Dr. Thomas O'Connor is the first American board-certified internist to focus his medical practice specifically on the health and recovery of individuals who use anabolic steroids and androgens.
He founded Testosteronology®, a dedicated subspecialty of internal medicine that addresses steroid-induced hypogonadism and associated cardiovascular and metabolic concerns.
Dr. O'Connor has over 20 years of experience treating men and women with a history of anabolic steroid, SARM, and PED use. He has been a board-certified MD since 2005 and provides guidance on harm reduction methodologies.
Dr. O'Connor is a clinical instructor at the University of Connecticut School of Medicine and has been featured in various media publications, including Generation Iron, Dr. Phil, National Geographic, The New York Times, Muscle and Fitness, and others.
Dr. O'Connor also co-authored the largest survey on anabolic steroid use, which involved 2,385 men and was published in the peer-reviewed American Journal of Men’s Health. He holds active medical licenses in Connecticut and Florida.
What is Dianabol? Dianabol (methandrostenolone) is a bulking steroid commonly taken by bodybuilders to increase muscle hypertrophy and strength. Despite Dianabol causing toxic effects, some bodybuilders illicitly supplement with it for its potent effects on mass gain. We have had patients who have taken Dianabol as a first steroid cycle, with beginners wanting significant results […]
Millions of people around the world take steroids; however, only a small percentage do so in a responsible manner. High doses, taking the wrong steroids too early, and failing to implement an effective PCT are all common errors we see among beginners. A lack of knowledge when using steroids significantly increases the risk of danger. A […]
A first steroid cycle is often the most exciting one, with a man or woman set to experience the best gains of their life. Gaining 20–30 pounds of muscle during a first cycle is common in our experience, even if the person has limited knowledge of steroids, nutrition, and training. This demonstrates the power of […]
What Is Clenbuterol? Clenbuterol is a β₂-adrenoceptor agonist and bronchodilator formulated to treat various breathing disorders, such as: Inflammatory airway disease Recurrent airway obstruction A bronchodilator is a medication that opens the airways in the lungs to facilitate easier breathing. Clenbuterol has been an effective anti-asthma medication and an approved prescription drug for humans in […]
What Is Sustanon 250? Sustanon 250, produced by Organon, is an anabolic steroid that contains a blend of four testosterone esters, delivering a staggered release of the hormone post-injection. In this guide, we take a closer look at the pros and cons of this testosterone mix, plus Sustanon 250 cycle information and stacks used by […]
