Delatestryl Heart AttackEnthusiasm for Delatestryl has turned to concern after several studies linked testosterone to an increased risk of heart attack. Now, a growing number of men are filing lawsuits against drug-makers for aggressively promoting the hormones without providing sufficient risk information.

Need a Texas Delatestryl Lawyer? Collen A. Clark is a true advocate for his clients and is passionate about helping Texans that have been injured or wronged. If you or a loved one was injured by Delatestryl, you should contact our lawyers immediately. You may be entitled to compensation by filing a lawsuit in Texas.


Delatestryl (testosterone enanthate) is an intramuscular injection of testosterone that is approved to treat men with hypogonadism. Testosterone is an anabolic steroid hormone and a Schedule III controlled substance because it is sometimes abused by athletes for its performance-enhancing effects.

You’ve probably seen advertisements for “Low T.” Symptoms of low testosterone include loss of libido, depression, decreased muscle mass, and fatigue. Testosterone replacement products like Delatestryl are used by millions of men.

Can Delatestryl Cause a Heart Attack?

Like all testosterone replacement products, one of the most common side effects of Delatestryl is an increase in the number of red blood cells (a process called erythropoiesis). This thickens the blood, forcing the heart to work harder. It also increases the chances of blood clots and heart attack — especially for people who have narrowed coronary arteries, older men, and those with heart disease.

FDA Investigates Testosterone Heart Attack Risk

In January 2014, the U.S. Food and Drug Administration (FDA) began investigating two studies linking testosterone and heart attacks. The first study, published three months earlier, linked testosterone replacement therapy to a 30% increased risk of heart attack, stroke, and death. The second study, published in January, found that men over 65 could be twice as likely to have a heart attack if they used testosterone.

Label Updated With Heart Attack Warnings

March 3, 2015 — In a Safety Communication, the FDA required the manufacturer of Delatestryl to update the label to warn about a possible increased risk of heart attack.

The FDA also asked for new clinical trials to assess the long-term heart attack risk of testosterone therapy. Finally, the FDA clarified that Delatestryl is not approved or recommended for “Low T” associated with aging. Click here to read more.

What is a Heart Attack?

Heart attacks (or “myocardial infarction”) occur when the supply of oxygen-rich blood to the heart muscle is blocked. This “starves” cells in the heart muscle of oxygen they need to survive. After a few minutes, tissues in the heart begin to die. The blockage is usually caused by a blood clot or fatty plaque deposit in a coronary artery.

Symptoms of a Heart Attack

  • Chest pain or discomfort (may spread to neck, back, arms, jaw)
  • Feeling of pressure, squeezing, fullness, heartburn, indigestion
  • Breaking out in a cold sweat
  • Nausea and vomiting
  • Feeling unusually tired, anxious, or unwell
  • Light-headedness or dizziness

Need a Delatestryl Lawyer in Texas?

Collen A. Clark is a true advocate for his clients and is passionate about helping Texans that have been injured or wronged.

Collen’s amazing success in the courtroom and well known dedication to his clients has earned him the recognition of his peers as one of The Top Trial Lawyers in Texas.”

The Clark Firm has assembled a team of trial lawyers with more than 100 years experience, participation in over 600 jury trials and $260 million in verdicts and/or settlements. Please use the form below to contact our Texas Delatestryl lawyers for a free lawsuit review.