Contrasthényl® was a liquid product (distributed in 10ml glass drinkable ampules) used to treat asthenia (fatigue) in elderly people or for patients in a phase of recovery, after a surgery for example. The product contained vitamin B6 (pyridoxine) and aspartate as magnesium and potassium salts. Vitamin B6 does not directly provide energy, but like other B vitamins, it acts as a cofactor in energy metabolism processes. Pyridoxine is a co-factor in a variety of enzymatic reactions involved in intermediary metabolism. A daily supplementation of vitamin B can help to enhance physical performance and to reduce physical fatigue. Some patients with chronic fatigue syndrome may benefit from taking vitamin supplement, such as the one proposed here with vitamin B6 associated with potassium-magnesium aspartate.

This vitamin and mineral supplement is no longer on the market in France (since 1998) but equivalent products can be found. Aspartate is an ergogenic substance (a substance which improves physical performance), but it has not been shown to increase muscle endurance or strength. The real benefit of aspartate-containing supplements remains controversial, but the product can aid in reducing muscle fatigue.

Vitamin B6

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