Tramadol Hydrochloride Extended-Release Tablets. Expert Committee Chemical Medicines Monographs 2 Reason for Revision Compliance

Similar documents
Telmisartan and Hydrochlorothiazide Tablets. Type of Posting. Revision Bulletin Posting Date. 26 Jan 2018 Official Date

Diltiazem Hydrochloride Extended-Release Capsules. Type of Posting Posting Date Official Date

contents of the monograph in effect today. Please refer to the current edition of the USP NF for official text.

Quetiapine Tablets. Expert Committee Monographs Chemical Medicines 4 Reason for Revision Compliance

contents of the currently official monograph. Please refer to the current edition of the USP NF for official text.

This revision also necessitates a change in the table numbering in the test for Organic Impurities.

The Nitrofurantoin Capsules Revision Bulletin supersedes the currently official monograph.

Should you have any questions, please contact Heather Joyce, Ph.D., Senior Scientific Liaison ( or

Should you have any questions, please contact Heather Joyce, Ph.D., Senior Scientific Liaison ( or

Revision Bulletin 28 Jul Aug 2017 Chemical Medicines Monographs 3

Compliance. Minor editorial changes have been made to update the monograph to the current USP style.

Revision Bulletin 23 Feb Mar 2018 Chemical Medicines Monographs 3 Compliance

Should you have any questions, please contact Gerald Hsu, Ph.D., Senior Scientific Liaison ( or

Compliance. Should you have any questions, please contact Behnaz Almasi, Associate Scientific Liaison ( or

Minor editorial changes have been made to update the monograph to the current USP style.

The Tacrolimus Capsules Revision Bulletin supersedes the currently official monograph.

contents of the currently official monograph. Please refer to the current edition of the USP NF for official text.

ASSAY AND IMPURITY METHOD FOR DURACOR TABLETS BY HPLC

Pharmacopeial Forum 818 INTERIM REVISION ANNOUNCEMENT Vol. 35(4) [July Aug. 2009] ERRATA

ARTESUNATE TABLETS: Final text for revision of The International Pharmacopoeia (December 2009) ARTESUNATI COMPRESSI ARTESUNATE TABLETS

TENOFOVIR TABLETS: Final text for addition to The International Pharmacopoeia (June 2010)

RITONAVIRI COMPRESSI RITONAVIR TABLETS. Final text for addition to The International Pharmacopoeia (July 2012)

CHAPTER INTRODUCTION OF DOSAGE FORM AND LITERATURE REVIEW

Rebaudioside a From Multiple Gene Donors Expressed in Yarrowia Lipolytica

INTERNATIONAL PHARMACOPOEIA MONOGRAPH ON LAMIVUDINE TABLETS

LEVONORGESTREL AND ETHINYLESTRADIOL TABLETS. (January 2012) DRAFT FOR COMMENT

DRAFT PROPOSAL FOR THE INTERNATIONAL PHARMACOPOEIA: CARBAMAZEPINI COMPRESSI - CARBAMAZEPINE TABLETS

Development and Validation for Simultaneous Estimation of Sitagliptin and Metformin in Pharmaceutical Dosage Form using RP-HPLC Method

INTERIM REVISION ANNOUNCEMENT

Should you have any questions, please contact Ravi Ravichandran, Principal Scientific Liaison ( or

CYCLOSERINI CAPSULAE - CYCLOSERINE CAPSULES (AUGUST 2015)

Aripiprazole (USP) We have followed the current Aripiprazole USP monograph (USP38-NF33):

SULFAMETHOXAZOLE AND TRIMETHOPRIM TABLETS Draft proposal for The International Pharmacopoeia (September 2010)

Title Revision n date

Development and validation of stability indicating RP-LC method for estimation of calcium dobesilate in pharmaceutical formulations

CHAPTER 2 SIMULTANEOUS DETRMINATION OF ANASTROZOLE AND TEMOZOLOMIDE TEMOZOLOMIDE CAPSULES 20 MG AND ANASTROZOLE TABLETS 1 MG

IJPAR Vol.3 Issue 4 Oct-Dec-2014 Journal Home page:

RP-HPLC Method Development and Validation of Abacavir Sulphate in Bulk and Tablet Dosage Form

ARTENIMOLUM ARTENIMOL. Adopted revised text for addition to The International Pharmacopoeia

ZIDOVUDINE, LAMIVUDINE AND ABACAVIR TABLETS Draft proposal for The International Pharmacopoeia (September 2006)

METHOD DEVELOPMENT AND VALIDATION BY RP-HPLC FOR ESTIMATION OF ZOLPIDEM TARTARATE

Simultaneous estimation of Metformin HCl and Sitagliptin in drug substance and drug products by RP-HPLC method

[NOTE The relative retention times for calcitonin salmon and calcitonin salmon related compound A Change to read:

USP purity analysis of pravastatin sodium using the Agilent 1120 Compact LC

Pelagia Research Library

CHAPTER INTRODUCTION OF DOSAGE FORM AND LITERATURE REVIEW

Journal of Chemical and Pharmaceutical Research

Journal of Chemical and Pharmaceutical Research, 2018, 10(3): Research Article

USP Method Transfer of Ziprasidone HCl from HPLC to UPLC

HPLC to UHPLC Transfer of USP Method for Amlodipine Besylate Using the Agilent 1290 Infinity II LC

EMTRICITABINE AND TENOFOVIR TABLETS

DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR QUANTITATIVE ANALYSIS OF TRAMADOL IN PURE AND PHARMACEUTICAL FORMULATIONS

PROPOSAL FOR REVISION OF MONOGRAPH PUBLISHED IN The International Pharmacopoeia: REVISION OF ph test ABACAVIR ORAL SOLUTION (JULY 2012)

Residue Monograph prepared by the meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA), 82 nd meeting 2016.

Validation of Changes to the USP Assay Method for Ibuprofen Tablets

Analysis of Amino Acids Derived Online Using an Agilent AdvanceBio AAA Column

Hyderabad, India. Department of Pharmaceutical Chemistry, Glocal University, Saharanpur, India.

DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD ESTIMATION OF TOLVAPTAN IN BULK PHARMACEUTICAL FORMULATION

DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR ESTIMATION OF LACOSAMIDE IN BULK AND ITS PHARMACEUTICAL FORMULATION

Journal of Chemical and Pharmaceutical Research, 2014, 6(7): Research Article

Airo International Research Journal ISSN : Volume : 7 October 2015

Tenofovir disoproxil fumarate (Tenofoviri disoproxili fumaras)

Pelagia Research Library

J Pharm Sci Bioscientific Res (4): ISSN NO

DRAFT MONOGRAPH FOR THE INTERNATIONAL PHARMACOPOEIA EFAVIRENZ, EMTRICITABINE AND TENOFOVIR TABLETS

Lutein Esters from Tagetes Erecta

Development and Validation of a Simultaneous HPLC Method for Quantification of Amlodipine Besylate and Metoprolol Tartrate in Tablets

U.S. Pharmacopeia Methods for HPLC

Comparison of conventional HPLC with UPLC method for determination of albuterol sulfate and it s impurities in pharmaceutical formulation

ISSN: ; CODEN ECJHAO E-Journal of Chemistry 2011, 8(3),

Analysis of Isoflavones with the PerkinElmer Flexar FX-15 UHPLC System Equipped with a PDA Detector

F. Al-Rimawi* Faculty of Science and Technology, Al-Quds University, P.O. Box 20002, East Jerusalem. Abstract

10 Sulfaquinoxaline H N O S O. 4-amino-N-quinoxalin-2-ylbenzenesulfonamide C 14 H 12 N 4 O 2 S MW: CAS No.:

RP- HPLC and Visible Spectrophotometric methods for the Estimation of Meropenem in Pure and Pharmaceutical Formulations

IAJPS 2018, 05 (01), J. Amutha Iswarya Devi et al ISSN Available online at:

International Journal of Pharma and Bio Sciences DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR THE ESTIMATION OF STRONTIUM RANELATE IN SACHET

Development, Estimation and Validation of Lisinopril in Bulk and its Pharmaceutical Formulation by HPLC Method

RP-HPLC Analysis of Temozolomide in Pharmaceutical Dosage Forms

ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE ESTIMATION OF DILTIAZEM HYDROCHLORIDE IN BULK AND PHARMACEUTICAL DOSAGE FORM BY RP- HPLC

Isocratic Reversed Phase Liquid Chromatographic Method Validation for the Determination of Cilostazol in Pure and Formulations

DEVELOPMENT OF RP-HPLC METHOD FOR ESTIMATION OF DROTAVERINE HYDROCHLORIDE IN PHARMACEUTICAL FORMULATIONS

PAPRIKA EXTRACT SYNONYMS DEFINITION DESCRIPTION FUNCTIONAL USES CHARACTERISTICS

Available online at Scholars Research Library

Research Article DEVOLOPMENT OF RP-HPLC METHOD AND IT S VALIDATION FOR SIMULTANEOUS ESTIMATION OF SITAGLIPTIN AND METFORMIN

A stability indicating RP-HPLC method for simultaneous estimation of darunavir and cobicistat in bulk and tablet dosage form

DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR ASSAY AND DISSOLUTION OF METOPROLOL SUCCINATE EXTENDED RELEASE TABLETS

Scholars Research Library. Der Pharmacia Lettre, 2015, 7 (5):44-49 (

CLINDAMYCIN PALMITATE

Journal of Chemical and Pharmaceutical Research, 2017, 9(9): Research Article

ABACAVIR SULFATE Proposal for revision of The International Pharmacopoeia (August 2012)

DRAFT MONOGRAPH FOR THE INTERNATIONAL PHARMACOPOEIA PAEDIATRIC RETINOL ORAL SOLUTION (August 2010)

ISSN (Print)

Draft monograph for inclusion in. The International Pharmacopoeia. Dextromethorphani solutionum peroralum - Dextromethorphan oral solution

The present work was aimed at developing a validated RP-UPLC method for simultaneous estimation of Sitagliptin (Anti

NSave Nature to Survive VALA CLOVIR HYDROCHLORIDE

Development and Validation of a UV-Spectrophotometric Method for Quantification of Atorvastatin in Tablets

Flupyradifurone. HPLC Method

Scholars Research Library

A New Stability-Indicating and Validated RP-HPLC Method for the Estimation of Liraglutide in Bulk and Pharmaceutical Dosage Forms

(ACE) inhibitor class that is primarily used in cardiovascular. conditions. Lisinopril was introduced into therapy in the early

Transcription:

Tramadol Hydrochloride Extended-Release Tablets Type of Posting Revision Bulletin Posting Date 27 May 2016 Official Date 01 Jun 2016 Expert Committee Chemical Medicines Monographs 2 Reason for Revision Compliance In accordance with the Rules and Procedures of the 2015-2020 Council of Experts, the Chemical Medicines Monographs 2 Expert Committee has revised the Tramadol Hydrochloride Extended-Release Tablets monograph. The purpose for the revision is to add Dis Test 4 for drug products approved by the FDA. The liquid chromatographic procedure in Dis Test 4 was validated using a Luna C18 (2) brand of L1 column. The typical retention time for tramadol is about 1.4 minutes. The Tramadol Hydrochloride Extended-Release Tablets Revision Bulletin supersedes the currently official Tramadol Hydrochloride Extended-Release Tablets monograph. The Revision Bulletin will be incorporated in the USP 40 NF 35. Should you have any questions, please contact Hillary Cai (301 230-3379 or hzc@usp.org).

. r Revision Bulletin Official June 1, 2016 Tramadol 1 U = peak response from the Sample = peak response from the Standard Tramadol Hydrochloride Extended- C S = concentration of USP Tramadol Hydrochloride Release Tablets r S C U RS in the Standard = nominal concentration of tramadol hydrochloride in the Sample DEFINITION Tramadol Hydrochloride Extended-Release Tablets contain NLT 90.0% and NMT 110.0% of the labeled amount of Acceptance criteria: 90.0% 110.0% tramadol hydrochloride (C 16H 25NO 2 HCl). PERFORMANCE TESTS IDENTIFICATION A. The retention time of the major peak of the Sample corresponds to that of the Standard, as Change to read: obtained in the Assay. B. ULTRAVIOLET ABSORPTION 197U DISSOLUTION 711 Sample : Use the Sample from the Test 1 Assay. Medium: 0.1 N hydrochloric acid; 900 ml : Using separate 1-cm cells, record the UV spectrum of the Sample and Standard. Times: 2, 4, 8, 10, and 16 h Acceptance criteria: The UV absorption spectrum of Standard : (L/900) mg/ml of USP Tramadol the Sample exhibits maxima and minima at the Hydrochloride RS in Medium, where L is the label same wavelength as that of a similar of the claim in mg/tablet Standard. Sample : Withdraw 10 ml of the under test, and pass through a suitable filter of 0.45- ASSAY µm pore size, discarding the first 4 ml of the filtrate. PROCEDURE Replace the volume withdrawn with the same volume Mobile phase: Tetrahydrofuran, trifluoroacetic acid, tri- of Medium preheated at 37.0 ± 0.5. ethylamine, and water (10: 0.1: 0.1: 90). [NOTE Main- Instrumental conditions tain at a ph range of 2.2 2.4.] Mode: UV Standard stock : 1 mg/ml of USP Tramadol Analytical wavelength: 271 nm Hydrochloride RS prepared by dissolving in 20% of the Cell: 5 cm flask volume of methanol. Sonicate if necessary, and Blank: Medium dilute with water to volume. Standard : 0.13 mg/ml of USP Tramadol Hy- drochloride RS in Mobile phase, from the Standard stock Calculate the concentration (C i), in mg/ml, of Sample : Nominally 0.13 mg/ml of tramadol hydrochloride in Mobile phase. Prepare by dissolving 10 Tablets in 20% of the flask volume of methanol, in a water bath for 60 min, at about 60 with intermittent Result i = (A U/A S) C S shaking. Sonicate for 10 min. Add 40% of the flask volume of water, and sonicate for 30 min. If all Tablets A U = absorbance of the Sample are not fully disintegrated, then continue to sonicate A S = absorbance of the Standard until disintegration is completed. Shake the flask vigor- C S = concentration of USP Tramadol Hydrochloride ously for 10 min using a mechanical shaker, and dilute RS in the Standard with water to volume. Centrifuge a portion of the solutramadol hydrochloride (C 16H 25NO 2 HCl) dissolved tion, pass through a suitable nylon filter, and collect the filtrate after discarding the first 2 ml. Pipet 5.0 ml of the filtrate into a 200-mL volumetric flask, and dilute with Mobile phase to volume. Result 1 = C 1 V (1/L) 100 Result 2 = [(C 2 V) + (C 1 V S)] (1/L) 100 Detector: UV 216 nm Column: 4.6-mm 15-cm; 5-µm packing L11 Result 3 = {(C 3 V) + [(C 2 + C 1) V S]} (1/L) 100 Column temperature: 40 Flow rate: 1 ml/min Injection volume: 10 µl Result 4 = {(C 4 V) + [(C 3 + C 2 + C 1) V S]} (1/L) System suitability 100 Sample: Standard Column efficiency: NLT 2000 theoretical plates Tailing factor: NMT 2.0 Relative standard deviation: NMT 2.0% portion of Tablets taken: Result = (r U/r S) (C S/C U) 100 Result 5 = {(C 5 V) + [(C 4 + C 3 + C 2 + C 1) V S]} (1/L) 100 C i V L V S = concentration of tramadol hydrochloride in the portion of the sample withdrawn at the specified time point = volume of Medium, 900 ml = label claim (mg/tablet) = volume of the Sample withdrawn at each time point and replaced with Medium (ml)

2 Tramadol Official June 1, 2016 Tolerances: See Table 1. Table 3 (Continued) Table 1 3 8 47 72 4 10 60 85 1 2 NMT 15 5 16 NLT 80 2 4 10 40 3 8 50 85 hydrochloride (C 16H 25NO 2 HCl) released at the times 4 10 65 95 specified conform to Dis 711, Acceptance Ta- 5 16 NLT 80 ble 2..Test 3: If the product complies with this test, the labeling indicates that the product meets USP Dissoluhydrochloride (C 16H 25NO 2 HCl) released at the times tion Test 3. specified conform to Dis 711, Acceptance Ta- Medium: 0.1 N hydrochloric acid; 900 ml ble 2. Test 2: If the product complies with this test, the label- Times: 2, 4, 8, and 16 h ing indicates that the product meets USP Dis Buffer: Trifluoroacetic acid and water (2:1000) Test 2. Mobile phase: Acetonitrile and Buffer (30:70) Medium: 0.1 N hydrochloric acid; 900 ml Standard stock : 0.55 mg/ml of USP Tramadol Hydrochloride RS in water Times: 2, 4, 8, 10, and 16 h Standard : (L/900) mg/ml of USP Tramadol Standard stock : 5 mg/ml of USP Tramadol Hydrochloride RS in Medium from the Standard stock Hydrochloride RS in Medium. Sonicate if necessary., where L is the label claim of tramadol hydro- Standard : Dilute the Standard stock chloride, in mg/tablet. Pass the through a with Medium to obtain a concentration of USP suitable filter of 0.45-µm pore size. Discard the first Tramadol Hydrochloride RS (see Table 2). 5 ml of filtrate. Sample : Pass a portion of the under Table 2 test through a suitable filter of 0.45-µm pore size. Replace the portion of withdrawn with an equal Concentration of volume of Medium. Discard the first 5 ml of filtrate. USP Tramadol Label Claim Hydrochloride RS (mg/tablet) 100 0.075 Detector: UV 270 nm 200 0.100 Column: 4.6-mm 25-cm; 5-µm packing L1 300 0.200 Temperatures Autosampler: 10 Sample : Pass a portion of the under Column: 25 test through a suitable filter. Flow rate: 1.0 ml/min Instrumental conditions Injection volume: 20 µl Mode: UV System suitability Analytical wavelength: 271 nm Sample: Standard Cell For Tablets labeled to contain 100 mg: 1 cm Column efficiency: NLT 2000 theoretical plates For Tablets labeled to contain 200 and 300 mg: Tailing factor: NMT 2.0 0.5 cm Relative standard deviation: NMT 2.0% Calculate the concentration (C i), in mg/ml, of Result i = (A U/A S) C S V (1/L) 100 Result i = (r U/r S) C S A U = absorbance of the Sample A S = absorbance of the Standard r U = peak response of tramadol from the Sample C S = concentration of USP Tramadol Hydrochloride RS in the Standard r S = peak response of tramadol from the Standard V = volume of Medium, 900 ml L = label claim (mg/tablet) C S = concentration of USP Tramadol Hydrochloride Tolerances: See Table 3. RS in the Standard Table 3 1 2 NMT 15 2 4 10 30

Official June 1, 2016 Tramadol 3 System suitability Sample: Standard Column efficiency: NLT 1000 theoretical plates Result 1 = C 1 V (1/L) 100 Relative standard deviation: NMT 2% Result 2 = [(C 2 V) + (C 1 V S)] (1/L) 100 Calculate the concentration (C i), in mg/ml, of Result 3 = {(C 3 V) + [(C 2 + C 1) V S]} (1/L) 100 C i Result 4 = {(C 4 V) + [(C 3 + C 2 + C 1) V S]} (1/L) 100 = concentration of tramadol hydrochloride in the portion of sample withdrawn at the specified time point V = volume of medium, 900 ml L = label claim (mg/tablet) V S = volume of the Sample withdrawn at each time point and replaced with Medium (ml) Tolerances: See Table 4. r U r S C S Result i = (r U/r S) C S = peak response of tramadol from the Sample = peak response of tramadol from the Standard = concentration of USP Tramadol Hydrochloride RS in the Standard Result 1 = C 1 V (1/L) 100 Table 4 Result 2 = {[C 2 (V V S)] + (C 1 V S)} (1/L) 100 Dissolved (%) Result 3 = ({C 3 [V (2 V S)]} + [(C 2 + C 1) V S]) (1/ Time 100 mg/tablet L) 100 Point Time and (i) (h) 300 mg/tablet 200 mg/tablet 1 2 NMT 40 NMT 35 Result 4 = ({C 4 [V (3 V S)]} + [(C 3 + C 2 + C 1) V S]) 2 4 45 75 32 62 (1/L) 100 3 8 NLT 70 NLT 70 4 16 NLT 85 NLT 85 Result 5 = ({C 5 [V (4 V S)]} + [(C 4 + C 3 + C 2 + C 1) V S]) (1/L) 100 hydrochloride (C 16H 25NO 2 HCl) released at the times C i = concentration of tramadol hydrochloride in specified conform to Dis 711, Acceptance Ta- the portion of sample withdrawn at the ble 2. specified time point (RB 1-Oct-2015) V = volume of Medium, 900 ml.test 4: If the product complies with this test, the L = label claim (mg/tablet) labeling indicates that the product meets USP Dissolu- V S = volume of the Sample withdrawn at tion Test 4. each time point (ml) Medium: 0.1 N hydrochloric acid; 900 ml Tolerances: See Table 5. Times: 2, 4, 8, 10, and 16 h Buffer: Dissolve 6.8 g of monobasic potassium phos- Table 5 phate in 1 L of water and adjust with phosphoric acid to a ph of 3.0. Mobile phase: Acetonitrile and Buffer (20:80) Standard : 0.22 mg/ml of USP Tramadol Hy- 1 2 NMT 35 drochloride RS in Medium. Sonication may be neces- 2 4 35 60 sary for complete dis. 3 8 60 85 Sample : Pass a portion of the under 4 10 NLT 65 test through a suitable filter of 0.45-µm pore size. 5 16 NLT 75 Detector: UV 270 nm hydrochloride (C 16H 25NO 2 HCl) released at the times Column: 4.6-mm 5-cm; 3-µm packing L1 specified conform to Dis 711, Acceptance Table 2. (RB 1-Jun-2016) Flow rate: 1.5 ml/min UNIFORMITY OF DOSAGE UNITS Injection volume: 10 µl 905 : Meet the Run time: NLT 6 times the retention time of requirements tramadol

4 Tramadol Official June 1, 2016 IMPURITIES r S = peak response of tramadol from the Standard Change to read: C S = concentration of USP Tramadol Hydrochloride RS in the Standard C U = nominal concentration of tramadol ORGANIC IMPURITIES hydrochloride in the Sample Mobile phase: Acetonitrile, trifluoroacetic acid, and water (20: 0.1: 80) F = relative response factor (see.table 6) (RB 1-Jun- Diluent: Methanol and water (1:4) 2016) System suitability stock : 0.05 mg/ml each of Acceptance criteria: See.Table 6. (RB 1-Jun-2016) USP Tramadol Hydrochloride RS and USP Tramadol Related Compound A RS in Diluent prepared by dissolving in 20% of the flask volume of methanol. Sonicate if.table 6 (RB 1-Jun-2016) necessary, and dilute with water to volume. Relative Relative Acceptance System suitability : 2.5 µg/ml each of USP Retention Response Criteria, Tramadol Hydrochloride RS and USP Tramadol Related Name Time Factor NMT (%) Compound A RS in Diluent, from the System suitability Desmethyl stock tramadol.0.20 (RB 1-Oct- Standard stock : 0.05 mg/ml of USP (impurity D) 0.57 1.0 2015) Tramadol Hydrochloride RS in Diluent prepared by dis- a. Tramadol related solving in 20% of the flask volume of methanol. Sonicompound A 0.84 1.0 0.2 cate if necessary, and dilute with water to volume. b. Standard : 2.5 µg/ml of USP Tramadol Hydro- Tramadol chloride RS in Diluent, from the Standard stock hydrochloride 1.00 Sample : Nominally 1.2 mg/ml of tramadol 1,6 Olefin 2.78 3.0 c. hydrochloride in Diluent. Finely powder NLT 20 Tablets. 1,2 Olefin d. 3.28 2.2 Transfer a portion of the powder, equivalent to 300 mg Individual of tramadol hydrochloride, to a 250-mL volumetric unspecified.0.20 (RB 1-Octflask. Add about 50 ml of methanol and heat in a impurity 1.0 2015) water bath for 20 min at about 60, with intermittent.0.60 (RB 1-Octshaking to disperse the powder. Sonicate for 10 min. Total impurities 2015) Add 100 ml of water, and sonicate with intermittent a. 3-{(1RS,2RS)-2-[(Dimethylamino)methyl]-1-hydroxycyclohexyl}phenol. shaking for 10 min. Shake the flask vigorously for 10 b. RS,SR-1-(3-Methoxyphenyl)-2-(dimethylaminomethyl)cyclohexanol.hymin using a mechanical shaker. Dilute with water to drochloride. (RB 1-Oct-2015) volume, pass through a suitable nylon filter, and collect c. 1-(3-Methoxyphenyl)-2-(dimethylaminomethyl) cyclohex-6-ene hydrochloride (identified and reported as an individual unspecified impurity if the filtrate after discarding the first 4 ml of filtrate. present). d. 1-(3-Methoxyphenyl)-2-(dimethylaminomethyl) cyclohex-1-ene hydro- chloride (identified and reported as an individual unspecified impurity if present). Detector: UV 216 nm Column: 2.1-mm 10-cm; 1.7-µm packing L1 ADDITIONAL REQUIREMENTS Column temperature: 50 PACKAGING AND STORAGE: Preserve in tight containers, Flow rate: 0.6 ml/min and store at controlled room temperature. Injection volume: 3 µl LABELING: When more than one test for Dis is Run time: 6 min given, the labeling states the test for Dis used System suitability only if Test 1 is not used. Samples: System suitability and Standard Change to read: Re: NLT 3.0 between tramadol related com- USP REFERENCE STANDARDS 11 pound A and tramadol, System suitability USP Tramadol Hydrochloride RS Column efficiency: NLT 5000 theoretical plates, (±)-cis-2-[(dimethylamino)methyl]-1-(m-methox- Standard yphenyl)cyclohexanol hydrochloride. Capacity factor, k : NLT 1.5, Standard C 16H 25NO 2 HCl 299.84 Tailing factor: NMT 2.0, Standard USP Tramadol Related Compound A RS Relative standard deviation: NMT 6.0%, Standard RS,SR-1-(3-Methoxyphenyl)-2-(dimethylami nomethyl)cyclohexanol.hydrochloride. (RB 1-Oct-2015) C 16H 25NO 2 HCl 299.84 Calculate the percentage of each impurity in the portion of Tablets taken: r U Result = (r U/r S) (C S/C U) (1/F) 100 = peak response of each individual impurity from the Sample