The letters say distributing and selling these products without FDA approval could result in regulatory action, including seizure and injunction.
The FDA says it is concerned the use of these products may cause serious long-term adverse health consequences in men, women, and children.
The products are marketed as dietary supplements and promoted for building muscle and increasing strength.
Some of the products claim to be anabolic. The FDA says problems associated with anabolic steroids include: liver toxicity, testicular atrophy and male infertility, masculinization of women, breast enlargement in males, short stature in children, adverse effects on blood lipid levels, and a potential to increase the risk of heart attack and stroke.
The FDA's warning letters went to the following dietary supplement products:
Anabolic Xtreme Superdrol, manufactured for Anabolic Resources LLC, Gilbert, Arizona, and distributed by Supplements To Go, Cincinnati, Ohio Methyl-1-P, manufactured for Legal Gear, Brighton, MI and distributed by Affordable Supplements, Wichita, Kansas.
