Magnesium Phosphoricum Magnesium Phosphate is a homeopathic remedy used for neuralgia, painful spasmodic conditions of the gastrointestinal tract, dysmenorrhoea, headaches, PMS, and colics. Hylands Magnesia Phosphorica 6x 500 Tab. Exercise Wellness, Vitamins, Herbs & More Homeopathy Cell Salts, Personal Care, 354973602014