FDA flags some weight-loss pills, says "stop taking them"

Ingredients used in more than 25 products marketed for weight loss may contain controlled substances, anti-seizure medication and a suspected cancer-causing agent, the FDA has warned.

The products, which are also marketed as dietary supplements, are available on the Web and in retail stores. Though they are promoted as "natural," they may contain potentially harmful ingredients not listed on product labels, according to the Food and Drug Administration. The products have not been approved by the FDA, are illegal and could be harmful to consumers, including prescription drugs in amounts that greatly exceed their maximum recommended dosages. Some of the products may cause high blood pressure, seizures, tachycardia, palpitations, heart attack and stroke.

"The FDA advises consumers who have used any of these products to stop taking them and consult their healthcare professional immediately," the FDA said in a news release.

The FDA is currently seeking a recall of the products.

The tainted products are:

Fatloss Slimming

Japan Lingzhi 24 Hours Diet

7 Day Herbal Slim

999 Fitness Essence

Imelda Perfect Slim

Perfect Slim

ProSlim Plus

Slim Express 360

Superslim

Venom Hyperdrive 3.0

2 Day Diet

5x Imelda Perfect Slimming

8 Factor Diet

Extrim Plus

Lida DaiDaihua

Perfect Slim 5x

Royal Slimming Formula

Slimtech

TripleSlim

3x Slimming Power

3 Day Diet

7 Diet Day/Night Formula

GMP

Miaozi Slim Capsules

Phyto Shape

Slim 3 in 1

Somotrim

Zhen de Shou