Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) in turn can be caused by a number of problems. Some forms of cancer can cause SIADH, particularly small cell lung carcinoma but also a number of other tumors. A variety of diseases affecting the brain or the lung (infections, bleeding) can be the driver behind SIADH. A number of drugs has been associated with SIADH, such as certain antidepressants ( serotonin reuptake inhibitors and tricyclic antidepressants ), the anticonvulsant carbamazepine , oxytocin (used to induce and stimulate labor), and the chemotherapy drug vincristine . It has also been associated with fluoroquinolones (including ciprofloxacin and moxifloxacin ).  Finally, it can occur without a clear explanation.  Hyponatremia can be treated pharmaceutically through the use of vasopressin receptor antagonists .