Ingredient record · Muscle relaxant
Chlorzoxazone: bans, restrictions and failed batches in India
Last checked 3 November 2026. Sources: CDSCO banned-drugs notifications and monthly NSQ alerts, Jan 2019 to Sep 2026
6 entries containing Chlorzoxazone are on India's banned-drugs list, and 4 are banned today. 15 batches of medicines containing Chlorzoxazone failed a government lab test between August 2024 and September 2026, from 14 manufacturers. A failed batch concerns that batch only, not the medicine or every brand.
4
Banned combinations in force
2
Other listed orders (stayed, restricted, quashed)
15
Batches failed a lab test
Sep 2026
Latest lab alert
On the banned-drugs list
Chlorzoxazone on its own is not on CDSCO's banned list. The entries below are specific combinations that contain it. Status follows CDSCO's own notes on each entry.
| Drug / combination | Action | Notification | Date | Order | Status note |
|---|---|---|---|---|---|
| Chlorzoxazone + Ibuprofen + Paracetamol + Diclofenac + Oxyphenbutazone + Magnesium HydroxideFixed-dose combination · painkillers | Banned | S.O. 187(E) | 11 January 2019 | Other orders | One of 80 FDCs prohibited vide S.O. 180(E)-259(E) dated 11.01.2019 (CDSCO letter 22.01.2019). In force per CDSCO list as on 22.11.2021. |
| Chlorzoxazone + Paracetamol + Ibuprofen + Diclofenac SodiumFixed-dose combination · painkillers | Banned | S.O. 188(E) | 11 January 2019 | Other orders | One of 80 FDCs prohibited vide S.O. 180(E)-259(E) dated 11.01.2019 (CDSCO letter 22.01.2019). In force per CDSCO list as on 22.11.2021. |
| Diclofenac + Tramadol + ChlorzoxazoneFixed-dose combination · painkillers | Banned | S.O. 4384(E) | 7 September 2018 | 328 FDCs · Sep 2018 | In force per CDSCO list as on 22.11.2021 |
| Diclofenac + Paracetamol + Chlorzoxazone + FamotidineFixed-dose combination · painkillers | Banned | S.O. 4387(E) | 7 September 2018 | 328 FDCs · Sep 2018 | In force per CDSCO list as on 22.11.2021 |
| Diclofenac + Tramadol + ChlorzoxazoneFixed-dose combination · painkillers | Quashed | S.O. 710(E) | 10 March 2016 | 344 FDCs · Mar 2016 | Quashed by Delhi HC 1 Dec 2016; see 2018 re-ban |
| Diclofenac + Paracetamol + Chlorzoxazone + FamotidineFixed-dose combination · painkillers | Quashed | S.O. 715(E) | 10 March 2016 | 344 FDCs · Mar 2016 | Quashed by Delhi HC 1 Dec 2016; see 2018 re-ban |
Products that failed lab tests
Product names as printed by the testing labs, grouped. Open a product to see every batch number.
| Product | Batches | Makers | Latest |
|---|---|---|---|
| Aceclofenac Paracetamol Chlorzoxazone | 6 | 6 | Sep 2026 |
| Diclofenac Sodium Paracetamol Chlorzoxazone | 3 | 3 | Mar 2026 |
| Diclofenac Potassium Paracetamol Chlorzoxazone | 1 | 1 | Mar 2026 |
| Diclofenac Potassium Chlorzoxazone | 1 | 1 | Jan 2026 |
| Diclofenac Sodium Paracetamol Chlorzoxazone Diclotrum | 1 | 1 | Dec 2025 |
| Lilion | 1 | 1 | Jun 2025 |
| Myoplus Paracetamol Chlorzoxazone Tabletes | 1 | 1 | Oct 2024 |
| Nimesulide Paracetamol Chlorzoxazone | 1 | 1 | Aug 2024 |
Most recent failed batches
| Product | Batch | Manufacturer | Reason declared NSQ | Tested by | Alert |
|---|---|---|---|---|---|
| Aceclofenac, Paracetamol & Chlorzoxazone Tablets | Batch AT25-0938AMfg Nov 2025 · Exp Oct 2027 | Aspo Pharmaceuticals LLPHimachal Pradesh | The sample does not conform to declared formula, in respect of content of Aceclofenac.Other | LUCKNOW, Uttar PradeshState lab | Sep 2026 |
| Diclofenac Sodium, Paracetamol and Chlorzoxazone Tablets | Batch ZACF 2505Mfg Jul 2025 · Exp Jun 2027 | Akums Drugs & Pharmaceuticals LtdUttarakhand | DescriptionDescription | DTL, JaipurState lab | Mar 2026 |
| Diclofenac Potassium, Paracetamol & Chlorzoxazone Tablets. | Batch AT24-1055Mfg Nov 2024 · Exp Oct 2026 | Aspo Pharmaceuticals LLPHimachal Pradesh | Disintegration Test.Disintegration | DTL, BaddiState lab | Mar 2026 |
| Aceclofenac, Paracetamol & Chlorzoxazone Tablets | Batch ST243397Mfg Mar 2025 · Exp Feb 2027 | Star Filteration SystemsHimachal Pradesh | DescriptionDescription | RDTL, Bellary, KarnatakaState lab | Mar 2026 |
| Aceclofenac, Paracetamol & Chlorzoxazone Tablets | Batch DT-306AMfg Sep 2025 · Exp Aug 2027 | Magnus Biotech Pvt. Ltd | DescriptionDescription | DTL, Bengaluru, KarnatakaState lab | Mar 2026 |
| Paracetamol, Diclofenac Sodium & Chlorzoxazone Tablets IP | Batch NPL-5105Mfg Dec 2024 · Exp Nov 2026 | IBN Herbals Kh. No. 63Himachal Pradesh | Rough surface on tabletsOther | FDTL,UttarakhandState lab | Feb 2026 |
| Aceclofenac, Paracetamol & Chlorzoxazone Tablets, | Batch GT14431BMfg Jul 2024 · Exp Jun 2026 | JM LaboratoriesHimachal Pradesh | Sample fails the test Assay for Aceclofenac' in Aceclofenac, Paracetamol and Chlorzoxazone Tablets as specified in the Laboratory Protocol.Assay | DTL ThiruvananthapuramState lab | Feb 2026 |
| Diclofenac Potassium & Chlorzoxazone Tablets | Batch SMT-3395Mfg Sep 2025 · Exp Aug 2027 | SMBJ Pharmaceuticals Pvt. LtdHaryana | The sample nas been declared as Not of Standard Quality as it does not conform to IP Standards with respect Teet fhe to Test for DisintegrationDisintegration | KarnatakaState lab | Jan 2026 |
| Aceclofenac, Paracetamol & Chlorzoxazone Tablets | Batch VGT/2201Mfg Apr 2024 · Exp Mar 2026 | Vats Biotech Pvt. LtdHimachal Pradesh | Description and Assay for AceclofenacAssay | RDTL, Bellary, KarnatakaState lab | Jan 2026 |
| Diclofenac Sodium, Paracetamol & Chlorzoxazone Tablets Diclotrum-MR | Batch SGT-231863Mfg Jan 2024 · Exp Dec 2025 | Spectrum Formulation Pvt. LtdUttarakhand | The sample does not conform to claim with respect to Description.Description | CDL, KolkataCDSCO lab | Dec 2025 |
| Aceclofenac, Paracetamol Chlorzoxazone Tablets (Nimal-MR) | Batch DPT-2882Mfg Mar 2024 · Exp Feb 2026 | Dexibo Pharma Pvt. LtdUttarakhand | Failed in DescriptionDescription | DTL, PuducherryState lab | Oct 2025 |
| Lilion-MR Tablets (Aceclofenac, Paracetamol & Chlorzoxazone Tablets) | Batch CCT24984BMfg Jul 2024 · Exp Jun 2026 | Cent Cure Pvt. LtdHimachal Pradesh | Assay for Aceclofenac and ChlorzoxazoneAssay | State Lab KarnatakaState lab | Jun 2025 |
| Myoplus Tablets, Paracetamol & Chlorzoxazone Tabletes | Batch MT24-1Mfg Apr 2024 · Exp Mar 2026 | Leostar Healthcare Pvt. LtdTelangana | NOT OF STANDARD QUALITY 18 Tablets were tested. All the 18 tablets did not Disintigrate within the time limit (i.e 15 Minutes) specified as per IP.Other | State Lab Drugs Control Laboratory, TelanganaState lab | Oct 2024 |
| Diclofenac Sodium, Paracetamol & Chlorzoxazone Tablets | Batch DCPT3310Mfg Sep 2023 · Exp Aug 2025 | Modern LaboratoriesMadhya Pradesh | DisintegrationDisintegration | CDL KolkataCDSCO lab | Oct 2024 |
| Nimesulide, Paracetamol and Chlorzoxazone Tablets (NICIP MR) | Batch GS22236Mfg Sep 2022 · Exp Aug 2025 | HSN InternationalUttarakhand | DisintegrationDisintegration | CDL KolkataCDSCO lab | Aug 2024 |
Holding a strip or bottle? The batch number is printed after "B. No." Check it against every alert. If it matches, return it to the pharmacy. What the labels mean: status guide.