PKU Anamix Infant 400g For use in the dietary management of proven phenylketonuria (PKU), in infants from birth to 12 months & as a supplementary feed up to 3 years.PKU Anamix Infant is an amino acid based phenylalanine-free powdered infant formula containing essential & non-essential amino acids, carbohydrate, fat, vitamins, minerals & trace elements. Supplemented with long chain polyunsaturated fatty acids & prebiotic fibres.hese products should nt be used as a sole source of protein but must be given in conjunction with a protein source, to supply the phenylalanine, fluid & general nutrition requirements of the patient in quantities as prescribed by a clinician or dietitian. Only intended for use by patients with PKU. Use under medical supervision. Not for parenteral use. Not suitable for use as a sole source of nutrition.