Customize your care with Boiron single medicines for highly targeted relief. Zincum Metallicum 30C is a homeopathic dilution of zinc that relieves leg cramps. The pellets melt in your mouth and can be taken on the go, no food or water needed. They come in an easy dispensing tube of approx. 80 pellets (16 doses). Boiron single medicines are ideal for adults and children and do not contain artificial colors, flavors, sweeteners, or preservatives. Always use according to the label instructions unless directed by your health care professional.