A combination of alpha-lipoic acid, tryptophan, acetyl L-carnitine and the complex of vitamins B, C and D, which reduces neuropathic pain and maintains cognitive function. Alpha-lipoic acid reduces the production of cytokines and other pro-inflammatory factors associated with pain and inflammation in certain neuropathies. Tryptophan is one of the 20 essential amino acids included in the generic code. It is essential for the production of melatonin and serotonin. Acetyl-carnitine promotes peripheral nerve regeneration and nerve conduction. Vitamins B1, B6 and B12 significantly reduce the severity and duration of neuropathic pain. Vitamin D limits cognitive decline and disease progression in patients with neurodegenerative diseases. Vitamin C improves memory. Composition L-Tryptophan, Alpha-Lipoic Acid, N-Acetyl L-Carnitine, coating agent (hydroxypropylmethylcellulose), L-Ascorbic Acid (Vitamin C), Thiamine Hydrochloride (Vitamin B1), Cholecalciferol (Vitamin D), anti-caking agent (magnesium salts of fatty acids), Pyridoxine Hydrochloride (Vitamin B6) and Cyanocobalamin (Vitamin B12) Instructions for use Take one capsule per day, preferably in the morning, with water. ingredients L-Tryptophan, Alpha-Lipoic Acid, N-Acetyl L-Carnitine, coating agent (hydroxypropylmethylcellulose), L-Ascorbic Acid (Vitamin C), Thiamine Hydrochloride (Vitamin B1), Cholecalciferol (Vitamin D), anti-caking agent (magnesium salts of fatty acids), Pyridoxine Hydrochloride (Vitamin B6) and Cyanocobalamin (Vitamin B12) Nutritional value Vitamin C (50 mg), Vitamin B1 (25 mg), Vitamin D (50 μg), Vitamin B6 (10 mg), Vitamin B12 (1,000 μg), L-Tryptophan (300 mg), Alpha-lipoic acid (250 mg) and N-Acetyl L-Carnitine (150 mg). Pharmaceutical advice In both short-term and long-term (4 years) treatments with alpha-lipoic acid, improvements in the course of pain and muscle weakness were observed.