Homeopathic Nux vomica is made from the seeds of the Strychnine tree (Strychnos nux-vomica) which is native to Southeast Asia particularly India. The raw seeds contain a toxic amount of strychnine alkaloids that have therapeutic action at certain lower doses. To prevent lethal effects ancient Chinese and Indian healers would process the seeds before using medicinally in the treatment of nervous cardiovascular and digestive system disorders. The seed's bitter taste also made them useful as a stimulant to improve digestion and appetite.

Homeopathic Nux vomica is prepared in a safe microdosed form and continues to be a useful medicine for gastrointestinal issues. It relieves nausea and cramps from indigestion especially after excessive eating of spicy food or drinking coffee or alcohol.* There are several homeopathic medicines for indigestion and Nux vomica works best for people that are easily irritable have a sedentary life and tend to eat too fast and too much.