Patients who are prescribed medications that are contraindicated based on the other medications they take for medical conditions may have a medical malpractice claim against the prescribing doctor, the pharmacist who filled the prescription, or the hospital where the patient was admitted (if applicable).
Patients have an obligation to tell their doctor and pharmacist about the medical conditions they have and the medications they are taking. In return, doctors and pharmacists have a duty to refrain from prescribing medications that are known to have an adverse reaction with any other medications the patient is taking. After all, taking the wrong combination of medications can be deadly.
Low-T drugs like AndroGel list medicines that are dangerous to mix with a Low-T drug. Among these medicines are insulin, medicines that decrease blood clotting (like Warfarin/Coumadin), and corticosteroids (like Prednisone). If a physician prescribes a patient a Low-T drug knowing that he takes medications that are explicitly contraindicated and does not properly warn the patient of the risks, the physician may be liable for breach of the duty of care.