Warning letter · FDA Warning Letters

Metamune Inc: FDA Warning Letter 614543 (Sep 7, 2021)

Agency action: Sep 7, 2021Record ID: fda_warning_-1b74bebe631a52ca
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What happened

Original notice title

Metamune Inc MARCS-CMS 614543, September 07, 2021

From the archived source record

A drug is misbranded under section 502(f)(1) of the Act [21 U.S.C. 352(f)(1)] if the drug fails to bear adequate directions for its intended use(s). Accordingly, DiabetesSupport, fails to bear adequate directions for its intended use and, therefore, the product is misbranded under section 502(f)(1) of the Act [21 U.S.C. 352(f)(1)]. The introduction or delivery for introduction into interstate commerce of this misbranded drug violates section 301(a) of the Act [21 U.S.C. 331(a)]. This letter is not intended to be an all‐inclusive statement of violations that may exist in connection with your product. You are responsible for investigating and determining the causes of any violations and for preventing their recurrence or the occurrence of other violations. This letter notifies you of our concerns and provides you an opportunity to address them. Failure to adequately address these matters may result in legal action including, without limitation, seizure and injunction. Include an explanation of each step being taken to prevent the recurrence of violations, as well as copies of related documentation. If you believe that your products are not in violation of the Act, include your reasoning and any supporting information for our consideration. Your written reply to the above violations should be directed to Rob Genzel Jr. with the FDA via email at CFSANResponse@fda.hhs.gov. The FTC is concerned that one or more of the efficacy claims cited above may not be substantiated by competent and reliable scientific evidence. Violations of the FTC Act may result in legal action seeking a Federal District Court injunction or Administrative Cease and Desist Order. In addition, marketers who make deceptive claims about the treatment, cure, prevention, or mitigation of a disease may be subject to a civil penalty of up to $43,792 per violation pursuant to Section 5(m)(1)(B) of the FTC Act, 15 U.S.C. § 45(m)(1)(B), and may be required to pay refunds to consumers or provide other relief pursuant to Section 19(b) of the FTC Act, 15 U.S.C. § 57b(b).

What the official notice says to do

Check the original notice for the instructions that apply to the named product, company, and affected lots.

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Status and source details

Status recorded in the archive
FDA closeout listed
Source checked
Jul 16, 2026
Record revision
71a790ce5843

This is a dated record. Its current status may have changed since the source was captured. A record applies to its stated scope; it is not a safety rating for every product from a company.

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What is affected

Product
Effective Prediabetes Diabetic Supplement; DiabetesSupport
Company
Metamune Inc
Lot / identifier
The source does not specify this field.
Market / distribution
The source does not specify this field.