FDA warning letter · Drugs

Quicksilver Scientific

Issued · Posted by FDA

FDA published a close-out letter on Oct 3, 2024. The passages below are from the original warning letter.

Selected passages from the FDA letter

Quoted FDA text from the published dataset. These selected excerpts are not the complete letter.

Passage 1

The claims on your website establish that the products are drugs under section 201(g)(1)(B) of the Federal Food, Drug, and Cosmetic Act (the Act) [21 U.S.C. § 321(g)(1)(B)] because they are intended for use in the cure, mitigation, treatment, or prevention of disease.

Passage 2

Your products Nanoemulsified Milk Thistle, Cat’s Claw Elite, Nanoemulsified CoQ10 and Liposomal GABA with L Theanine are not generally recognized as safe and effective for the above-referenced uses and, therefore, the products are “new drugs” under section 201(p) of the Act [21 U.S.C. § 321(p)].

Passage 3

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). “Adequate directions for use” means directions under which a layperson can use a drug safely and for the purposes for which it is intended (21 CFR 201.5).

Citations in the original letter

As cited in this historical letter, not a statement of current regulatory requirements.

  • 21 CFR 201.5