Drugs

Shenzhen Hengkaifeng Commerce and Trade Co., Ltd

FDA issued a warning letter to Shenzhen Hengkaifeng Commerce and Trade Co., Ltd (Shenzhen Shi, Guangdong Sheng, China) on May 6, 2025, citing 21 CFR 207.49, 21 CFR 207.57 and 21 CFR 207.33. Subject: Failure to List, Misbranded.

From the letter: “The listing for Sensitivity Toothpastes states that the name of the active ingredient(s) is hydrated silica but the labeling lists the active ingredients as potassium nitrate 5% and sodium fluoride 0.1%.”

Shenzhen Shi, Guangdong Sheng, ChinaIssued May 6, 2025Posted May 27, 2025No close-out recorded

At a glance

What a reviewer notes before reading: findings, citations, the response deadline and what the letter warns of.

Violations
2 findings · 1 issue type
Response due
15 working days after receipt of this letter
FDA asks for
4 actions
Named as possible actions
Seizure, injunction
Issued by
Center for Drug Evaluation and Research
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.

01Registration, listing & premarket · 21 CFR 207.49(a)(4)The drug listing incorrectly identifies the active ingredient as hydrated silica instead of potassium nitrate and sodium fluoride.
The listing for Sensitivity Toothpastes states that the name of the active ingredient(s) is hydrated silica but the labeling lists the active ingredients as potassium nitrate 5% and sodium fluoride 0.1%.
02Registration, listing & premarket · 21 CFR 207.49(a)(6)The drug listing incorrectly states the dosage form and route of administration as liquid and oral instead of foam for dental administration.
Your listing submission for Sensitivity Toothpastes states its dosage form and route of administration as liquid and oral, respectively. However, the product label states it is a foam for dental administration.

What FDA requested

  • Notify FDA in writing within 15 working days of steps taken
  • Explain each step to prevent recurrence of violations
  • Provide copies of related documentation
  • State reason for delay if corrective actions cannot be completed within 15 days

FDA Warning Letter

18 paragraphs · 3 sections

Text 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)

DatedMay 6, 2025
Sent toRE: 2793 (CMS 706318)
AddressedWhom It May Concern

1Introduction

1 paragraph

This letter concerns your firm’s drug listing information provided to FDA’s electronic Drug Registration and Listing System (eDRLS) for your drug product, Sensitivity Toothpastes (NDC 84117-013).1 Your firm has not fulfilled its listing obligations under section 510(j) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C 360(j), which is a prohibited act under section 301(p) of the FD&C Act, 21 U.S.C. 331(p). In addition, your drug product, Sensitivity Toothpastes, is not properly listed with FDA, causing it to be a misbranded drug under section 502(o) of the FD&C Act, 21 U.S.C. 352(o). Introduction or delivery for introduction of a misbranded drug into interstate commerce is prohibited under section 301(a) of the FD&C Act, 21 U.S.C. 331(a). These violations are described in more detail below.

2Drug Listing Violations

4 paragraphs

Section 510(j) of the FD&C Act, 21 U.S.C. 360(j), and 21 CFR Part 207 outline the requirements for establishment registration and drug listing. Under 21 CFR 207.49(a)(4), a firm must include in the listing submission to FDA the name and quantity of each active pharmaceutical ingredient in the listed drug. The listing for Sensitivity Toothpastes states that the name of the active ingredient(s) is hydrated silica but the labeling lists the active ingredients as potassium nitrate 5% and sodium fluoride 0.1%.

Furthermore, under 21 CFR 207.49(a)(6) & (11), each registrant must provide the dosage form and the route of administration for the listed drug. Your listing submission for Sensitivity Toothpastes states its dosage form and route of administration as liquid and oral, respectively. However, the product label states it is a foam for dental administration.

Therefore, your firm has not fulfilled its listing obligations under section 510(j) of the FD&C Act, 21 U.S.C. 360(j), which is a prohibited act under section 301(p) of the FD&C Act, 21 U.S.C. 331(p). In addition, Sensitivity Toothpastes is not properly listed with FDA causing it to be a misbranded drug under section 502(o) of the FD&C Act, 21 U.S.C. 352(o). Introduction or delivery for introduction of such a product into interstate commerce is prohibited under section 301(a) of the FD&C Act, 21 U.S.C. 331(a).

Complete, accurate, and up-to-date establishment registration and drug listing information is essential to promote and protect patient safety. FDA relies on establishment registration and drug listing information for several key programs, including drug establishment inspections, supply chain security, and post-market surveillance. Establishment registration and drug listing information is also widely used outside FDA for purposes such as electronic prescribing and electronic health records, insurance reimbursement, and patient education. We note that this warning letter only addresses listing issues associated with your product.

3Conclusion

4 paragraphs

This letter is not intended to be an all-inclusive statement of violations that may exist in connection with your product(s). You are responsible for investigating and determining the causes of any violations and for preventing their recurrence or the occurrence of other violations. It is your responsibility to ensure that your firm complies with all requirements of federal law, including FDA regulations.

This letter notifies you of our concerns and provides you an opportunity to address them. Failure to adequately address this matter may result in legal action including, without limitation, seizure, and injunction.

Please notify FDA in writing, within 15 working days of receipt of this letter, of the specific steps you have taken to address any violations. Include an explanation of each step being taken to prevent the recurrence of violations, as well as copies of related documentation. If you cannot complete corrective actions within 15 working days, state the reason for the delay and the time within which you will do so. In absence of a corrective action, the deficient listing data will not be available for certification under 21 CFR 207.57(b)(2) requirements and will be ultimately inactivated by FDA. If you believe that your products are not in violation of the FD&C Act, include your reasoning and any supporting information for our consideration.

Your response should be sent to U.S. Food and Drug Administration, Center for Drug Evaluation and Research/Office of Compliance/Office of Unapproved Drugs and Labeling Compliance by e-mail to eDRLS@fda.hhs.gov. Please be aware that a manual override may be required for certain types of revisions made to an existing drug listing file. If you receive a validation error or have any questions regarding the contents of this letter, please contact us at eDRLS@fda.hhs.gov for further assistance. Include the case identification numbers (2793) (CMS 706318) on all correspondence.

Sincerely,/S/Tina Smith, M.S.Captain, U.S. Public Health ServiceDirectorOffice of Unapproved Drugs and Labeling ComplianceOffice of ComplianceCenter for Drug Evaluation and ResearchU.S. Food and Drug Administration

____________________

1 On September 11, 2024, we sent your firm a drug listing deficiency letter describing the observed listing deficiencies in the information you submitted for the drug listing of Sensitivity Toothpastes, NDC 84117-013. On October 26, 2024, we sent your firm a data removal notification informing you of a data removal action. As stated in that email, the continued deficiencies resulted in your product’s data removal from FDA’s National Drug Code Directory. Additionally, on January 31, 2025, we sent your firm another email that included two additional deficiencies found in your listing data. FDA sends listing deficiency letters and data removal notifications to the contact person found in the labeler code SPL submitted to FDA. If this information has changed, it is your responsibility to update your listing(s) within 30 days of any change, under 21 CFR 207.33(c).

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 207

Issue types

Record details

Issuing center
Center for Drug Evaluation and Research
Issuing office
Center for Drug Evaluation and Research
Location
Shenzhen Shi, Guangdong Sheng, China
Letter posted date
May 27, 2025
Letter issue date
May 6, 2025
Addressed to
Not recorded
Inspection dates
Not recorded
Response window
15 working days after receipt of this letter
Read the source clause
Please notify FDA in writing, within 15 working days of receipt of this letter, of the specific steps you have taken to address any violations.
Record length
913 words · 1 recorded redactions
Published status
No published close-out
FDA reference
706318
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.

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