Indicated for Cramps, Diarrhea, Nausea. Cuprum metallicum is a homeopathic remedy commonly used for cramps and spasms. The spasms often begin in the fingers and toes. It is also a remedy sometimes used for digestive and respiratory issues. The patient is worse before menses, from vomiting and from contact – and better during perspiration and drinking cold water. This homeopathic remedy is a mineral remedy. Active ingredient: Cuprum metallicum [HPUS]. Inactive ingredients: Sucrose/lactose pellets.