Biolectra Magnesium 365 Fortissimum

One effervescent tablet provides 365 mg of magnesium ions. The official dosage for adolescents and adults is generally one tablet once or twice daily, depending on the documented deficiency and medical advice. [Biolectra official product page](https://www.biolectra.com/biolectra-magnesium-365-mg-fortissimum/)

Dissolve one effervescent tablet completely in a glass of water and drink it. The product is sold in lemon and orange flavors and in packs of 20 or 40 tablets. [Biolectra official product page](https://www.biolectra.com/biolectra-magnesium-365-mg-fortissimum/)

The official formulation lists 670 mg of light basic magnesium carbonate and 342 mg of light magnesium oxide, providing 365 mg of magnesium ions. It does not list Vitamin D3 or choline, so the catalog description may be mixing this product with another supplement. [Biolectra official product page](https://www.biolectra.com/biolectra-magnesium-365-mg-fortissimum/)

It is an authorized medicinal product for documented magnesium deficiency when that deficiency causes neuromuscular problems such as calf cramps. The tablets also contain sodium and potassium compounds, so read the package leaflet and ask a pharmacist if you have kidney or electrolyte concerns. [Biolectra official product page](https://www.biolectra.com/biolectra-magnesium-365-mg-fortissimum/)