Warning letter · FDA Warning Letters

Umbrella: FDA Warning Letter 612037 (May 18, 2021)

Agency action: May 18, 2021Record ID: fda_warning_-d46bb24fa0d752ff
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What happened

Original notice title

Umbrella MARCS-CMS 612037, May 18, 2021

From the archived source record

As described below, these products are unapproved new drugs sold in violation of sections 505(a) and 301(d) of the Federal Food, Drug, and Cosmetic Act (FD&C Act) [21 U.S.C. §§ 355(a) and 301(d)] and misbranded drugs sold in violation of sections 502 and 301(a) of the FD&C Act [21 U.S.C. §§ 352 and 331(a)]. “Alpha Male Plus” FDA confirmed through laboratory analysis that a sample of your “Alpha Male Plus” contains the undeclared active pharmaceutical ingredient tadalafil, which is a phosphodiesterase type-5 (PDE-5) inhibitor. This undeclared ingredient may interact with nitrates found in some prescription drugs, such as nitroglycerin, and may lower blood pressure to dangerous levels. FDA has issued a warning to consumers not to use “Alpha Male Plus” (see Alpha Male Plus Immediate Public Notification [see original source] Dietary supplementation with NACET improves the bioavailability of NAC in tissue cells (i.e. lung tissue at risk of COVID-19 induced oxidative damage). . . . The safe bet now is to prepare to deal with infeciton [sic] rather than naively hoping to avoid it. Did you know . . . that dietary supplementation with NACET improves the bioavailability of NAC in tissue cells (i.e. lung tissue at risk of COVID-19 induced oxidative damage). . . . FDA is taking urgent measures to protect consumers from certain products that, without approval or authorization by FDA, claim to mitigate, prevent, treat, diagnose, or cure COVID-19 in people. 1 Furthermore, FDA has warned consumers ([see original source] about products containing tianeptine, which is used as a prescription drug in some European, Asian, and Latin American countries, but is not approved as a drug in the United States.

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
No closeout listed in FDA table
Source checked
Jul 16, 2026
Record revision
c496fc460c5a

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.

Sources, dates, and coverage →

What is affected

Product
Alpha Male Plus; Red Vein Bali Kratom Powder Mitragyna Speciosa; Red Ketapang Kratom Powder Mitragyna Speciosa; Tianeptine Sodium Solution; NACET Powder Nootropic; GW-501516 Cardarine – 20 MG/ML; MK-2866 Ostarine SARM – 20 MG/ML; MK-677 Ibutamoren Nutrobal Powder; RAD-140 Testolone; S-4 Andarine SARM Powder; S-4 Andarine SARM 50 mg/mL; Alpha Male+; Red Ketapang Kratom Powder; NACET Nootropic Powder; PREPARE & MITIGATE WITH; COVID-19; NACET Powder Nootropic and virus particles with the text “COVID-19; PROTECT YOURSELF; RESEARCH USE ONLY; Not for Human Consumption
Company
Umbrella
Lot / identifier
The source does not specify this field.
Market / distribution
The source does not specify this field.