Testosterone injections should be given only by a healthcare professional. Testosterone can lead to serious problems with the heart, brain, liver, endocrine, and mental health systems. Stopping testosterone may also lead to unpleasant withdrawal symptoms. Can I take Coumadin with Testosterone? There is no known interaction between Coumadin and Testosterone in our records. However, an interaction may still exist. It is used to treat low testosterone levels. What do I need to tell my doctor BEFORE I take Testosterone Buccal System? If you have an allergy to testosterone or any other part of testosterone buccal system. Testosterone undecanoate injection (Aveed) may cause serious breathing problems and allergic reactions, during or immediately after the injection. Learn about drug interactions between testosterone cypionate im and warfarin oral and use the RxList drug interaction checker to check drug combinations. The FDA is warning men who take testosterone therapy that it can cause potentially deadly blood clots. Estradiol vs. Testosterone Deca vs. Testosterone Arimidex vs. Testosterone Nolvadex vs. Testosterone Androgel vs. Testosterone Related Searches Warfarin and Blood Clots Testosterone and Estradiol Warfarin and Coumadin Testosterone and Clomid Warfarin and DVT Testosterone and Dhea Warfarin and Clotting Disorder Testosterone and Estrogens Warfarin and Pain Testosterone and Injections Testosterone Cypionate Injections This medication is used in men who make too little of a natural substance called testosterone. In males, testosterone is important for maintaining normal body functions, such as genitals, muscles, and bones. Testosterone is known to interact with 114 drugs. To put this in perspective, aspirin interacts with 469 drugs and has 76 major drug interactions. Testosterone, in contrast, has just seven major drug interactions. The letter states, As a class, anabolic androgenic steroids may increase susceptibility specifically to oral anticoagulants, with reduction of the anticoagulant dosage necessary to maintain the.