One magnesium effervescent tablet contains magnesium (375 mg), vitamin C (120 mg) and vitamin B6 (1.4 mg). Magnesium, vitamin C and vitamin B6 contribute to the reduction of tiredness and fatigue. They also contribute to normal energy-yielding metabolism and normal functioning of the nervous system. Magnesium contributes to electrolyte balance and normal muscle function. Sugar – free. Tablets are taken in the dose of 1 tablet a day, dissolved in a glass of water.