Madisyn Cox Sues Cooper Clinic Affiliate Over Multivitamin that Led to Suspension

Photo Courtesy: Peter H. Bick

Madisyn Cox, a world-class competitive swimmer and former member of the U.S. National Swim Team, has filed a lawsuit against an affiliate of the well-known Dallas-based Cooper Clinic for negligently producing and selling its Cooper Complete Elite Athlete multivitamin, which was subsequently found to contain a banned substance, according to her lawyers.

She is eligible to compete after her suspension was reduced.

The rest of the press release reads as follows:

In March of 2018, Ms. Cox was initially slapped with a two-year suspension from competition by FINA, the global sanctioning body for swimming and diving, after routine blood and urine tests found trace amounts of trimetazidine in her system. The substance is used as a heart medication outside of the U.S. but is not approved for sale in the U.S. by the Food and Drug Administration.

Although her suspension was reduced when the source of the banned drug was identified, and Ms. Cox was cleared to resume competing in September 2018, she still faces significant reputational, financial and emotional consequences. Ms. Cox was forced to miss several major events and to return fees, grants and prizes from the U.S. Olympic Committee and USA Swimming, and was unable to pursue lucrative corporate sponsorships.

In addition to that lost income, Ms. Cox and her family incurred considerable expense in hiring several medical and legal experts to seek the source of the banned substance and a complete revocation of her suspension.

Testing by a World Anti-Doping Agency accredited laboratory last summer found that both a sealed bottle of the Cooper Complete vitamin Ms. Cox had purchased, and the unsealed bottle of the Cooper Complete vitamin Ms. Cox was taking at the time of her positive test, contained trimetazidine. Ms. Cox had taken the multivitamin to correct low levels of iron in her blood, never suspecting it could contain a banned substance.

The Cooper Complete brand of nutritional supplements was launched in 1997 by famed Dallas aerobics guru Dr. Kenneth Cooper. According to the company’s website, the product line “was developed by a team of physicians and scientists from leading universities alongside Dr. Cooper to address weaknesses found in many supplements.”

“At what might have been the height of her career, Madisyn paid a heavy price because she trusted a company she shouldn’t have,” said her attorney, Mark Lanier of The Lanier Law Firm in Houston. “The shock, pain and emotional trauma she has bravely faced are  almost incalculable, and we will be doing everything possible to gain justice for Madisyn and her family. We also hope to force this company and this industry to do a better job in assuring the purity of their products and the proper labeling of each product’s ingredients.”

A native of Lubbock, and now a resident of Austin, the 23-year-old Ms. Cox was an All-American student-athlete at The University of Texas from 2013-2017. In the 2017 FINA World Championships, she earned a bronze medal in the 200 IM and a gold medal as a member of the 800M free relay team. In March of 2018, prior to her suspension, she recorded the fastest time in the world in the 200 IM at the TYR Pro Swim meet in Atlanta.

The case is Madisyn Cox v. Cooper Concepts Inc, et al, No. D-1-GN-19-002032 filed in the 250th District Court in Travis County.

— The above press release was posted by Swimming World in conjunction with The Lanier Law Firm. For press releases and advertising inquiries please contact

Notify of

Welcome to our community. We invite you to join our discussion. Our community guidelines are simple: be respectful and constructive, keep on topic, and support your fellow commenters. Commenting signifies that you agree to our Terms of Use

Newest Most Voted
Inline Feedbacks
View all comments
Jon Parkhurst
5 years ago

She deserves the $$$

5 years ago

Agree! Especially to pay for all the costs she incurred in fighting this and missed funds she could have earned in this time frame!

Peggy MacRae
5 years ago

The atheletes have to be so careful at the National level & beyond!!!

Larry Cleveland RDN
5 years ago

This is a massive fail. So sad the supplement industry as a whole will not allow sensible regulation. I just found out Shaklee Corporate was going to make Coopers vitamins but his institute decided to make their own. Shaklee is used by 100+ US Olympic Athletes headed by Eli Bremer, elite Pentathlete. Each of their products are tested for 350”
Contaminates and banned substances. Sad for her she has to be the victim after all her hard work!! Ugggg!

Would love your thoughts, please comment.x