Max Chemical Inc.
FDA issued a warning letter to Max Chemical Inc. (San Juan, Puerto Rico) on Jun 20, 2024, citing 21 CFR 211.84, 21 CFR 211.100, 21 CFR 211.22, 21 CFR 211.165 and 3 more regulations. Subject: CGMP, Finished Pharmaceuticals, Unapproved New Drug, Misbranded, Adulterated.
From the letter: “You failed to conduct an identity test on each shipment of each lot of components used in the production of your drug products, including the active ingredients (i.e., isopropyl and ethyl alcohol).”
At a glance
What a reviewer notes before reading: findings, citations, the response deadline and what the letter warns of.
- Violations
- 3 findings · 3 issue types
- Cited
- 21 CFR 211.84, 21 CFR 211.100, 21 CFR 211.22, 21 CFR 211.165, 21 CFR 211.137, 21 CFR 211.192, 21 CFR 211.25
- Response due
- Not stated in the letter
- FDA asks for
- 4 actions
- Named as possible actions
- Seizure, injunction
- Issued by
- Office of Pharmaceutical Quality Operations, Division II · Office of Inspections and Investigations
- Published status
- No close-out recorded
AI assisted findings
Model-assisted reading of each issue. Open one to see the FDA text it comes from, and check it against the full letter.
01Components & suppliers · 21 CFR 211.84(d)(1)Failed to test each component shipment for identity and conformity with specifications, relying on supplier COAs without establishing reliability.
You failed to conduct an identity test on each shipment of each lot of components used in the production of your drug products, including the active ingredients (i.e., isopropyl and ethyl alcohol). Additionally, you relied on the certificates of analysis (COAs) from your suppliers and failed to establish the reliability of each of your suppliers’ COAs for component specifications and characteristics.
02Production & process controls · 21 CFR 211.100(a)Water system used as a component was not adequately qualified or monitored to ensure suitability for intended use.
Your water system is not adequately qualified and monitored to ensure the system is operating properly, and continuously producing water suitable for its intended use.
03Quality unit & oversight · 21 CFR 211.22Quality unit failed to ensure adequate finished product testing, stability program, investigations, and employee training.
Your firm failed to establish an adequate quality unit (QU) with responsibilities to ensure adequate oversight for the manufacture of your drug products.
Additional FDA passages
4 extracted findingsSelected FDA passages, not the complete letter.
Your firm failed to test samples of each component for identity and conformity with all appropriate written specifications for purity, strength, and quality. (21 CFR 211.84(d)(1) and 211.84(d)(2)).
Your firm failed to establish written procedures for production and process control designed to assure that the drug products you manufacture have the identity, strength, quality, and purity they purport or are represented to possess. (21 CFR 211.100(a)).
Your firm failed to establish an adequate quality unit (QU) with responsibilities to ensure adequate oversight for the manufacture of your drug products. For example, your QU failed to ensure:
Failure to address violations may also cause FDA to withhold issuance of Export Certificates. FDA may withhold approval of new applications or supplements listing your firm as a drug manufacturer until any violations are completely addressed and we confirm your compliance with CGMP. We may re-inspect to verify that you have completed corrective actions to address any violations.
What FDA requested
- Notify this office before resuming any drug manufacturing operations
- Engage a consultant qualified as set forth in 21 CFR 211.34 to evaluate operations and assist in meeting CGMP requirements
- Have the qualified consultant perform a comprehensive six-system audit of the entire operation for CGMP compliance
- Evaluate the completion and efficacy of corrective actions and preventive actions before pursuing resolution of compliance status
FDA Warning Letter
31 paragraphs · 4 sectionsText as published on FDA.gov, retrieved Sep 8, 2026. Layout added for reading; the wording is FDA’s. View on FDA.gov (opens in a new tab)
1Introduction
5 paragraphs
The U.S. Food and Drug Administration (FDA) inspected your drug manufacturing facility, Max Chemical Inc., FEI 3002088200, at Calle La Brisa #7, Urb. Industrial Sabana Llana, San Juan, from March 11 to 15, 2024.
This warning letter summarizes significant violations of Current Good Manufacturing Practice (CGMP) regulations for finished pharmaceuticals. See Title 21 Code of Federal Regulations (CFR), parts 210 and 211 (21 CFR parts 210 and 211).
Because your methods, facilities, or controls for manufacturing, processing, packing, or holding do not conform to CGMP, your drug products are adulterated within the meaning of section 501(a)(2)(B) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C. 351(a)(2)(B).
We reviewed your April 3, 2024 response to our Form FDA 483 in detail. Your response is inadequate because you failed to provide supportive documentation for evaluation or adequate evidence of corrective actions taken to bring your operations into compliance with CGMP.
During our inspection, our investigators observed specific violations including, but not limited to, the following.
21. Your firm failed to test samples of each component for identity and conformity with all appropriate written specifications for purity, strength, and quality. (21 CFR 211.84(d)(1) and 211.84(d)(2)).
9 paragraphs
You failed to conduct an identity test on each shipment of each lot of components used in the production of your drug products, including the active ingredients (i.e., isopropyl and ethyl alcohol). Additionally, you relied on the certificates of analysis (COAs) from your suppliers and failed to establish the reliability of each of your suppliers’ COAs for component specifications and characteristics.
You also failed to determine whether each component conformed with all appropriate written specifications for purity, strength, and quality before using them. Without adequate testing, you do not have scientific evidence that the components conform to appropriate specifications before use in the manufacture of your drug products.
2. Your firm failed to establish written procedures for production and process control designed to assure that the drug products you manufacture have the identity, strength, quality, and purity they purport or are represented to possess. (21 CFR 211.100(a)).
Your firm uses water as a component in your over-the-counter (OTC) drug products. Your water system is not adequately qualified and monitored to ensure the system is operating properly, and continuously producing water suitable for its intended use.
Water for pharmaceutical purposes must be suitable for its intended use and routinely tested to ensure ongoing conformance with appropriate chemical and microbiological attributes. The lack of adequate validation provides no assurance the system performs as intended, and subsequent use of inadequately (b)(4) water in pharmaceutical manufacturing can adversely affect drug product quality and patient safety.
3. Your firm’s quality control unit failed to exercise its responsibility to ensure drug products manufactured are in compliance with CGMP, and meet established specifications for identity, strength, quality, and purity (21 CFR 211.22).
Your firm failed to establish an adequate quality unit (QU) with responsibilities to ensure adequate oversight for the manufacture of your drug products. For example, your QU failed to ensure:
• Adequate finished product testing (21 CFR 211.165(a) and 211.165(b)). • Establishment of an adequate stability program (21 CFR 211.137(a)). • Adequate investigations of in-process testing failures (21 CFR 211.192). • Adequate training for employees engaged in the manufacture, processing, packing, or holding of drug products (21 CFR 211.25(a)).
Your firm’s quality systems are inadequate. See FDA’s guidance document Quality Systems Approach to Pharmaceutical CGMP Regulations for help implementing quality systems and risk management approaches to meet the requirements of CGMP regulations 21 CFR, parts 210 and 211 at https://www.fda.gov/media/71023/download.
3Drug Production Ceased
3 paragraphs
We acknowledge your commitment to cease production of all drugs at this facility.
If you plan to resume any manufacturing operations regulated under the FD&C Act, notify this office before resuming your drug manufacturing operations. Should you resume manufacturing drugs, based upon the nature of the violations we identified at your firm, you should engage a consultant qualified as set forth in 21 CFR 211.34 to evaluate your operations and to assist your firm in meeting CGMP requirements. The qualified consultant should also perform a comprehensive six-system audit of your entire operation for CGMP compliance and evaluate the completion and efficacy of your corrective actions and preventive actions before you pursue resolution of your firm’s compliance status with FDA.
Your use of a consultant does not relieve your firm’s obligation to comply with CGMP. Your firm’s executive management remains responsible for resolving all deficiencies and systemic flaws to ensure ongoing CGMP compliance.
4Conclusion
7 paragraphs
The violations cited in this letter are not intended to be an all-inclusive list of violations that exist at your facility. You are responsible for investigating and determining the causes of any violations and for preventing their recurrence or the occurrence of other violations.
Correct any violations promptly. Failure to promptly and adequately address this matter may result in regulatory or legal action without further notice including, without limitation, seizure and injunction. Unresolved violations may also prevent other Federal agencies from awarding contracts.
Failure to address violations may also cause FDA to withhold issuance of Export Certificates. FDA may withhold approval of new applications or supplements listing your firm as a drug manufacturer until any violations are completely addressed and we confirm your compliance with CGMP. We may re-inspect to verify that you have completed corrective actions to address any violations.
This letter notifies you of our findings and provides you an opportunity to address the above deficiencies. After you receive this letter, respond to this office in writing within 15 working days. Specify what you have done to address any violations and to prevent their recurrence. In response to this letter, you may provide additional information for our consideration as we continue to assess your activities and practices. If you cannot complete corrective actions within 15 working days, state your reasons for delay and your schedule for completion.
Your written notification should refer to case # 682037.
Please electronically submit your reply, on company letterhead, to Dayna I. Martinez, Compliance Officer, at ORAPHARM2_RESPONSES@fda.hhs.gov, and dayna.martinez@fda.hhs.gov.
If you have questions regarding the contents of this letter, you may contact Dayna I. Martinez via phone at (787) 729-8608 or email at dayna.martinez@fda.hhs.gov.
Citations and trends
Each 21 CFR section, ISO 13485 clause and issue type in this letter, how often it appears across all letters, and its trend by the year FDA issued the letters. 2026 runs to Nov 3, 2026, compared with the same dates last year. Select a row or a bar to see those letters in Letters. As cited in this historical letter, not a statement of current requirements.
Regulations
Also cited: 21 CFR 210
Issue types
Record details
- Issuing center
- Office of Inspections and Investigations
- Issuing office
- Office of Pharmaceutical Quality Operations, Division II
- Location
- San Juan, Puerto Rico
- Letter posted date
- Jul 16, 2024
- Letter issue date
- Jun 20, 2024
- Addressed to
- President
- Inspection dates · model-assisted
- Mar 11, 2024 to Mar 15, 2024
- Response window
- Not verified in this snapshot. Consult the original letter.
- Record length
- 1,049 words · 1 recorded redactions
- Published status
- No published close-out
- Original letter
- View on FDA.gov (opens in a new tab)
- Dataset last checked
- Nov 11, 2026 · How this is built
A response window is not a calculated due date. Source excerpts are selected passages. Finding interpretations and categories are model-assisted. Verify the original letter before relying on a finding.