As a rare metal, Thallium Metallicum is used to relieve pain from arthritis and fatigue. Thallium Metallicum is also said to help the boost the immune system and metabolism. It appears that Thallium Metallicum influences the thyroid and adrenaline.

A rare metal with At Wt. 203.7. Used as a Homeopathic medicine derived from a trituration of the solution of the sulfate, thallium sulfate; left from the distillation of Selenium. (Homeopathic potencies accredit their strength and efficacy to the electromagnetic signatures of the original substrate; these are scientifically created dilutions and succussions of medicines such that generally not even a molecule of the original substrate or medicine is present in the medicine).

As a Homeopathic or used simply as a micro-nutritional, it has demonstrated effectiveness against the following symptomology: relieving violent pains of tabes dorsalis, or spinal atrophy, relieving the chronic progression of the hardening of the posterior spinal roots, cord and the peripheral nerves leading to ataxia (muscular incoordination), neuralgia, lancinating pains, muscular atrophy, disorders of the joints, paralysis. (Clarke)