Ketosteril® is a supplement that prevents the shortage of essential amino acids. It contains essential amino acids and nitrogen free essential amino acids (keto-acids). 

It is used as a supplement for the management of patients with faulty or deficient protein metabolism in chronic renal insufficiency (glomerular filtration rate is between 5 and about 15ml/minute) in conjunction with limited protein in food of 40g per day or less for adults. Kindly consult your healthcare professionals for further advice. 


One film-coated tablet contains:

  • Calcium-3-methyl-2-oxovaleric acid (a-ketoanalogue of isoleucine, Ca-salt) 67 mg
  • Calcium-4-methyl-2-oxovaleric acid (a-ketoanalogue of leucine, Ca-salt) 101 mg
  • Calcium-2-oxo-3-phenylpropionic acid (a-ketoanalogue of phenylalanine, Ca-salt) 68 mg
  • Calcium-3-methyl-2-oxobutyric acid (a-ketoanalogue of valine, Ca-salt) 86 mg
  • Calcium-DL-2-hydroxy-4-(methyl-thio)-butyric acid (a-hydroxyanalogue to methionine, Ca-salt) 59mg
  • L-lysine acetate (= L-lysine 75 mg) 105mg
  • L-threonine 53 mg
  • L-tryptophan 23 mg
  • L-histidine 38 mg
  • L-tyrosine 30 mg

Total nitrogen content per tablet: 36 mg
Calcium content per tablet: 1.25 mmol = 0.05 g

Other ingredients

Corn starch, crospovidone, povidone (K-value 29-32), talc, highly dispersed silicon dioxide, magnesium stearate, macrogol 6000, colouring agents E 104, E 171, alkaline polymethacrylate, glycerol triacetate.

The signs/names marked with ® are registered trademarks of the Fresenius Group in selected countries.

Product Information

Please note that this product may not be available in all countries due to different registration status. Additionally, approved indications, contraindications, side effects, warnings and all other product characteristics may differ between countries.

If you require any information, please contact your local organization.