.0.
AND
In both equations in Organic Impurities/Analysis: Change
449.40
to:
449.39

Change
Proceed as directed in Identification test A under Metaproterenol Sulfate Inhalation Solution, beginning with “Allow the spots to dry”:
to:
Allow the spots to dry, and develop the chromatogram in a solvent system consisting of the upper layer of a freshly prepared mixture of butyl alcohol, water, and formic acid (50:25:7) until the solvent front has moved about three-fourths of the length of the plate. Remove the plate from the developing chamber, mark the solvent front, and allow the solvent to evaporate. Locate the spots on the plate by examination under short-wavelength UV light:

In Limit of Methanol (Methyl Alcohol) and Methyl Acetate/Analysis: Change
C_U = concentration of methanol (methyl alcohol) or methyl acetate in the Sample solution (mg/mL)
to:
C_U = concentration of Polyvinyl Alcohol in the Sample solution (mg/mL)

Change
A: The contents of the Capsules respond to Identification tests A and B under Theophylline Tablets.
B: The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.
to:
A: Triturate a quantity of the contents of Capsules, equivalent to about 500 mg of theophylline, with 10-mL and 5-mL portions of solvent hexane, and discard the solvent hexane. Triturate the residue with two 10-mL portions of a mixture of equal volumes of 6 N ammonium hydroxide and water, and filter each time. Evaporate the combined filtrates to about 5 mL, neutralize, if necessary, with 6 N acetic acid, using litmus, and then cool to about 15°, with stirring. Collect the precipitate on a filter, wash it with cold water, and dry at 105° for 2 hours: the theophylline so obtained melts between 270° and 274° (see Melting Range or Temperature 〈741〉, Procedures, Procedure for Class I). Retain the remaining portion of the theophylline for use in Identification test B.
B: The IR absorption spectrum of a potassium bromide dispersion of the residue obtained in Identification test A exhibits maxima only at the same wavenumbers as that of a potassium bromide dispersion of USP Theophylline RS.
C: The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.

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.

In Sample solution: Change
Transfer 1.0 g of the Nasal Spray to a 50-mL volumetric flask. Add about 40 mL of Diluent, and sonicate for 10 min until the supernatant is clear. Use the clear supernatant for analysis.
to:
Transfer 1.0 g of the Nasal Spray to a 50-mL volumetric flask. Add about 40 mL of Diluent, and sonicate for 10 min. Dilute with Diluent to volume, and shake. Allow to stand for 10 min until the supernatant is clear. Use the clear supernatant for analysis.

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)]

Change
Prepare Lidocaine, Racepinephrine, and Tetracaine Hydrochlorides Compounded Topical Gel containing 40 mg/mL of lidocaine hydrochloride, 1 mg/mL of racepinephrine hydrochloride, and 10 mg/mL of tetracaine hydrochloride as follows (see Pharmaceutical Compounding—Sterile Preparations <797>).
to:
Prepare Lidocaine, Racepinephrine, and Tetracaine Hydrochlorides Compounded Topical Gel containing 40 mg/mL of lidocaine hydrochloride, 1 mg/mL of racepinephrine hydrochloride, and 10 mg/mL of tetracaine hydrochloride as follows (see Pharmaceutical Compounding—Nonsterile Preparations <795>).

In USP Melengestrol Acetate Related Compound A RS: Change
16-Methylene-17α-hydroxy-4-pregnene-3,20-dione 17-acetate.
to:
16-Methylene-3,20-dioxopregn-4-en-17-yl acetate.
AND
In USP Melengestrol Acetate Related Compound B RS: Change
17α-Hydroxy-6,16-dimethyleneprogna-4-ene-3,20-dione 17-acetate.
to:
6,16-Dimethylene-3,20-dioxopregn-4-en-17-yl acetate.

In Organic Impurities/Table 2: Change
3'-N-Demethyl-3'-N-[(4-methylphenyl)sulfonyl]azithromycin^m
to:
3′-N-{[4-(Acetylamino)phenyl]sulfonyl}-3′-demethylazithromycin^m
AND
In Table 2/footnote m: Change
(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3-[N-(4-methylphenylsulfonyl)-N-methylamino]-3,4,6-trideoxy-ß-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one.
to:
(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3-[N-(4-acetamidophenylsulfonyl)-N-methylamino]-3,4,6-trideoxy-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one.

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 Analysis: Change
Add to the acid solution 5.0 mL of Standard dithizone solution and 4 mL of Ammonia cyanide solution,
to:
Add to the acid solution 5.0 mL of Standard dithizone solution and 4 mL of Ammonium cyanide solution,

In USP Reference Standards 〈11〉/USP Cefdinir Related Compound A RS: Change
413.43
to:
413.42
AND
In USP Reference Standards 〈11〉/USP Cefdinir Related Compound B RS: Change
C₁₄H₁₃N₄O₄S₂ 365.41
to:
C₁₄H₁₄N₄O₄S₂ 366.41