Effervescent tablets with lemon flavor and with sweetener from stevia plant. Magnesium, calcium, pantothenic acid and vitamins B6, B12 contribute to normal energy-yielding metabolism. Magnesium contributes to electrolyte balance, normal protein synthesis and along with potassium and calcium contribute to normal muscle function. Magnesium, potassium and vitamins B6, B12 contribute to normal functioning of the nervous system.