Niccolum sulphuricum

Natural History.
      Sulphate of Nickel. NiSO4.
      Trituration.

Clinical.
      Headache.
      Neuralgia, periodic.

Characteristics.
      J.Y Simpson cured with Ni. s. periodical headaches of very severe character.
      Hale used with success the 2x trit.
      in periodic neuralgias of malarial origin.