Lantheus Holdings, Inc. develops, manufactures, and commercializes diagnostic and therapeutic products that assist clinicians in the diagnosis and treatment of heart, cancer, and other diseases worldwide. It provides DEFINITY, an ultrasound enhancing agent used in echocardiography exams; TechneLite, a technetium generator for nuclear medicine; Xenon-133 to assess pulmonary function; Neurolite to identify the area within the brain where blood flow has been blocked or reduced due to stroke; and Cardiolite, an injectable Tc-99m-labeled imaging agent. The company also offers AZEDRA, a radiotherapeutic therapy; Automated Bone Scan Index that calculates the disease burden of prostate cancer by detecting and classifying bone scan tracer uptakes as metastatic or benign lesions using an artificial neural network; RELISTOR for opioid-induced constipation; and PYLARIFY for visualization of lymph nodes, bone, and soft tissue metastases to determine the presence or absence of recurrent and/or metastatic prostate cancer. It also develops flurpiridaz to assess blood flow to the heart; 1095, a PSMA-targeted iodine-131 labeled small molecule; PNT2002 for pre-chemotherapy patients; PNT2003, an SSTR therapy that treats patients with SSTR-positive neuroendocrine tumors; and PYLARIFY AI, an AI-based medical device software to perform standardized quantitative assessment of PSMA PET/CT images in prostate cancer. The company serves hospitals, independent diagnostic testing facilities, government facilities, integrated delivery networks, radiopharmacies, clinics, distirbutors, and group practices. It has strategic partnerships with NanoMab Technology Limited; Bausch Health Companies, Inc.; GE Healthcare Limited; and FUJIFILM. The company was founded in 1956 and is based in Bedford, Massachusetts.