1. Noun Phrase Strychnos nux vomica is a plant found most often in Australia and the southern part of Asia. 2. Noun Phrase Homeopathic Educational Services says nux vomica is often used to treat people whose stomach problems stem from hangovers or the recreational use of drugs and for when those whose symptoms are worse in the morning. 3. Noun Phrase Do not take this in lieu of any prescribed medications without consulting with your doctor as to whether nux vomica 30c will be helpful for your symptoms. 4. Noun Phrase The nux vomica tree of Asia produces strychnine and is used in concert with other substances to act as a heart stimulant.